How to make a manual cold forging machine with your own hands - instructions
This type of working with metals is more popular among “home” craftsmen, if only because it does not involve heat treatment and, therefore, the installation of a forge. And this matter is both more complex and troublesome. And the technology for manufacturing various patterned parts is much simpler, since there is no such thing as “overheated” or “underheated” material.
In principle, cold forging can be performed using hand tools - special equipment is not always necessary. All you need is an anvil and a hammer. This way you can work with almost any workpiece - sheet iron, metal strip, rod or pipe. It all depends on the complexity of the part and the skills of the craftsman. By the way, as an option - a regular pipe bender, which can do a lot of things.
But in most cases, especially for passionate people, or if the business is on stream, it is advisable to use a cold forging machine, even a home-made one, since not every sample can be processed with a hand tool. And the range of possibilities is expanding significantly. There are many corresponding devices on sale, but their prices are steep.
For example, the cost of the cheapest universal block (forging and bending) is approximately 120,000 rubles. And this does not take into account accessories, which, depending on the configuration, will cost another 7 – 10 thousand. Even the simplest machine for a “snail” cannot be found for less than 65,000.
You can assemble simple mechanisms on your own, which, nevertheless, allow you to obtain the most intricate patterns. It's all about the skills of the person who will work. Let's consider one of the models, without indicating the material used, dimensions and other subtleties. The main thing is to understand the principle of the device, and the home master will select everything else himself. Moreover, a person who has no inclination to engage in such “construction” will not be interested in this.
With its help you can make rings, spirals, “waves” and various “curls”. The machine manufacturing process includes several stages.
Sample
To obtain greater marking accuracy, it is advisable to use graph paper. A spiral is drawn on it, with a gradual increase in the radius of the turns. The condition is that the distance between them (step) must be the same. But this is if symmetry of the pattern is required (although each person has his own concept of the “artistic value” of the work). The same applies to the number of turns (as a rule, there are no more than 4).
Working surface
A piece of sheet iron is used. Its sufficient thickness is 4 mm. Linear dimensions are determined based on the expected dimensions of the parts being manufactured.
"Form"
For it, you can take, for example, strip metal 3 mm thick. This will allow you to work with it using hand tools. It bends into a spiral according to the markings of the template. This is easy to do using a pair of pliers.
Additional items
To ensure the working process, you will need to fix one end of the workpiece. Therefore, you will need a piece of rod (equal to the width of the strip). In addition, the working platform will need to be secured to something (for example, a workbench). As such a stand, you can prepare a 10-centimeter piece of pipe (thick-walled, of course). Although there are many options here, since a structure installed in this way can interfere with other types of work.
For example, provide for securing the entire assembly in a “powerful” vice. Therefore, instead of a pipe, you can take a hexagon (large diameter nut or something similar). The main thing is the reliability of the fixation, given that during cold forging you will have to make significant efforts.
Machine assembly
There are also many options here. It can be made either “monolithic” or disassembled into its component parts. In the first case, the “snail” (or its individual parts) from the strip is simply welded to the site. For example, in this situation:
You can “weld” pieces of the rod along the entire length (1 cm each) at intervals of 4–5 cm, and drill mounting holes for them in the working area.
We considered only one of the simplest options. In order to have a more complete understanding of all the possibilities of devices for making “snails” and similar products, it is advisable to familiarize yourself with the relevant industrial equipment. And a savvy person will always figure out how to make the necessary device on his own, from scrap material. An interesting option is shown in the video:
In practice, you often have to bend workpieces into a “snake”, but doing this by hand is quite difficult. Such machines are called “torsion bar”. In addition to the fact that considerable effort will be required, it is necessary to maintain uniform rotation. This means that such devices for cold forging will have to be equipped with an electric drive. You can read the complete list of equipment for cold forging in this article.
Source: https://ismith.ru/equip/samodelnyj-stanok-dlya-xolodnoj-kovki/
How to make a snail - cold forging machine
If your hands are growing from the right place, then it is only natural that your workshop will require some equipment for the work process. One of them is the “Snail” cold forging machine, which will not be difficult to assemble with your own hands if you have drawings and dimensions at hand, and photos of similar designs on the Internet confirm the ease of assembly.
“Snail” design
This unit will greatly simplify the work process. Also, with it you can change metal beyond recognition and create products of extraordinary beauty and practicality.
Application and equipment features
Products created using forging technology often cost a lot of money, but look quite noble and expensive. They decorate estates, interiors, and are used as gates. Artistic style helps make forging more sophisticated and creates the same product in different versions.
Forged product options
Few people know that forging is not only hot, but also cold. The second option is quite possible to easily use in any home environment. It is enough to create equipment suitable for this - a cold forging machine.
But cold forging can include two types of work.
- Hardening is hardening, which is carried out thanks to numerous blows that have great power. This leads to a change in the structure of the metal and leads to the formation of the desired shape and size. A hammer is used here, the production of which does not require much time and effort.
- Bending - the structure of the metal and its characteristic indicators cannot be changed. To engage in this type of forging, you need to build a homemade machine.
The last option is distinguished by its simplicity when it comes to the technological process. Next, we’ll look at how to make a cold forging machine with your own hands, drawings and videos of which you will find below.
cold forging machine
Self-production of the device
If you are determined to create this device in a home workshop, then you need to initially prepare a drawing. The ideal option would be to use a template, which has a maximum of options for creating various shapes and figures. When you have such blanks available, then creating a machine with a sufficient number of removable attachments will allow you to further create intricate and varied patterns and all kinds of metal monograms.
Cold Forging Machine
When you are building a home machine, follow a certain sequence of work so that the result is as perfect as possible.
- Take a metal sheet. Templates should be placed on it with production in mind. After all, during operation, the raw material itself from the nozzles can move due to lack of space. It can also be problematic to work with very small template indents from each other.
- To make changing attachments easy and simple, form a rectangle-shaped slot. Here you will place the replacement attachments, which you will attach to the rectangular plate in advance. You will secure such plates using bolts of the appropriate size.
- Templates can be made elementary or complex. You can have a pattern with one curl or an element with curls in different directions. It all depends on your skill.
Blanks for the machine
The main thing is to use the most durable material to secure the parts that move apart.
Drawing of a snail machine
You don’t need a special tool; creating a snail machine is quite simple. To make it, follow these steps.
- Rack assembly. It is the supporting element in the entire structure. To make it, identical sections of pipes are taken, which are connected using joints. From the outside, the stand somewhat resembles a stool. Using a welding machine, it is necessary to connect all parts of the rack.
2. Metal sheets must be cut in accordance with the drawings. As a result, you will get 4 equilateral triangles and circles with equal diameters.
3. The triangles are welded to the bottom of the support to form a pyramid. The base (the widest possible area) is welded to the center of the cut circle.
4. Use a drill to form holes for the bolts. Using them, attach them in a horizontal position to the circle with the welded part of the strip (four pieces).
5. Formation of the handle. To do this, you need two rods with different lengths (correlate the length with the dimensions of the circle itself) in the following ratio:
- the first one corresponds to the diametrical value of the circle;
- the second is slightly longer than the first.
6. Bend the first rod at an angle of 300, then the second rod is welded to the first. An additional rod is attached to the bottom. It is important not to forget to insert a jumper between both rods (attach a lever to it using a welding machine). The lever will provide movement in the direction of the rod formation.
7. The bearing is attached to the lever and the segment at the bottom, which increases its variability. The metal coil will be attached with a cut at the top (for this it is placed horizontally and allows you to bend the metal). From the bottom of the section with a free end, you need to make a hole that corresponds to the cross-section of the pipe.
8. The final step is to attach the handle to the “pyramid” part of the structure. The connection is made using a nut with a large diameter. Before fastening, a round piece is welded to it to secure the stencil.
Built snail machine
Therefore, you can assemble a “snail” cold forging machine according to the drawing and size with your own hands, as in the photo, in a home workshop, without investing huge amounts of money. After this, you will be able to create real masterpieces from metal.
snail, cold forging
The material was prepared by the editors of the website mainavi.ru
Source: https://mainavi.ru/instrumentyi/ulitka-stanok-dlya-holodnoy-kovki/
Do-it-yourself artistic forging machines - Website about
If you have purchased a plot of land, be it a house or a dacha, the question of registering the plot always arises. One of the most beautiful pieces of jewelry that shows the owner’s self-sufficiency and good taste is forged items. It can be either just a forged barbecue or entire compositions of forged products.
From forged metal you can make gazebos that are striking in their beauty; a bench or staircase will fit perfectly into any interior. Forged fences are made, even balconies. You can make a railing on the porch.
Today you can make all this beauty yourself; it is not difficult, as it might seem at first glance. The fact is that these things can be created without resorting to the services of a forge. You can use DIY cold forging machines right at home. And photos of forging clearly illustrate the results.
Types of forging machines
For cold forging work, special machines are used. Moreover, each curl or bend requires its own machine for cold hand forging. They are:
- With manual drive;
- Electrically driven.
The first ones are used when it comes to small amounts of work. They are easier to create. Their downside is low productivity. Drawings of a forging machine with your own hands will clearly show the entire process of their assembly.
The latter will be necessary if we are talking about the continuous production of forged products. They have much higher productivity, and do not need to exert physical effort - the drive is carried out by an electric motor.
For those who are just taking their first steps in making forged items, it makes sense to start with a machine called “Snail”. A do-it-yourself forging snail will be an excellent assistant when making a gate and a bench.
If the first steps have been completed and there is an interest in developing the chosen direction, you need to move on to mastering the torsion bar machine. With it you can achieve the use of non-standard approaches to the execution of forged products. Your things will acquire individuality - you can diversify the products produced.
Cold forging stages
- Although the process of making forged items is very exciting, you need to remember that this process must be carried out in a certain sequence.
- To understand the sequence of technological actions, you need to know the stages of forging or the elements of forging yourself:
- Draft.
- Broach.
- Firmware.
The draft is necessary to increase the existing metal workpiece from the side by reducing the height. It is performed under fairly high pressure.
Broaching reduces the cross-section and increases the length. The workpiece needs to be heated, then “passed” with a hammer.
Piercing is the creation of holes inside a workpiece. The holes in the workpiece itself can be made of different sizes and diameters.
After the stages of upsetting and broaching, the structure of the item becomes more fragile. It is important to take this into account in the future and be extremely careful when working with the product, since the item can simply be broken.
Step-by-step instructions for forging
All forged items can be made with your own hands right at home. It will not be possible to make special patterns, however, you can make all the basic elements yourself. It is important to follow all stages and technology.
There are several technological stages:
- Checking all calculations. Even minor inaccuracies can spoil the entire final result. Correcting errors will be very difficult, and often impossible.
- Assembling a decorative composition.
- The elements are fastened together by welding. However, it is important to remember that it can cause damage to small decorative elements.
- Processing of the resulting product - by sanding and painting the entire resulting product.
Disadvantage of cold forging
The only disadvantage of cold forging is the inability to correct errors during the process. If the workpiece is damaged, then it will have to be thrown away, at best, as scrap metal, or kept as a souvenir and used for training in the future.
The whole point of cold forging is that the metal is not heated, but is bent by processing in a “cold” form. This is how the metal is given the desired shape.
The advantage of cold forging is the absence of the need for special equipment, as well as the absence of the need to use fire-hazardous equipment; the manufacturing conditions are acceptable for any person with any health. The use of high temperature conditions is not required.
DIY forging photo
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Source: https://nzmetallspb.ru/stanki/stanki-dlya-hudozhestvennoj-kovki-svoimi-rukami.html
