Magnetic welding holders

7 types of magnets for welding and fastening mechanisms: what do you need to know to make the right choice?

Often the welding process itself is less lengthy than the preparatory work for this operation. As a rule, the lion's share of time is devoted to fixing all connected components in the required position. This factor is the most important, as it directly affects the quality of work.

For example, if after a long assembly of segments of the structure being welded, it falls apart from contact with the electrode or the welding is performed unsatisfactorily, then a lot of time will need to be spent on restoration operations. To prevent annoying situations and make the specialist’s work easier, additional devices were invented - magnets for welding.

Purposes of use

Magnetic fasteners are used to achieve the following purposes:

• Convenient fastening of parts and simplification of their installation;
• Correct positioning of the planes to be welded;
• Fast assembly of structures;
• Setting certain angles for connected products;
• Accurate and precise welding to avoid gross mistakes;
• An effective replacement for bulky clamps and clamps.

Welding magnets allow you to adjust the fastening and assembly of elements in accordance with operating conditions. They have an adhesive force of 10 to 50 kilograms and make it possible to work with both shaped products and sheet metal. The main advantages of such devices are such important factors as reducing the period for preparing products for welding and reducing the labor intensity of the work process.

Types of magnets for welding

The main task of welding work is to create a seam whose characteristics are not inferior to the quality of the material of the parts being joined. To achieve decent performance during the work process, it is necessary to use various types of devices and devices.

Here are 7 of the most popular ones:

• Magnetic corners. This device is a structure of two metal plates and a magnet between them. A round hole is cut in the middle of the device. Magnet angles can be fixed or adjustable.
• Switchable magnets. This fastener allows you to fix the parts to be connected using a magnetic field activator. After completing the welding operations, a device of this type can be removed with one turn of the switch. The magnet is quickly and easily cleaned of chips and metal particles.
• Clamps. A device of this type allows the elements to be welded to be pulled together. Its outer side is used as a fixing component, and its inner part as a clamping device. Using such a device is quite simple - the products to be connected are placed in a clamp and then tightened with a screw.
• Spacers. This is the simplest device that allows you to correct edge defects in assembled products. They are able to give parts the required shape and eliminate local imperfections. The principle of operation of the spacer is similar to the functioning of the clamp, but unlike the latter, it works not to tighten, but to unclench.
• Installation magnets. This device may have a monolithic form or have a complex design with the ability to change angles. It is designed to install working elements in a specific position. The parts to be connected are fixed in the required position and then welded into the finished product. One of its functions may be the ability to disable fasteners. After pressing the shutdown button, the magnets of the device reduce their impact, and the device can be easily moved to another location.
• Fastening devices. These devices are designed to fix the parts to be welded in the required position. This is done in order to prevent displacement or deformation of the products. Such devices include clamps, clamps and ties.
• Installation and fastening products. Devices of this kind carry out an integrated approach to installing parts to be welded in a certain position and their subsequent fastening. In this case, it is enough to place the products in the device and tighten them together using screws. Parts can be fastened in one or two planes. To make it convenient to remove the structure after welding, one of the fastening elements is made in the form of a rotating mechanism.

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Source: https://voltobzor.ru/svarka/magnity-dlya-svarki

Magnetic corner and other types of mechanisms and devices for welding

Magnetic angles for welding help to fix and install all the required elements on them in the required position. Using a magnetic square makes it possible to save effort and time when working with a welding tool. In addition, the use of a square makes it possible to improve the quality of fastening of workpieces and workpieces.

Welding accessories

Today, there are a very large number of various devices and devices that help facilitate welding work . A special place among these devices is occupied by magnetic welding devices. Their design makes it possible to securely fix the parts to be connected using magnetic attraction.

The most popular among them are magnetic devices for corner welding (the so-called magnetic angles). There are a huge variety of these devices today, and they differ from each other not only in shape, but also in the presence of auxiliary devices (elements) in their design, which help simplify the fastening of different workpieces to each other. In addition, some individual magnetic angles make it possible to change the fixation angle.

During work, magnetic welding angles make it possible to attach such parts to each other as:

• sheet parts;
• frame structures;
• metal stands.

This capability is due to their versatility in the design of the square. If the use of an angle does not make it possible to make the required fastening, then it is used simultaneously with other fasteners.

Among these devices, we can highlight separately the Mag Tab holder , which has two support planes in its design. These planes can change the angle of their position; in addition, they have magnets installed in them, which simplify their attachment to the base.

The clamp is also equipped with two fastening planes, making it possible to fix the parts being processed. They are at an angle of 90 degrees relative to each other and have a low degree of freedom, which allows you to make the necessary adjustments before starting welding.

These magnetic holders have a fairly high attractive force , this makes it possible to create increased adhesive force and static stability of the material being processed during welding.

Other devices for welding

Although a magnetic welding square allows you to simplify the work procedure, at the same time there are also simpler welding devices. These include special clamps and clamps, and their price is much lower. In addition, you can build these clamps on your own, taking into account your personal needs.

These devices can last much longer than magnetized ones , since the presence of elevated temperatures during welding leads to a decrease in the magnetic field. That is, the longer you use the magnetic corner, the weaker it begins to magnetize parts.

Also among the devices that facilitate the welding process are gas lenses. These lenses make it possible to stabilize the gas flow rate during argon arc welding, creating protection for the gas. Gas protection occurs by regulating air access, preventing air leaks and the appearance of excessive turbulence in the gas flow.

These lenses are equipped with a fine mesh mesh that ensures an even flow of gas. The lenses are attached instead of standard collet clamps, and the torch nozzle must also be replaced. As a rule, gas lenses are used for welding titanium or other non-ferrous metals.

However, such a device also has its certain disadvantages . Among the disadvantages are the following:

• Increased gas consumption and reduced viewing angle (visibility) during welding work. Visibility is reduced due to the large diameter of the nozzle, which can create poor welding of the fasteners.
• When welding work with non-ferrous metals, certain working conditions must be observed. For which you will need one more device - a metal casing. The metal casing is also popularly called “boot”; it has the function of additional protection. The boot protects parts adjacent to the welding area from melting.

Such protection is even more relevant during the processing of titanium alloys. This is explained by the fact that if the operating temperature rises above 420 degrees , then molten titanium begins to react with gases. This reaction leads to a decrease in strength indicators and the formation of high brittleness of the metal.

For high-quality operation of the protective casing, its design must be in accordance with the geometry of the element being processed and the characteristics of the burner used. Quite often the casing is made by hand.

Aprons for welding work

In addition to protective covers, elastic aprons can also be used. These devices are used for processing cylindrical parts, since their design makes it possible to bend round shapes. Protective aprons are made from copper foil or thin sheets of copper.

Clamps for welding work

To make the apron more convenient to use, it is used simultaneously with clamps. Clamps help secure the parts being connected to each other.

This is especially true when, after careful and lengthy adjustment of two parts, they diverge even with a slight touch of the electrode.

But this situation can be complicated by the fact that separated elements can be connected to each other, and this will be revealed only after the seam has cooled . The use of clamps helps prevent such situations from occurring and will not lead to further correction of the work.

If welding is used in large-scale production of some parts, then it is more advisable to use special mechanisms that make it possible to easily turn over and conveniently stack workpieces. These devices make it possible to automate the entire work process.

Naturally, to install them at home, they are quite cumbersome and very expensive .

For individual use, devices are most often used that not only make welding work easier, but also facilitate the assembly of all parts and assemblies of the parts being processed.

These devices are divided into two main types:

• installation;
• securing.

Fastening mechanisms make it possible to perform a strong fastening using various clamps.

Installation devices make it possible to place the part in the desired position. These mechanisms include templates, stops and prisms.

But there are also universal mechanisms that combine both securing and installation functions.

Using stops, fastening is done on the main surfaces. The stops can be of a removable or throw-out design and are made of steel plates and bars, which are fixed with bolts. Squares make it possible to rotate parts at a certain angle of 30-90 degrees. Universal mechanisms are considered the most convenient to use. Using them, parts are connected to each other and tightened with bolts. Precise adjustment of parts can be done using eccentrics .

Thus, all these devices allow one person to weld, because the assembly and fixation of elements occurs not during welding, but before it. They can also be used to secure elements during cutting to prevent structural elements from falling.

Source: https://stanok.guru/metalloobrabotka/svarka/magnitnyy-ugolok-i-drugie-prisposobleniya-dlya-svarki.html

Choosing a magnetic angle for welding metal structures - welding magnets-corners for convenient work of the welder

For welding, in addition to working tools, protective devices for the face and hands of the welder, additional devices are also used - they will facilitate the work and allow it to be done accurately and accurately.

Magnetic angles - pure welding gadgets

Any device that simplifies the work has its advantages.

Magnetic holders for welding are a convenient attribute. You can either buy them in a store (for example, in the World of Magnets) or make them yourself.

Warning: the use of homemade, uncertified devices is hazardous to health and may result in defects in manufactured products.

This attribute is useful even when performing simple one-time work; it will facilitate welding of products because:

• Due to the fact that the metal elements are fixed, it is convenient for the welder to work and he gets freedom of action;
• The assembly of a welded structure begins before welding with the fixation of elements, so one person can weld the product - magnetic devices for welding work reduce labor costs;
• Parts secured with welding magnets stand straight and will not move, for this reason a neat weld is obtained:
• When assembling high-precision products, magnets for welding are not only convenient, but necessary;
• With a large number of welding jobs, they reduce the time spent on welding;
• Non-standard parts are securely fastened without additional devices;
• The parts are installed using welding magnets, both horizontally and vertically.

Magnets from well-known manufacturers have a shape that allows you to set angles of 45°, 60°, 90°, 135°, for reliable fastening of parts. A self-made magnet sometimes fell off, but a factory-made product makes it possible to do work at any angle without moving the part.

Types of magnetic holders for welding

For welding metal structures, different magnets are used; they differ in shape and operating principle:

• Simple magnetic corners allow you to install parts at the required angle;
• A magnetic clamp makes it possible to weld structures of any precision and complexity, placing the welded elements at any angle;
• The magnetic clamp is equipped with a switchable or permanent magnet - this allows you to turn off the magnet after welding and remove the clamp without effort;
• Most angles can be installed at different angles - the design allows for welding of varying complexity;
• Different models of angles have different power - for fixing parts with a large mass, and for welding large structures, high-power magnets are required, but for household work and welding small products, low-power welding magnets are needed.

To get good results when welding complex products, you need to simultaneously use different magnetic devices.

Here are the 7 most common:

Magnetic devices. Externally – 2 metal plates connected together, with a magnet installed between them. Angles can be changed or fixed in one position.

Switchable magnets. Allows you to install the parts to be connected by turning on the magnetic field. At the end of welding, it is turned off and removed in one motion. It is easy to remove metal shavings from such a magnet.

Installation magnets. Used to place parts of the structure to be welded in the required position. They may have the ability to turn off, which reduces the impact of the magnetic field and allows you to effortlessly move the device to another location.

Angular constant action

A magnet for welding parts at an angle is a popular device; it is characterized by its low cost and simplicity of design. This device is used to secure metal elements in the desired position when welding various structures.

It allows you to quickly and reliably assemble parts of the product, and will help when working with steel pipes, profiles and angles, and sheet metal.

There are 3 types of magnetic corner for welding:

• Hexagonal;
• Triangular;
• Arrow-shaped.

The hexagonal fixture can be installed at angles in:

1. 30 degrees;
2. 60 degrees;
3. 75 degrees.

Triangular and arrow-shaped devices can be installed at angles in:

1. 45 degrees;
2. 90 degrees;
3. 135 degrees.

These devices facilitate the assembly and welding of products and reduce working time. The downside is that the magnet strength is low, for models in the low price category.

Disabled and enabled

* switchable magnetic angle for welding structures

* includes for welder (switchable, magnet)

The use of switchable and switchable magnets makes it possible to reduce and simplify the installation of metal structures. They have advantages over permanent magnets:

• Easy to clean the switched-off magnet from small metal;
• Possibility of adjusting the location of parts to be welded when the magnet is turned off;
• Reliable fixation of structural elements when the magnet is turned on in a certain place.

The advantage of such a device is that it is easy to remove after tack work, with just one movement. Magnetic corners can be template or universal. Standard products are made with fixed angles, and universal devices make it possible to weld 2 parts of the structure at any required angle.

Attention! The design sometimes includes a V-shaped groove. It includes the ability for the welder to fix even very small metal parts of any complexity.

Advantages of working with a magnetic square

Inexpensive standard products are suitable for amateur work, but for professional welding you need complex tetrahedral and three-coordinate devices - made of heat-resistant magnets.

A high-quality magnetic holder designed for welding metal structures is tensile strength, can withstand heavy loads, and is resistant to mechanical stress.

A magnetic square that has the required power must reliably hold the parts of the structure to be welded - this will make independent work easier and safer.

Recommendation! To make it easier to remove the magnetic device, it is advisable to use switchable magnetic holders.

It is necessary to select a magnetic holder suitable for the job, taking into account the expected angles of the structure, the weight of the tool used, and the power of the magnet.

What to look for when choosing 

For a professional welder, it is important to choose the right magnets for welding metal products. This will allow you to do the job efficiently without an assistant.

When choosing, you need to remember:

1. 1. Low power welding magnets should not be used when welding heavy structures. Under heavy weight, a weak holder will not be able to fix massive parts. But a device that is too powerful will complicate the work due to its size and large mass. You need a neodymium or regular magnet suitable for a specific task;
   2. Triangular devices are most often used. They can be installed at angles of 45, 90 and 135 degrees;
   3. It is more convenient to use switchable devices. 

Welding work is carried out at a distance from the magnetic device. If it heats up, the qualities of the magnet will disappear. Strong blows also harm him. There are no more restrictions when using magnetic welding devices.

A simple DIY magnetic square

You can make your own simple magnetic welding square from the speaker on your TV. The product will look like this.

Any grade of steel is suitable for the job. The plates for the product are cut out of sheet metal manually, or a grinder is used for the work. The most important thing is to cut the corners of the fixture accurately.

After this, an insert is made that is installed between the 2 plates; it is needed to increase the rigidity of the product and to protect the magnet from metal filings. Any material will do; for example, you can use plywood, from which a triangle blank with a hole is cut out. The insert is made a few millimeters smaller than the plates; this is necessary so that the insert does not interfere during operation.

After this, the elements of the welding angle are assembled together, and, after lubricating the parts with glue, they are secured with aluminum rivets. DIY welding holder plates must be installed parallel to each other.  

After the glue has hardened, you need to cover the magnetic corner with a primer and paint it in a suitable color.

As a result, you will get a welding angle, similar in its characteristics to the branded magnetic angle. It is important not to heat the magnet during operation, otherwise the high temperature will cause loss of magnetic qualities.

Source: https://mastack.ru/other/advice/magnitnyiy-ugolnik.html

Magnetic holders for welding - convenience and practicality

Welding products is a labor-intensive and responsible process that must be approached with special care.

At the moment, on the markets you can find a large assortment of a wide variety of devices that are designed not only for protection, but also to make the welding process much easier.

Special devices with built-in magnets make it possible to set the required angle with high precision; such magnets are convenient to use for welding products at a variety of angles, and the welding seam, in this case, is smooth and durable.

Types of magnetic holders for welding

As a rule, such holders are not represented by one particular product, but have their own types and subtypes, which allow you to choose exactly the option that is suitable for certain jobs:

1. Magnetic holders with fixed angle. This type is considered classic, and a device can be presented that is designed for a certain angle - 90, 30, 45 degrees, and others.
2. Magnetic holders with adjustable angle. This type of device allows you to set the required angle even in complex structures.
3. Polygonal holders. Such models are suitable for welding structures in which there are several parts connected at a standard angle.
4. Magnetic holders with switchable or permanent magnet.
5. You can also find magnetic holders that differ in the strength of the magnet.

Main advantages of using magnetic holders during welding

As a rule, before using this or that element, the user first needs to become familiar with its positive aspects in order to make the right choice:

1. With the help of such a magnet, several elements are joined, which gives the welder a certain freedom of movement, because there is no need to hold one part relative to another.
2. For a large volume of welding work, magnetic holders are simply irreplaceable, as they minimize labor costs, and one welder can cope with all the work, no assistants are required.
3. Using such a magnet, you can fix parts that will be located in different planes.
4. Magnetic holders allow you to set the exact angle, which leads to better welding work.
5. In addition to welding work, such a holder can be used for marking and cutting parts, because it securely holds it in place and prevents the product from moving.

Source: https://timeshola.ru/ekonomika/magnitnye-derzhateli-dlya-svarki-udobstvo-i-praktichnost.html

Correct welding machine holder and magnetic welding holders

During the development of the welding industry, not only the basic welding tools were modified, but also auxiliary devices began to appear. One of these devices was the welding electrode holder - an important auxiliary tool when working with electrodes and high voltages up to 500 A.

This design is extremely simple and easy to use. A cable is brought to the back, and the electrode is clamped in pliers with a copper base; the function of the holder is to make contact between the electrode and the wire.

In addition to the holder described above, there are also those with which the parts are fastened together. These holders are called magnetic.

In this article, we invite you to consider the types of holders for welding, as well as how to choose a suitable holder and what is the main function of this device.

What is a welding holder and how to work with it

Before you include a welding machine holder in your work, you need to be well aware of all its functions, advantages and disadvantages. Let's say the voltage in your welding inverter is about 300A, moreover, it is running at full power, and the holder you are using is only rated for 200A. Then using the latter in your work will not be the best idea: the holder will simply burn. Therefore, to prevent this from happening, read the characteristics of the device more carefully before purchasing it.

Note that the conditions in which you have to work with the electrode holder are not the best. Constant heating and sudden cooling, however, the voltage even at 200A is quite high, external environmental influences: rain, dirt, snow, etc.

Therefore, a good welding electrode holder is made of durable and reliable materials: the jaws that clamp the electrode are made of copper, since this metal conducts electricity better than aluminum or steel, the outer casing is protected by a thick layer of plastic, the clamp should be large and, if possible, , cast Don't waste money on a good grip.

Here we note that many welders buy a holder for a welding machine with a “reserve”, that is, they work at a voltage of up to 200A, and the device is designed for 300A. Of course, this option is the safest, you don’t have to worry about overvoltage, but the higher the stability threshold of the holder, the larger, more massive it is, and therefore heavier.

Remember that when working in inconvenient conditions, it is better to buy a holder with a suitable amperage for the work.

As already described above, the function of the holder is extremely simple: a cable with a certain voltage (calculated in amperes) is connected to the back, the base is unscrewed using a screwdriver, to which the cable is attached, and the electrode is clamped in the pliers.

Next, the current is conducted through the cable, through the holder and to the electrode.

Note that for many holders, the insulation (plastic covering) is held on by screws, that is, if possible, you can replace the old plastic with a new one, thereby avoiding unnecessary worry and, at worst, damage. It’s better to monitor the condition of your devices constantly if you don’t want to harm yourself.

What are magnetic holders?

Magnetic welding holders are another great welding aid that uses powerful magnets to hold a metal workpiece in position. The large model can usually support up to 40 kg, and the small one – up to 20 kg.

This device is capable of fixing the parts to be fastened at the desired angle: 45, 90, 135 degrees, which is quite convenient, especially when the parts are heavy or you need to create an extremely precise structure, for example, a gate. Thanks to this tool, you can fasten several parts and create the appearance of a finished structure, so you protect yourself from unnecessary work and can always change something.

Here we note that, if possible, it is better not to weld the product very close to the magnet. Again, magnetic welding holders have their own weight holding limit, as discussed above. You should not buy a holder that is too weak or, conversely, too powerful if it is not needed. After all, the more mass a device can withstand, the larger and heavier it is, and it has to work in all kinds of weather conditions.

There are different types of magnetic holders, the most common are carbon holders, which are made on the basis of a triangle or pentagon; they fix an angle of 45, 90 or 135 degrees; most often, of course, holders are needed to secure right angles.

Another interesting function of magnetic holders is the fastening of beams at a certain distance and height from the edge of the main part, to which additional ones are welded.

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