Corner Magnet for Welding
When welding small metal parts, it can be difficult to keep them stationary. To fix the elements in this case, the welder most often has to resort to the use of additional mechanisms and devices so that the parts do not move during welding.
The use of vices and clamps allows them to cope with this task perfectly, but the main disadvantage of such products is the need to carry out a large number of additional movements to install the part in a static position. And also the inability to fix parts at a certain angle.
A magnetic holder for welding does not have such disadvantages, so if you often have to weld parts in this way, it is recommended to purchase or make this device yourself.
Types of magnetic holders for welding
When performing welding work, magnetic devices of the following designs are most often used.
Angular: permanent
The advantage of this model of angles is the ability to quickly fix the parts to be welded in 6 positions. The device consists of 2 plates with a powerful magnet located between them.
If you often have to weld parts at different angles, it is recommended to purchase an adjustable holder.
A design with fixed angles will be much cheaper, but such a device should be purchased when the main part of the welding work involves fixing elements in the most frequently used position.
Disabled
The switchable magnetic welding holder is a device in which the magnetic field can be neutralized using a rotating lever.
Such devices cost several times more than a regular angle, but thanks to the shut-off function, using the product is easier and more comfortable.
Also, switchable models can be easily cleaned of metal shavings and other small parts.
Which type of welding holder to choose depends on many circumstances. If the corner is needed for frequent use, it is recommended to purchase a switchable model with a tearing force of at least 20 kg.
Main selection criteria
If a magnetic holder is needed for professional use, then it is difficult for a beginner to understand the models on the market.
Below are the main criteria for selecting such a device, taking into account many factors.
- Purchasing a low-quality product will complicate the performance of welding operations at a high level. The holders are exposed to high temperatures, which can lead to a significant decrease in the magnetization coefficient of poor products. When purchasing, you should inspect the product for mechanical damage. Even a small recess or unevenness of the tool at the point of contact with the fixed elements will not allow the work to be performed at the required angle.
- If you often have to weld parts at different angles, it is recommended to purchase an adjustable holder or a set of several triangles.
- Not the last selection criterion is the price. The cost of many Chinese-made models can be very attractive, but often such devices fail after the first use.
To purchase a high-quality magnetic holder, it is recommended to consider products made in Russia and Europe.
Homemade magnetic corner
If you don’t want or have the opportunity to purchase a fixing device in a store, you can make it yourself from scrap materials.
A magnetic holder for welding with your own hands can be made using the following materials:
- magnet from a powerful speaker;
- steel sheet 2.5 mm thick;
- heat-resistant glue for metal;
- rivets.
To carry out the work you will need the following tools:
A homemade magnetic holder for welding work is made in the following sequence:
- A triangular blank is marked on a metal sheet using a square and some sharp object.
- Using a grinder, the workpiece is cut strictly along the intended stripes.
- The cut blank is applied to a metal sheet and the sheet is marked again.
- An exact copy of the previous part is cut out.
- Both triangles are filed with a file so that their side planes are perfectly even and the parts are absolutely identical.
- The triangles are aligned with each other, clamped in a vice, and holes are made at their corners with a diameter equal to the thickness of the rivet used.
- A magnet from the speaker is placed between the two triangles, onto the plane of which glue is first applied.
- The square is placed in such a way that the holes of the plates are aligned and they are fixed together with rivets.
- Once the glue is completely dry, the product can be painted in any color using special heat-resistant enamel.
The assembled product will allow you to qualitatively fix a mass of up to 3 kg at a certain angle.
If a more powerful holder is required for welding work, then the device can be made according to the above diagram. Only use neodymium magnets from a computer hard drive as a magnetic material. In this case, you can get a free and high-quality device with increased power.
When making a homemade structure, using glue and rivets is the best option. If you use bolted connections, then over time the fastening will weaken due to vibration and high temperature.
Conclusion
Using magnetic angles for welding allows you to perform work more efficiently.
The cost of non-adjustable models with the ability to place workpieces in 3 positions will be about 500 rubles, so every welder can afford to purchase such a product. If you want to save money and improve your DIY skills, then the instructions provided will help you make a magnetic device with your own hands.
(15,00 out of 5)
Source: https://steelfactoryrus.com/uglovoy-magnit-dlya-svarki/
Magnetic square - simplicity and convenience of welding
03 September
Often, when welding two parts, it becomes necessary to attach them to each other at exactly a given angle and hold them during the entire welding time. It can be quite difficult to do this by hand, but by eye.
A magnetic welding square helps solve this problem, facilitate the work of the master welder, and allow parts to be welded without the involvement of additional assistants.
Even with a one-time need to use such a tool, it can be very useful, and in the work of a professional welder the need for a fixing tool will arise very often.
With the help of such a square you can connect and securely fix together:
- Sheet metal parts;
- Metal racks, supports;
- Structures made of metal frames, corners, pipes.
Benefits of using squares
- Freedom of maneuver. Since the parts to be joined are held securely together by the squares, the master welder can work in more comfortable conditions, with sufficient freedom of action.
- Magnetic corners allow you to do without outside help. First, the parts are connected together and held with squares, then the welder can safely apply seams to the joints.
- The corners will hold the parts strictly at a certain angle and will not allow them to move away from each other. This makes the seam much neater and more precise. If the work requires high precision, and the permissible error is small, then using squares becomes simply necessary!
- If you need to perform standard operations many times, the square will allow you to get a big gain in time, and therefore increase labor productivity.
- A magnetic square is a universal tool. It can be used not only for welding work. Reliably holding the workpiece in a given position is important when processing metal, for example when cutting, marking or drilling holes. This means that such a tool can also be used in a locksmith workshop.
- If the parts being welded have a non-standard configuration with a large number of edges or corners, then it may be almost impossible to keep them in the desired position. Squares can be of great help in such a situation.
Classification of magnetic squares
Since the range of tasks that a welder's magnetic angle is quite wide, many variants of this useful device have been developed. They differ in shape. Different shapes allow different angles to be set. There are differences in design and principle of operation.
First of all, it is worth saying that the square can be factory-made or home-made. The advantages of a factory square are obvious - you can simply buy it in a store, the angles on them are precisely adjusted, and it is easy to use. But usually factory squares are made in such a way that they allow you to set a specific angle, for example 90º or 25º. A homemade square can be made to set any angle.
According to the principle of action, they are distinguished:
- Simple squares. They allow you to set only certain angles.
- Magnetic clamps. They have an adjustment mechanism. With it you can set almost any angle. Therefore, such a tool is much more versatile to use.
- Magnetic square with switchable fixation. This type of square is equipped with switches that allow you to turn off the magnetic fixation. Therefore, such a square can be easily removed after finishing work - just flip the switch and remove the device, and not tear off a powerful magnet from the metal with brute force, as with previous types.
The power of the magnets used in the design of the angles also varies. The heavier the parts you have to hold, the more powerful the squares you need. For small welding work at home, a low-power magnet will be sufficient.
Which magnetic squares are better?
Before answering this question, decide which parts you are going to weld and under what conditions. If you need to connect heavy elements during in-line, large-scale production, a model with powerful magnets and fixed angles is suitable. And if you are planning minor repairs or are going to use welding to assemble complex compositions (for example, welding shaped fences), a magnetic clamp with small magnets is better suited.
Correctly assess the complexity of the work. Maybe we can get by with inexpensive standard mold holders? But if the configuration of the future product is complex, you will have to splurge on a professional three-axis welding angle.
Signs of a quality square:
- High strength.
- Powerful magnets that can hold a lot of weight.
- Ability to rigidly fix parts. Parts fixed with a square should not move even after force is applied to them.
- The presence of switches that turn off the magnets. The switch can be located on one side, but it is much more convenient if they are on both sides.
Another important advantage of a switchable magnetic corner is the ability to adjust its magnetic properties. A magnetic field can affect an electric arc. Therefore, when approaching the place of fastening, the corner will have to be removed. And at a switchable corner, you can simply turn off the magnetic field for a while, and then turn it on again when moving to the next section.
Almost the only drawback of a switchable angle is its high price.
Of course, when choosing a square, the issue of cost will be important. A household fixative of acceptable quality can cost about 350 rubles, although even for household work it is better to take a set of several squares (800 - 900 rubles). And professional clamps with the ability to widely adjust angles and fixation in three planes can cost about 3 – 5 thousand rubles.
Review of professional magnetic squares from Smart&Solid
Smart&Solid magnetic clamps have become very popular among professional welders. Let's look at the advantages of some models.
- Magnetic square Smart&Solid MAG 605/606 is a reliable professional square with a switchable magnet. The square can withstand up to 13 kg of pull-off force. The powerful magnet disengages with one click, making it easy to install and remove the clamp, as well as clean out debris. The 605 and 606 series have the same shape and size. Only the power of the magnet is different. Clamps of this series are well suited for welding and metalworking manipulations of medium complexity. They allow you to work with angles, pipes, and sheet metal. The price fluctuates around 1,700 rubles.
- MAG 601/602/603 – a series of non-switchable angles. Magnets of this series can withstand pull-out forces from 11 to 34 kg. Angles 45°, 90°, 135°.
- MAG 613/614/615 series – permanent ferrite clamps. The hexagonal shape of the square provides six fixed installation angles. The most powerful square in the series guarantees reliable fixation with a pull-out force from 11 to 34 kg. Angles 30°, 45°, 60°, 75°, 90°, 135°. The cost of magnetic clamps of this series is about 800 rubles.
Let's sum it up
Magnetic clamps are a useful tool in a welder's arsenal. They allow you to free your hands, speed up the process of joining parts and achieve high quality seams. Today there is a wide range of magnetic angles built using both switchable and non-switchable circuits. In the variety of models existing today, there is a suitable option to solve any problem.
If you are looking for a magnetic angle for welding work, we are happy to offer our assistance. In our Bogofi.ru store we have a wide selection of high quality magnetic angles. If necessary, our consultants will help you choose the best option that will suit you both in terms of functionality and price.
Source: https://bogofi.ru/clauses/oborudovanie-dlya-kovki-i-metalloobrabotki/prostota-i-udobstvo-magnitnyy-ugolnik-dlya-svarki/
