How to make a snail for cold forging

How to make a snail for cold forging with your own hands - step-by-step instructions and drawings

Any master, setting up a home forge, acquires a minimum set of tools and accessories. But, as a rule, the simplest technological operations with metal blanks are done only at the first stage.

With the acquisition of experience in working with “iron”, both the desire and the need to engage in artistic forging appears - this is both home decoration and additional income. Unfortunately, a machine for giving samples a spiral shape - a snail - is practically not found on sale. One way or another, home craftsmen, as a rule, make it with their own hands. Features of independent design and assembly of a snail for cold forging are the topic of this article.

Features of the snail

The author specifically decided to draw the reader's attention to a number of points. This will help you avoid some mistakes in the future. For example, having understood the structure of the snail and the principle of its functioning, someone will want to assemble their own device, different from those whose drawings will be presented below.

Such a device (if we are talking about equipment made by hand) will allow bending samples using the cold forging method with a cross-section (square side) of no more than 10 - 12 mm. This implies a “manually controlled” snail model. Almost no one has anything to do with larger samples in everyday life. The machine can be improved by installing a drive and an electric motor.

But how rational is this for a small home forge?

• Cold forging is carried out at low speeds. A sharp change in the geometry of the metal leads to the appearance of cracks (ruptures).
• You will have to not only select the power of the electric motor, but also the gear ratio of the gearbox. Plus, you need to mount the automation circuit with the installation of the corresponding elements (buttons, starter, and so on). All this significantly complicates the manufacture of the machine.

Making a snail

Several devices are shown in the figure. This is roughly how it should turn out (basically).

Assembling a snail with your own hands is one of the options for independent design, when it makes no sense to give recommendations indicating the exact parameters of all components. Here you need to focus on your own idea of ​​what will bend and how (radii, number of spiral turns, and so on). But if the essence of the manufacturing process becomes clear, then the assembly itself will not cause any difficulties.

Desktop device

The cold forging process requires a lot of effort. If you already have a ready-made workbench, you may have to strengthen it. When making a snail from scratch, the table frame is made only of metal - a channel, a corner, a thick-walled pipe.

It is clear that the tabletop should also be metal. During the operation of the snail, it will be subjected to both static and dynamic loads. Therefore, ordinary iron sheet is not suitable. Only a plate, and not less than 4 mm.

Marking and installation of “attached” equipment

Perhaps the most creative stage of work. You can do everything with your own hands. But how, taking into account the future or limiting ourselves to the production of similar samples?

 Option 1. The simplest. The meaning of the operation is that the outline of a spiral is drawn on the tabletop.

Essentially, this is a sketch of future shaped parts, for example, from a rod. After this, it is enough to cut out several segments from a thick strip of iron, bent along a radius. They are welded to the tabletop, and the bending mechanism is basically ready.

Some may find this design more attractive - with a solid stripe.

But practice shows that it is more difficult to work with such a snail. For example, when removing the finished product from it, certain difficulties will arise.

 Option 2. The same, but several contours are drawn. Holes are drilled along each one and threads are cut into them. All that remains is to prepare the templates for the stop segments. They are usually made with your own hands from thick cardboard or plywood.

Overlays are made from metal, in which, after the next marking, holes are also drilled, coinciding with the landing “sockets” in the slab. This design will make it possible to organize the production of spiral-shaped workpieces with different radii on one table. You will only have to, depending on the shape of the bend, install the appropriate segments in certain places. Their fastening to the base is bolted. You can do it differently. Instead of such stops, install cylindrical ones.

For fixation, they are attached with bolts (from the bottom of the slab) or are made immediately with legs (+ thread) and screwed into the tabletop. It's much more convenient with them. And if you have your own mini-lathe, then turning it yourself will take a couple of hours.

 Option 3. Prepare several removable modules that can be changed as needed.

Snail assembly

The ploughshare is installed, the levers and the side stop are attached. All this is clearly visible in the pictures.

Everything that is in the shed (garage, attic) will be used - cuttings of pipes, rods, corners, and the like. If the principle of the snail’s operation is clear, then no further hints are required.

Functionality check

This is always implied, so no comment.

In principle, making a snail for cold forging is not so difficult. Moreover, there is no single standard for such devices. Someone will say – isn’t it easier to buy a factory model? Firstly, as already said, you will have to search for a long time. Secondly, it is not a fact that her capabilities will coincide with the fantasies of the master. Thirdly, you will have to lighten your wallet by about 19,000 (manual) and 62,000 (electric model) rubles, at a minimum.

Good luck in making your own snail!

Source: https://ismith.ru/equip/ulitka-dlya-xolodnoj-kovki-svoimi-rukami/

Snail cold forging machines: homemade and purchased, operating principle and equipment: universal, templates, patterns, tools

On this page you will find information on the topic “snails for cold forging”, as well as links to other pages of our site that are related to this topic. Read the detailed information below, to find out more, please follow the links that interest you; at the end of the page there is a list of pages with this label.

To decorate the interior of premises and local areas, curls made of metal rods are often used . A snail cold forging machine is a device used to create rounded patterns (curls, volutes). You make templates from metal sheets with your own hands for future use.

This article is devoted to the purpose of snail machines, their structure and scope of application in general, without dividing them into homemade and industrial ones. There is a separate article on homemade devices of this type on the site.

Operating principle and device

The snail machine allows you to produce rounded shaped elements with or without heating. The master works manually or uses an electric drive (this method is used when it is necessary to perform large volumes of work).

The snail machine can be designed in different ways:

• In the form of a template that is welded to the base;
• In the form of separate collapsible elements (segments), which are fixed to the base.

Cold forging machine Snail type Stalex SBG-30. Photo ForgingPRO

A simple manual drive is used by winding the rod onto a template using hands or levers . To operate an electrically driven machine, the lever is attached to the bed leg and moves using a bearing that moves along the base of the scroll. In devices with a complex design, rotation is performed by a jig attached to the shaft axis. It can be moved using levers or an electric drive.

Varieties

There are several main varieties among snail pens :

• Manual monolithic non-removable . It uses a fixed metal template.
• Manual removable design . When using it, the metal is bent around segments that are inserted into holes on the plate. Useful for creating a variety of parts with unusual shapes. The cross-section of the metal rod is limited.
• Collapsible models with rotation . Used using mechanical force, they allow you to obtain identical products with complex shapes. They work using levers.
• Horizontal and vertical models . They allow you to bend metal in a comfortable position and simplify your work.

Snail type machine PROMA/ Photo VseInstrumenty.ru

If the work takes place on a monolithic jig, then the final parts have the same shape. And when using removable structures, the curls are more diverse. But the reliability of fastening the template under such conditions is lower than that of a permanent one. The threaded connections will have to be constantly tightened, otherwise they will quickly weaken.

Other equipment: universal, templates, patterns, etc.

Cold forging fixtures are used for arc bending, angling or twisting. Below are the main types of equipment.

• Universal machines are used to produce significant volumes of elements, therefore they are used by employees of large and medium-sized companies. Using universal machines, elements of different shapes are produced: curls, baskets, rings, torsioned rods, etc.

Forging machine Azhur-1M. Photo ForgingPRO

• Cold forging machines are either manual or electric. Similar devices include a snail, as well as a bender, a twister (flashlight), a wave, and a globe.

The machines also include:

• Stamp press. Using this device, a certain pattern is applied to metal by printing it from templates under pressure.
• Mechanical unit . A device that helps bend a rod into a circle shape with different diameters.
• Forging devices, which include templates, mandrels, and jigs, are used by individual craftsmen who are not chasing the number of elements produced.
• Hand tools: pliers, forks, heavy hammer or sledgehammer are also more often used by individual craftsmen.

For your information! Templates, jigs and patterns for cold forging can be varied; each master makes them independently to obtain an exclusive form of the material. The most common types are listed above; you can make them yourself at home.

Popular makes and models

Machines for cold forging of metal are easy to purchase in a store. The most common models are listed below:

1. NK-1 is a universal rolling machine for cold forging. It is a multifunctional metalworking plant with several units. Allows you to produce the most common elements: curls, rings, volutes, crow's feet, twisted rods, and can also apply indentation patterns to strips, profile pipes, round timber and squares. Read more about the machine here.

The machine is made by the Nova Kuznya company , which has been on the market for more than 10 years. The company is distinguished by a wide variety of models for both large production and small workshops.

Universal machine NK-1

2. BlackSmith UNV2 is a universal machine for professional forging. Can perform the following operations: bending corners, longitudinally twisting rods, bending pipes, bending curls and waves, creating baskets and cones. It is possible to program operations. More information about him here.

The machine is manufactured in China at BlackSmith with 40 years of experience . The company exports goods to Russia, Germany, Italy, USA, England and other countries.

Universal forging machine Blacksmith UNV2. Photo VseInstruments.ru

3. Decor-3 is a hydraulic press that is capable of performing both cold and hot forging of metal. One worker is enough to service the machine; the production time for one part is 7-8 seconds. Find out more about him.

The press is produced in Russia at the Decor factory , which has been operating for more than 10 years. There is the possibility of personal production of machines and components.

How to make it yourself, sizes and other important information

It is possible to make a snail machine for cold forging yourself. To do this, proceed according to the following scheme:

• , a drawing of the future model is created on paper . At this point, you need to decide on the size of the materials that you plan to process. The larger the diameter of the proposed bars, the wider the machine pitch should be selected. Usually the turns are spaced at a distance of at least 12-13 mm so that a 10 mm one fits into the groove. rod.
• To create a working surface, take a metal sheet with a thickness of at least 4-5 mm . A circle with a diameter of 80 cm is cut out of it. The area of ​​the sheet also depends on the models that will be made.

Working surface of the snail before attaching the template

• To produce the mold, a metal sheet 3 mm thick is taken. On the future device, the edges of the workpiece must be fixed; for this, pressure rollers are used. Instead, they take a cut rod, which is equal in length to the strip of the workpiece.
• The snail itself is made from a metal rod bent in the desired direction . Instead, they take a sheet of metal, and then cut out segments from it and secure them with bolts.
• As an additional device, a lever is made from a rod with a cross-section of 2 cm and a bearing.

In addition, there is the possibility of independently manufacturing other machines for cold forging: flashlight, wave and others.

Buy

If opportunities do not allow you to make a machine with your own hands, you can easily purchase it in a store. On our website there is a special section with a selection of reliable companies selling ready-made devices.

In addition to the snail-type device that is so popular among customers, manufacturers also offer to buy other cold forging machines: manual and electric.

Purchasing the devices will allow you to complete cold forging projects yourself.

Source: https://kovka-svarka.net/ulitka/

How to make a snail for cold forging with your own hands

Any owner of a small workshop can make a beautiful fence from a metal rod. The main decorative elements that create the pattern of the canvas are snails for cold forging, which you can create with your own hands. Spirals of various sizes are laid out in a pattern and secured by welding. The result is fabulously beautiful lace made from rough metal.

Cold forging is performed on various devices that are simple in design. It’s difficult to buy a conductor; it’s easier to make one yourself. Snails are made in various ways. Each master draws his own sample. The optimal form is the golden ratio.

Snails for cold forging

Types of device and principle of operation of the cochlea

The spiral obtained by the rod after bending depends entirely on the shape and size of the jig for artistic forging. If it is non-separable, then for each pattern you need to make a separate tool. There are different types of jigs for artistic cold deformation of thin rolled products: from manual bending devices to modernized pipe benders. Without industrial equipment, you can make your own only the following types of snails for cold forging:

• monolithic;
• removable;
• collapsible.

The structure and principle of operation of homemade snails are quite simple. First, the end of the rod is clamped in the center of the spiral, and then the rod is bent along the outer surface of the conductor. Using the simplest equipment, a master with a rod walks around the snail, manually and with the help of a lever, placing it in the conductor. When using a movable device, a lever is used to rotate it.

The jig can be positioned horizontally and a device can be made with a steering wheel when the stamp rotates vertically. Cold forging with manual bending is possible on small sections of the rod (up to 12 mm).

Design specifications

The dimensions of the volute for cold deformation are determined by the diameter of the rolled product being bent and the required curl size. A sketch of the design of the forged product is first made. It is broken down into individual elements. For each spiral, a conductor is made - a snail or any other.

The simplest machines for cold forging have a massive, durable stand, at the upper end of which there is a groove for fixing a plate with a jig. Deformation is carried out due to the efforts of the master’s hands. He clamps the end of the rod and walks around the fixture.

If there is a rotary table and a lever, it is possible to produce volutes for rolling of a larger cross-section.

Making a simple snail with your own hands

The snail machine usually has replaceable jigs of different sizes. First, a tool template for cold forging is drawn . Then a snail is made from it - a conductor, or rather an open stamp for winding. A snail of the desired shape is cut out and attached to the base.

The most aesthetically pleasing are spirals made according to the golden ratio principle. To do this, you need to draw a square with a side equal to the cross-sectional size of the rod for which the jig is being prepared. Then the compass is placed alternately at each vertex of the square and a line is drawn clockwise. The line should end near the beam on which the compass leg stands.

First, you should select a tool model, then draw a sketch of the structure and create a template for the future spiral. It is necessary to proceed from the number of parts that are planned to be made and their standard sizes. To make a fence around your own home, you can use a non-separable tool.

Monolithic non-demountable snail

A non-removable conductor can be made in two hours in a garage if you have a welding machine:

1. A life-size sketch of the future snail is made on a sheet of paper.
2. A strip 40 mm wide is cut from a sheet of metal 4–5 mm thick.
3. The strip is bent on a pipe bender, constantly adjusting to the template. You can use a homemade machine with a finger and a limiter for the movement of the sheet for unwinding.
4. Cut a strip into a cone from the first section to the end. The minimum size remains 20 mm.
5. Weld the resulting spiral with its flat end to a metal plate measuring approximately 10×200×200.

After cooling, the homemade stamp is ready for use.

Removable design

The removable jig is made of a sheet with a minimum thickness of 10 mm. Ideally, the spiral will be cut on a CNC machine, but you can make it yourself. The contours of the future part are applied to the sheet and cut out with a grinder. If there is a router, a template is made, and processing is carried out using a copy sleeve.

For fastening to the base, holes for bolts are marked and drilled in the manufactured spiral. The tool is quickly changed and various spirals can be made with minimal time spent on changing materials.

Collapsible snails with rotation

A conductor of complex shape is considered the most difficult to manufacture independently. Allows you to make spirals with a different number of turns on one stamp.

The collapsible rotary volute is a removable model made of several segments. First, you can make a large, multi-turn spiral from a sheet. Then cut it into several segments. The cut should be very thin and at an angle.

In each segment, 2 holes are made and pins are inserted into them.
For precise assembly of the conductor, they must be made using the method of sweeping on the platinum. SNAIL, COLD FORGING WITH YOUR HANDS
In the process of bending a rod, segments are added to the desired curl size.

Collapsible snails made according to the golden ratio formula are universal.

Source: https://metalloy.ru/stanki/dlya-kovki/ustrojstvo-ulitki

How to make a Snail machine for cold forging with your own hands?

The “Snail” machine for cold forging with your own hands is used by most craftsmen when working on original rolled products. The blacksmith business is most often based on the production of forged products, where there are parts in the form of original hinges.

It is impossible to imagine an entrance gate in the style of the 17th-19th centuries without curls, monograms and other original elements. They not only decorate, skilled craftsmen could create written greetings from metal. Complex curved fragments are used as reinforcements on fences, entrances, fence railings and other decorative items. Complex profiles add delicacy to structures.

Devices for bending metal elements “Snail”

To bend workpieces according to certain parameters, auxiliary conductors are used, called “Snail”. They serve as a special template that allows you to reproduce dozens and, if necessary, hundreds of similar parts. The “Snail” machine for cold forging bends parts without additional heating.

The work is based on the deformation of metal according to a certain principle. To bend, you have to put in a lot of effort. Therefore, craftsmen quite often equip “Snail” devices with an electric drive. Geared motors help to develop significant forces with a limited shoulder of force application. The torque in the processing area can reach several tens of kilograms.

If such work is performed only due to the physical strength of the blacksmith, the worker will get tired quite quickly. Its productivity will drop to zero. And with a mechanical assistant, hundreds of workpieces can be produced per shift.

It must be taken into account that bending of workpieces is an intermediate stage in the manufacture of complex structures. They still need to be installed in the right place and welded. Only then will an intermediate result be obtained. Then the product will need to be painted and installed at the place of order. All operations will require not only time, but also the physical strength of the master.

Structurally, the device can be:

• Non-separable, then it will be used to bend parts only to certain lengths. The resulting spiral has certain limitations in use.
• Prefabricated (there are additional fragments to increase the bending time), and the device can be used to bend long parts. Large sized parts will be received.

To work with parts from small profile pipes, some make manual devices. They involve the use of levers to help move the workpiece around the mandrel. The finished parts are removed from the end, slightly loosening the tension.

Most often in such cases I use square rolled steel □812. Some craftsmen manually bend profile pipes 15·15 mm with a wall of 1.5 mm. For larger products, a mechanical drive is required.

In a simplified way, the technological process of making a “Snail” machine with your own hands can be represented as a series of sequential operations.

1. A profile of the product to be manufactured is drawn on a sheet of paper. When drawing, the dimensions of the product are maintained. The drawing is needed only to obtain the profile of the part itself. Attention! When processing, the thickness of the workpiece is taken into account. A gap of at least 34 mm is needed, then the product can be removed after bending it in the device.
2. For most machines, a central stop is made. It will record the beginning.
3. Different craftsmen use their own fixation techniques, so their products can be distinguished by their handwriting.
4. A support plate is cut from a steel sheet. The center will be welded to it, as well as the spiral. The thickness of the plate must be at least 3 mm, as significant forces will be applied. The size of the plate in the future will also determine the parameters of the curl.
5. Using the spiral drawing, the workpiece is bent from the strip. When bending it, the parameters are controlled. The more accurately this element is manufactured, the easier it will be to manufacture elements for forging products. Attention! If it is necessary to make curls with more than one turn, you need to cut the spiral strip diagonally. Therefore, a strip of much wider width is used. The minimum size corresponds to the height of the profile that is going to be bent on the machine.
6. The device is placed on a special rack to make it easier to form finished products. For small parts it is convenient to place them on a vertical stand.
7. To make the job easier, weld the handle. It is installed on the reverse side so that it does not interfere with the installation and removal of workpieces.

Step-by-step manufacturing of a small-sized manual machine for making curls

A small machine designed for the production of curls from rolled strip with a width of 2030 mm. It's easy to make it yourself.

Center

First the center is made. To do this, a small fragment of round timber is sawed off. The workpiece is fixed in a vice and the cutting line is marked. Using a cutting disc and an angle grinder, the workpiece is sawed off.

https://www.youtube.com/watch?v=lQTR7BRmoIo

It has a diameter of 38 mm. The side surface is not further processed.

The center length is 28 mm. A little more is possible, but this is enough to bend a strip 30 mm wide.

A hole Ø 8 mm is drilled on a drilling machine. It is placed eccentrically. This situation is due to the fact that it is necessary to make a clamp for the end of the workpiece.

A profile is drawn, which should be removed using cutting and cleaning discs installed on the grinder. The workpiece is secured in a vice and excess metal is removed.

The flap discs protect the surface so that there is a smooth transition between different surfaces of the clamp.

To make it easier to fix the end of the workpiece in the future, you need to drill a hole. It is placed on the radial surface of the center. A hole is drilled for an M10 thread.

Using a set of taps, the internal thread is cut. A headless screw will be used here. After fixing the workpiece, it will hide inside the metal of the center.

The center is welded to the 4 mm thick base plate. This completes the work of its production.

Making a fixture

To make it easier to work with the device, a shaft is welded to the back side of the plate. By rotating it in a special mandrel, the snail will rotate.

The outer surface must be ground so that the welds do not interfere with the free fit of future workpieces.

The future spiral is drawn on the plate. A contour is created where it will be welded later.

A spiral is bent from a strip 4 mm thick. It must correspond to the project.

After checking the spiral against the template, the excess is cut off, and the spiral itself is welded to the plate and to the center.

A 40×40 mm profile pipe with a 3 mm wall is used as a stand. Holes are drilled on it for attaching machine elements. Using support platforms, the prepared parts are fixed.

The handle is visible on the reverse side. It was secured to the shaft using a bearing. The prepared “Snail” can rotate.

A performance check is being carried out. The handle turns the spiral around the center axis.

Making a simple part on a machine

The strip steel workpiece is cut to the required size. This size is usually clarified by drawing the finished product and its component elements.

The free end is placed in the center of the spiral. The workpiece is secured using an internal screw.

The “Snail” rotation is performed. The workpiece is pressed tightly against the guides. This requires some effort to obtain the desired product profile.

By turning the device further, a curl is made. If necessary, insert the other end of the workpiece and make a closed or open curl.

Usually the other end does not stay straight. It is also bent. Therefore, a distinction is made between internal and external reverse curls. Marks are made on the device itself using a marker or chalk. They are used as a guide when making curls with the required parameters.

As you can see from the step-by-step guide, using a simple set of tools, a homemade curl maker is easy to make. How much does it cost? Its price is determined by the cost of the blanks. Often the price is minimal.

If you try to bend a profile pipe without special preparation, the weld will come apart. It will be a marriage.

Blacksmiths with extensive experience make more complex machines to make their products. They additionally equip the “Snail” with removable elements.

Step-by-step technological process for making a reverse curl on the “Snail” machine

The rolling rollers perform sequential crimping of the pipe. Protruding ribs are formed, and the weld remains inside the layer, offset to the center.

The pipe ends are compressed on parallel eccentric rollers. It becomes like a stripe. In this form it is easier to fix it on the machine.

The shank is formed in a special device. Now the workpieces will be fixed on the machine in one movement.

The workpiece is fixed in the center. There is a groove that secures the shank. It can be seen that the spiral has a uniform descent in height.

After fixing the shank, the electric motor is turned on. Forming of the part begins.

The loop is formed when the workpiece touches a special support element. It is more often called the support shaft. To reduce the force, it is equipped with a bearing. The part rotates freely around the support.

Part of the spiral is formed. But if it is necessary to process for a longer length, a removable element will be installed.

A blank is also formed from the other end. Here the master determines in which direction to bend the part.

To continue work, a removable element of the “Snail” assembly is installed.

Now you can form the bend of large parts.

Even long workpieces are easily bent to specified dimensions. Marks are made on the work items. They are used to guide how much to bend.

On the reverse side, additional bending of the part is performed.

The product is being finalized on both sides.

The finished part has a finished appearance. If necessary, the shanks will be sawed off. Then no one will guess how the workpieces were fixed.

If you need to make a small part, then use another “Snail”. Experienced craftsmen have several of them.

Examples of products with curls

Original canopy over the entrance to the building:

When decorating a French balcony, original curls give an openwork look to the entire product.

On a flight of stairs, the curls look very original.

Using only curls, they make supports for the bench, and also create a grate for the fireplace in the same style.

The hand of an excellent craftsman is visible on the spiral staircase. Not everyone will be able to make such a product.

The gate leaf contains elements made on the “Snail” machine. The heavy product acquired a special lightness.

Light staircase in high-tech style. It can decorate not only a country house. Modern palaces with minimalist design can have an excellent appearance.

The scope for creativity is unlimited. Many blacksmiths are true artists. They decorate the world around them.

“Snail” – cold forging with your own hands.

Conclusion

• The cold forging method, which uses Snail machines, allows you to produce original curls.
• You can make a simple machine with your own hands. It can be used to produce professional blanks.
• A complex machine with removable elements will allow the production of large spatial parts.
• The use of curls in the manufacture of blacksmith's products opens up wide possibilities for creativity.

Source: https://metmastanki.ru/stanok-ulitka-dlya-holodnoy-kovki

Snail for cold forging: how to make it yourself and drawings for making a homemade machine

Cold forging requires several types of machines, everyone knows this. Which one is number one, that is, the most important? Without which cold forging will not work? There is only one answer: only a snail for cold forging. If you look at it, having only this machine in your arsenal, you can create wonderful forged products from metal curls - from simple ones to real openwork works of art.

Fortunately, snails for cold forging are machines that you can make with your own hands without losing the quality of the products.

How it works and what it is like

At its core, it is the deformation of metal rods in the form of their bending. In order for the rod to deform without heating, it must be rigidly fixed to the machine template. This machine is not for weak hands: scrolling and deformation are done using manual effort.

Of course, the snail can be equipped with an electric motor drive. But before that, you need to carefully consider the feasibility of this drive. The main argument for an electrical addition is the large amount of work involved.

Snail for forging - drawing.

The machine can operate in two different designs:

1. The simplest option is a template welded to the base. This is a monolithic conductor with a single curl option in the form of a template.
2. An option that gives more variety in curls is several modules with curls of different diameters, which are attached to one base.

Manual drive can also be provided in different options:

1. The lever can be any suitable device.
2. A lever that is attached to a frame and driven by a moving bearing.
3. More complex designs use as many as three levers that rotate the axis and the conductor attached to it.

How to make a snail for cold forging, which option to choose - easier or more difficult? The choice again depends on expediency, in other words, on your production plans: what are you going to do, with what productivity and in what quantity?

Let's start with something simple: a monolithic snail

What is the work of a master, and how does it differ from other works? The master does any, even the simplest work with feeling, sense and pleasure. What pleasure can there be in independently producing a primitive machine?

And here’s what – clearly structured planned stages of work:

• A drawing with thoughtful dimensions that can be applied to paper or directly onto the base of the conductor. All dimensions must be strictly observed, up to the thickness of the metal strip matching the thickness of the mold outline in the drawing. By the way, the minimum thickness should be at least 3 mm. The distance between the turns must also be sufficient to accommodate the deformation rod between them. If, say, the size of your rod is 10 mm, then the most optimal distance between the turns will be 12 - 13 mm.
• The base of the machine must be quite massive; it must be cut from steel with a thickness of at least 4 mm. It is better to make the shape round; the diameter of the circle should be larger than the diameter of the snail. Most often, the size of the base is about 70 mm.
• To make a curl, the metal strip should be slightly thinner than for the base: 3 mm will be enough. If possible, the workpiece needs to be calcined so that it is better deformed and amenable to processing.
• The curl shape from the steel strip must be welded to the base, which, in turn, must be firmly fixed to the frame. Do not forget that your machine will have to withstand very serious loads, so do not spare time and effort on maximizing the strength and massiveness of all its elements and, most importantly, the strength of their connections. To do this, for example, the template can be additionally fixed on the frame with a yew. The yew will grab a piece of timber that needs to be welded to the back of the base.

Variety of curls: removable designs

A modular volute differs from a monolithic volute in one way: together with a tightly welded steel template, holes are made in the base for attaching different templates. For such a machine, you need to make the same base on a massive frame and several removable modules.

This type of cold forging machine consists of the following parts:

• rectangular base made of thick metal sheet, thickness from 4 to 10 mm;
• collapsible template, can consist of several parts on hinge pins;
• rotating shaft;
• drive lever for rotating the shaft.

Such a snail must be attached to the base by means of fixation through drilled holes in different positions. The assembled parts of the curls on the base change, resulting in the curls receiving different curvatures. The steepness of the arc is also regulated by special screws on the connecting hinges.

To be honest, it is very, very difficult to make such a “hinged” option yourself. Most often, craftsmen do the following: they buy ready-made stamps, which are attached to a frame with a base.

Don't ignore the drawings! You can, of course, apply a curl pattern directly to the base without any calculations - “don’t sweat it.” Newbies often do this. But if you claim to be a master and want to make a snail for cold forging with your own hands of high quality, you will have to make drawings with calculations of dimensions and other parameters.

Drawings will be useful to you not only during the manufacturing process of the machine. They will be an extremely useful aid in calculating the materials that you will have to spend on one way or another. Preliminary product drawings will help you calculate, for example, the quantity and cost of metal rods.

Cold forging on a snail remains the most popular type of metal work among amateurs. At the same time, this craft can be practiced professionally. And if for a hobby a homemade machine will be enough for you, then for professional forging you will eventually need a more powerful tool. Good luck to you at the beginning of a long journey.

Source: https://tutsvarka.ru/kovka/ulitka-dlya-holodnoj-kovki

Snail machine for cold metal forging: drawings and instructions

Using a snail device for cold forging, you can make shaped and beautiful metal parts with your own hands. A homemade snail machine is quite easy to assemble, so any home craftsman can make it, even with little skill in this work.

In the article we will look at the advantages of cold forging, and also tell you how to make a tool for work yourself - a template, drawings, photographs and videos can help you in your work, and as a result you will be able to assemble a simple and useful device for working with metal.

Features and advantages of cold forging

Cold forging is the most popular type of work, due to the fact that it can be used to produce original parts of various sizes and shapes. Using a cold forging machine, you can make:

• decorative lantern;
• fencing for flower beds;
• railings;
• original fence;
• bench handles and so on.

What these elements made using this process look like can be seen in numerous photos.

The advantage of cold forging is that it is very easy to assemble a machine with which you can make these parts with your own hands. This will significantly save on the purchase of expensive equipment.

The cold forging process consists of three stages:

• bending;
• pressing;
• welding of individual elements.

The equipment required for this job is quite compact and simple, and does not take up much space in the garage or workshop.

Cold forging process

Cold forging is usually where beginners begin to learn metal processing, since this process is quite safe and simple, since in this case you will not have to deal with high temperatures, as with other types of forging.

For this process, as a rule, a ready-made template is used , namely, product blanks. Naturally, cold forging also has its own nuances, usually they consist in the fact that the part is easy to deform or damage during operation: forged products often break, and there is no way to correct this situation, so forging must be done very carefully.

But, with the help of a high-quality machine and a drawing of the future product, you can easily learn how to make products with wavy, twisted and other original shapes. The procedure for processing parts using cold forging takes place in several stages. First, create a drawing or template for the future product.

It is necessary to calculate the dimensions of the part in order to purchase the required amount of raw materials, as well as to correctly adjust the machine. Different machines may provide different possibilities for making patterns - this will depend on the complexity of making the fixtures. For example, the simplest machines, assembled with your own hands, can only bend parts , while using more complex designs you can create patterns and other products.

Then, when the drawing or template is prepared, you need to stock up on the required amount of raw materials in accordance with your calculations. For cold forging you will need metal rods; they can be purchased at the store. The rods must not be very thick, otherwise they will be difficult to bend. The next stage is the production of parts.

The most important thing here is to set the settings correctly so that during operation of the machine the parts do not become deformed or damaged, since this cannot be corrected.

At the very end, the manufactured parts are attached to the frame. This is done by welding. You need to be especially careful when welding with thin-walled tubes, since they are quite easy to burn through, in which case the design will be faulty and you will need to do everything again.

But before you start cold forging, you will naturally need to make the machine that is required for this. The “Snail” machine is the most popular device for making metal patterns using cold forging.

Making the “Snail” machine

The procedure for assembling a machine has several stages, after completing them in order, you will have a ready-made device that you can use to create figured products for your home or cottage.

Before you start cold forging you need to make a drawing and template . It is made on graph paper, which reflects the natural dimensions of the upcoming product. On paper, you need to start a spiral with gradually increasing turns.

The turns need to be increased taking into account the pitch if you decide to make symmetrical products, but if this is not important to you, then the turns of the spiral can be increased disproportionately.

Before assembling the “Snail” machine, you need to make a drawing and determine the diameter of the workpieces that you will then process on it. The pitch must be selected taking into account this value: it must be larger than the cross-section of the rod being processed.

If the step is not large enough, then you simply will not be able to remove the product from the machine without damaging it. That is, all the work will be done in vain. The working surface of the snail can be made with your own hands from a sheet of metal with a thickness of 4 millimeters . The dimensions of the surface will depend on the size of the product you need to process - you must first make a drawing so that all dimensions can be calculated.

To make the mold, strip metal with a thickness of at least 3 millimeters is usually used. So, it’s much easier to work with a homemade snail. In order to facilitate the procedure, it is necessary to secure one edge of the workpiece so that it does not slip off.

As a retainer, you can use a cut part of the rod, which is not inferior in size to the strip. During the cold forging process, it is also necessary to fix the part to the workbench. Since during cold forging the force on the part is quite large, it is worth thinking about fastening it separately, since you will not be able to hold the product yourself - it can jump out and ruin all your creative fruits.

The remaining elements of the snail are very easy to make - the main thing is that before starting the independent process, you need to watch the video and use the drawing. The machine you assemble can be either collapsible or monolithic - determine in advance which design will be more acceptable to you, and draw up a drawing to carry out all the work using it.

1. If you need a homemade snail machine to be made monolithically, then weld the structure onto the working platform so that all parts are stationary. The most important thing with this type of construction is to securely and correctly fix the end of the product that you are going to process.
2. If you decide to make a collapsible machine for cold forging, then in this case it is necessary to make mounting holes on the working platform, with the help of which you can connect the “body” of the structure to the platform.

A removable machine is good because, if necessary, it is more convenient to move it, or remove the structure in order to repair or replace damaged elements - with a monolithic type of structure, you will not be able to do this.

But with a removable structure, the quality of fastening the parts will be much worse - you will need to constantly adjust the threaded connections yourself, since they will inevitably weaken during operation.

There are other types of machines for cold forging, but the “Snail” type design is considered the most functional, and it’s quite easy to do it yourself.

Price issue

If you want to use a snail as a tool for your hobby, then you need to take into account that, although the design itself will not cost you much (it does not need any specific tools and parts), cold forging still implies certain expenses.

Since, you will need to spend money directly on the materials that you will use in the future. And the larger the product is supposed to be, the more money you will need to spend.

In order to estimate costs, always create a preliminary drawing of the product , which displays its actual dimensions. For example, to make an average flower stand, you will need to spend at least 3,000 rubles on rods.

You can calculate how much material more complex products will require on your own.

The price will also depend on the complexity of the product that you plan to create using a snail - the more complex elements it contains, the more expensive the design will be for you.

You will not need to spend a lot of money on tools directly for the machine itself, but if you have never assembled such structures before, then it is advisable to purchase ready-made equipment for it - in this case, the machine will serve you much longer, and you will be able to work on it much simpler.

For finishing after forging, you may also need certain products - at a minimum, you will need to purchase paint and primer in order to give the product an attractive and finished look.

Despite these costs, cold forging, using a snail, is still the most popular and affordable method for metal processing. You can do this work both for your own needs and at a professional level, but in this case, over time you may a more powerful machine is needed.

Source: https://stanok.guru/stanki/kovochnoe-ustroystvo/kak-sdelat-stanok-ulitka-dlya-holodnoy-kovki-chertezhi-i-instrukciya.html

DIY cold forging snail

Since ancient times, hot forging has been known to mankind. The workpiece, heated to increase ductility, was subjected to molding by blows of a heavy hammer. This is how they received weapons and tools, household utensils and jewelry.

Hot artistic metal forgingForging

Hot forging requires highly qualified and experienced blacksmiths, large amounts of labor, materials and complex equipment. Cold forging allows you to produce products from square and round steel without installing expensive and bulky equipment and without setting up complex technological processes.

Cold forging method

The method involves using an important property of metal - plasticity. With the help of various mandrels and mechanical devices, the rod is bent in different directions, twisted, and forms various three-dimensional shapes.

As additional processing, welding and metalworking operations are used to connect parts of workpieces. Entry-level machines are quite simple and are driven by the muscular strength of the master working on them.

The technology is quite accessible for mastering in a home workshop.

The minimum set of forging equipment for cold forging of metal includes:

• Bending machines, or Gnutiki, are used to bend workpieces at a given angle and radius.
• Twisters, or torsion bars, are used to twist a workpiece (or group of workpieces) around the longitudinal axis
• Wave - used to create periodic bends in different directions.
• Snail forging machine - used to create spiral-shaped curls at the end of a rod.

Cold forgingTwister for cold forgingWaves for performing wave-like bending of the workpieceBend for cold forging

Is it possible to master cold forging yourself? Yes, it is enough to have basic skills in metalwork, design and machining.

Many home craftsmen have made a snail - a cold forging machine on their own, without using expensive components.

Types, structure and principle of operation of the cochlea

Several varieties of the popular machine are used. All of them, regardless of the details of the cochlea device, use a general operating principle. A strip or rod of metal is forcefully pressed against a stationary template or against a movable ploughshare of the snail, forcing it to take the shape specified in the drawing.

Monolithic volute for cold forgingRemovable volute designDismountable volute with rotation

There are:

• monolithic non-separable volute using a fixed metal template. Used to produce series of identical products
• removable design - bending is carried out around pins inserted into holes on a solid plate. Suitable for the production of unique parts with complex configurations, the cross-section of the rod is limited.
• Collapsible volutes with rotation are more complex in design, but make it possible to obtain identical products of complex shape with great accuracy

Drawings of a snail for forging

Novice craftsmen often neglect the importance of the design stage and make templates for cold forging by eye. This may be enough to “feel the metal” and understand the essence of the process with your own hands.

Drawing of a snail for forging

But if you want to get beautiful products as a result, and even more so if you are planning to produce a series of identical elements, then when manufacturing a machine you cannot do without accurate calculations of all parameters - bend angles and radii, torques, maximum forces and others. An accurate calculation will allow you to create with your own hands a high-quality snail machine for cold forging, which will last a long time and will delight you with ease of operation and high-quality aesthetic products.

Source: https://stankiexpert.ru/stanki/kuznechnye-stanki/ulitka-dlya-kholodnojj-kovki-svoimi-rukami.html

Cold forging, do-it-yourself machines and drawings

Forging machines are a good tool for artistic and creative people who have a desire to create something beautiful and individual in their home, to highlight the interior, or to make a good DIY gift for important people. There are two ways to forge metal.

To forge something using the hot forging method, you need to make a lot of preparations and actions, so at home the easiest way to forge it by hand is to use the cold forging method.

The learning curve for this process does not take much time, and there is a real opportunity to design a machine with your own hands.

DIY cold forging machines.

The beginning of cold forging with homemade machines

Cold forging with your own hands requires two mandatory actions - pressing and bending. To perform all these actions, it is not necessary to apply a certain temperature to the metal, but it is still necessary to carry out heat treatment.

To design something with your own hands, it is no longer necessary to have special machines for artistic forging; now you can create machines for forging metal at home. But you still can’t cope with such tools without experience. For all the work to be successful, you need to use metals of a certain thickness.

A homemade cold forging machine can easily be used to create structures that will be much stronger than those made by stamping. Do-it-yourself forged products will turn out to be of high quality when everything is done correctly and without errors, because it is very difficult to correct them. After a few jobs, with the experience gained, you can begin to make excellent designs using homemade cold forging machines and fixtures.

When manufacturing a large number of identical metal structures, it is best to use drawings prepared in advance. Drawings for do-it-yourself cold forging machines are prepared in advance.

In some cases, it will be better to warm up the part in order to get rid of defects in the future. Those who have recently started using homemade machines for cold forging should first think through a work plan, as well as acquire the necessary skills.

The help of various video lessons on the Internet, as well as special courses, will not be superfluous here.

Homemade machine for cold forging.

Machine components and required tools

A do-it-yourself forging machine consists of certain devices. Among which must be:

1. gnutik;
2. snail;
3. wave;
4. globe;
5. twister;
6. flashlight;

These devices are best to use. You will need a do-it-yourself cold forging snail to weave steel rods. You can look at the photo to better see the design and an example of parts. Forging equipment for cold forging of metal plays an important role in the work. The main tool during the work will be a bender. This is a very simple element.

We make a machine.

To process pipes with hexagonal and round cross-sections, a “wave” is used. A “flashlight” is used to bend metal rods, and a twister is somewhat similar to it, a very convenient device. A globe is made into a large arc of profile rods.

Cold forging machines are most profitable to do yourself, because not everything can be processed with hand tools, and the price for an artistic forging machine is very high.

When a master, using his skills and equipment, creates a design, it will be unique and special, even if in some ways it will not be as high quality as the factory one. When manufacturing a large number of parts, it would be correct to create a coductor on an electric motor. This makes the work process easier.

A do-it-yourself cold forging machine must be suitable for types of work such as bending, twisting and drawing.

During the drawing process, the structure takes on a certain shape. Therefore, it must pass through the press, after which the cross-section of the primary material will become smaller. By flexible we mean creating a bend at the desired angle. For this you will need templates.

Photos of drawings of forged products with your own hands are prepared in advance from which the template will be made. The curl is attached to the steel plate, and the sheet itself is secured in the machine holder. A slot is placed at the end of the workpiece, and the other end is secured in place.

Using a lever, the end of the structure is influenced, which must be carried out along each bend of the plate, which is used as a template.

DIY cold forging machines

Many experienced manufacturers assemble simple mechanisms with their own hands, which allow them to create unique designs. This is influenced by work experience. Drawings for do-it-yourself cold forging machines can be found in sufficient quantities on the Internet, as well as photos of cold forging products that can be obtained in the end. A photograph of such equipment allows the master to complete the drawing from scratch, if he has experience.

You can consider the “Snail” machine. Using it you can create various spirals or waves. To create such a machine, you need to have drawings for a do-it-yourself cold forging machine of this type, and also do everything in accordance with the technology.

The working surface must consist of sheet metal. 4 mm thickness will be enough. Dimensions are set based on the size of the part. To give the shape, sheet metal 3 mm thick and in the form of strips is required.

It is bent according to the template with pliers and a spiral is obtained.

To create a normal work process, you need to firmly fix one of the ends of the part. A rod equal to the width of the strips will help with this. To secure the work platform you will need to use a workbench. The main goal of everything is to give maximum immobility to the part, because during cold forging you need to put in a lot of effort.

Before starting the manufacture of any cold forging machine, using hand-made tools, you need templates, sketches and various drawings, including a drawing for do-it-yourself cold forging equipment.

You can make your markings more accurate by using graph paper. You need to draw a spiral on it, where the turns in the radius will increase. Equal distance must be properly maintained between them. This condition will be mandatory only for creating symmetrical patterns.

Cold forging machine.

Machine design

To create any machine, you can use several options to choose from - collapsible, monolithic or solid.
It is recommended to weld small rods along the entire length of the machine. For this purpose, it is worth drilling special holes at the work site. It is necessary to securely secure the ends of the parts that will bend. This forging method is very popular among blacksmith beginners.

Using a machine for cold forging of metal made by hand, an inexperienced craftsman will be able to make forged balcony canopies, handrails for stairs, various window grilles, fences, numerous home furniture, fences, various forged accessories and decorative items that complement the interior of the premises, on similar to grates for fireplaces. This is a good option for beginners.

Drawing for a snail with a ploughshare

The drawing shows the device of a bending scroll with a plowshare and the rules for working with it.

Drawing of a snail machine with a ploughshare.

Detailed drawing of a snail machine.

Drawing of a snail machine.

Drawing of a device for bending a “Clamp”

Drawing of cold forging devices for bending clampsDrawing of cold forging devices for bending clamps

Drawing of the Gnutik device

This is how Gnutik looks schematically. Drawing for creating Gnutik.

cold forging equipment for small businesses

Source: https://1builder.ru/xolodnaya-kovka-stanki-i-chertezhi-svoimi-rukami.html

How to make a snail for cold forging with your own hands?

Using a machine [snail for cold forging], you can make beautiful shaped metal parts with your own hands.

A homemade snail is not that difficult to assemble, so even someone who has little experience in such work can make it.

In the article we will analyze the advantages of cold forging, and also tell you how to make a tool for working with it yourself - drawings, a template, a video and a photo will help you in your work, and as a result you will receive a useful and easy-to-use tool for working with metal.

Pros and features of the process

Cold forging is a popular type of work due to the fact that it can be used to create unusual parts of various shapes and sizes.

Using a cold forging machine, you can make a fence for a flower bed, a decorative lantern, an unusual fence, railings or handles for a bench and other elements. You can see what the parts created through this process look like in the photo.

Another advantage of cold forging is that it is quite easy to make a machine with which you can create such parts with your own hands. This will help you save on the purchase of expensive equipment.

The cold forging process consists of three main elements: bending, pressing and welding of parts. The equipment needed for this process is quite simple and compact, you can do it yourself and it will not take up much space in your workshop or garage.

You can start learning metal processing with cold forging, because... this process is easier and safer because you don't have to deal with high temperatures like other types of welding.

For this process, a ready-made template is usually used - that is, blank parts.

Of course, cold forging has its own subtleties, they mainly consist in the fact that the part is easily damaged or deformed during the process: forged elements often break, and the defect cannot be corrected, so forging must be done very carefully.

However, using a high-quality machine and a drawing of the future part, you can easily learn how to create products with twisted, wavy and other unusual shapes. You can see the options in the photo above.

The process of processing blanks through cold forging occurs in several stages. The first step is to create a template or drawing of the future design.

It is necessary to calculate the dimensions of the product in order, firstly, to purchase the required amount of material, and, secondly, to properly configure the machine.

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Different machines provide different possibilities for creating patterns - this depends on the complexity of making the tool.

For example, the simplest do-it-yourself machines can only bend products, while with the help of more complex models you can create patterns, etc.

After the template or drawing is ready, you need to buy the required amount of material in accordance with your calculations. For cold forging you will need iron rods, you can buy them in the store.

Rods for cold forging should not be too thick, otherwise they will be difficult to bend. The next stage is making the parts yourself.

The most important thing here is to set the settings correctly so that during operation of the machine the parts are not damaged or deformed, because it will be impossible to fix the problem.

Lastly, the completed parts are secured to the frame. This happens by welding.

You need to be especially careful when welding with your own hands with thin-walled tubes, because... It’s easy to burn through them, and then the design will become faulty and you’ll have to do it all over again.

You can watch the entire forging process in the video before you start working on your parts.

But before you start cold forging, you, of course, need to make the machine that is necessary for this. The “Snail” machine is the most common apparatus for processing metal products using the cold forging method with your own hands.

You can see all the stages of creating the machine in the video - there is nothing complicated about it, and almost everyone will be able to cope with this task themselves.

Creation of a machine

The manufacturing process of the machine has several stages, after completing which one after another, you will receive a ready-made tool with which you can create figured products for your dacha or home.

Before you start cold forging, you need to make a template and drawing. It is performed on graph paper, which can reflect the exact dimensions of the future product. On it you need to depict a spiral with increasing turns.

The turns should increase in accordance with the pitch if you want to make symmetrical products, but if this is not important, then the spiral turns may increase unevenly.

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Before assembling the machine, you need to decide on the diameter of the workpieces that you will process on it. The step must be selected based on this value: it must be larger than the diameter of the rod that you will be processing.

If the step is not large enough, then you simply will not be able to remove the parts from the machine without damaging it. Thus, all the work will be done in vain.

A homemade working surface of the snail can be made of sheet metal with a thickness of 4 mm. The size of the surface depends on the size of the part you will be processing - you need to first draw up a drawing so that all dimensions are clear.

To make the mold, use strip metal that is at least 3mm thick. This way, the homemade snail will be easy to work with. To make the process easier, you need to fix one of the edges of the workpiece so that it does not slip out.

Sketch of a machine for a snail: Figure 1: 1- driving share of the snail, 2 - main axis, 3 - levers for applying force, 4 - clamp for the workpiece; Figure 2: 1 - volute share, 2 - machine platform, 3 - pressure roller, 4 - lever for controlling the pressure roller, 5 - fastening of the platform, 6 - finger for fixing the volute shares, 7 - groove along which the pressure roller runs, 8 - axis of the pressure roller control lever, 9 - spring for attracting the roller; Figure 3 - operating principle of the device: 1 - the snail rotates; Figure 4 - examples of products made using a snail.

For the retainer, you can use a cut rod part that is the same size as the strip. During cold forging, you also need to attach the part to the workbench.

Since during cold forging the impact on the part is quite strong, you need to think about fixing separately, because You won’t be able to hold the workpiece with your own hands - it can slip and ruin the whole job.

The remaining parts of the snail are quite easy to assemble - the main thing is to use the drawing and watch the video before starting the process yourself.

The machine you make can be either monolithic or collapsible - decide in advance which design will be more convenient for you, and make a drawing to carry out all the work in accordance with it.

If you want your homemade snail to be monolithic, then weld the machine onto the work platform so that the elements are stationary.

The most important thing with this type of construction is to correctly and securely fasten the end of the part that you will be processing.

If the machine for cold forging is planned to be dismountable, then landing holes must be made on the working platform, with the help of which it will be possible to connect the “body” of the machine with the platform.

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The removable design is good because it is more convenient to move it, if necessary, or remove the machine to replace or repair damaged parts - with a monolithic type of structure this will not be possible.

However, with a removable machine, the quality of fixing parts will be worse - you will have to constantly adjust the threaded connections yourself, because with use they will inevitably become weaker.

There are other options for machines for cold forging, but the “Snail” machine is the most functional, and besides, it’s easy to make it yourself. How to make it, as well as other product options, watch the video.

If you decide to use a snail as a hobby tool, you should take into account that, although the device itself will not cost you much (it does not require any specific parts or tools), cold forging does involve some expenses.

Firstly, you will have to spend money on the materials themselves that you will process. And the larger the product is planned, the more money you will have to spend.

To estimate expenses, always make a preliminary drawing of the product, which reflects its actual dimensions. For example, to make a small flower stand, you will need to spend at least 2,000 rubles on rods.

You can calculate how much material more complex products will require yourself.

The cost will also depend on the complexity of the pattern that you will create with the help of a snail - the more complex it is, the more expensive the product will cost you.

You won’t have to spend a lot of money on tools for the machine itself, however, if you have not previously made such tools, then it is better to buy ready-made equipment for it - in this case, the machine will last you longer and it will be easier to work on it.

For final processing after forging, you may also need some funds - at a minimum, you will have to buy a primer and paint to give the part a finished, attractive look.

Despite these expenses, snail forging is still an affordable and popular metalworking tool that can be done as a hobby or on a professional basis, but in this case, over time you may need a more powerful tool.

Source: https://rezhemmetall.ru/ulitka-dlya-xolodnoj-kovki.html