Do-it-yourself magnetic squares or welding magnets. Magnetic Welding Tools Magnetic Welding Corner Blueprint

The magnetic square is intended for fixing metal parts during welding, soldering, assembling structures. It is used to work with round pipes, rectangular pipes, strips, angles, profiles, sheet, solid and other types of metal. The square quickly and reliably connects parts, reduces work time, facilitates installation and replaces bulky clamps and clamps. Angles: 45°, 90°, 135°.

There are many types and designs of welding elbows from different manufacturers. For various types of work, magnetic squares are available in various sizes, different forces, even with a continuously variable working angle.

Naturally, all welding corners are different in price. But if the brand and appearance are not very important to you, then you can easily make a magnetic square with your own hands. A home-made device is quite enough for welding and installation work in a garage or a subsidiary farm, and most importantly, a home-made device is more pleasant and cheaper.

In any case, the welding square will find its application.

Let's start manufacturing. A store sample of a magnetic square was taken as a basis. Its dimensions have been changed to use a magnet, from a speaker, from an old TV. It turned out such a drawing.

The steel grade can be any, in my case it is steel 3. The plates of the welding square can be cut out manually, you can use a grinder, the main thing is to observe the accuracy of the angles. In my case, the plates were cut from metal using laser cutting. We got such blanks.

Now it is necessary to make a spacer between 2 plates of the magnetic square, it is needed in order to protect the magnet from sticking of metal filings and to stiffen our structure. The simplest thing that turned out to be at hand is plywood, we cut out a blank with a hole for a magnet and reduce the outline of the part by a couple of mm. This is done so that the spacer does not interfere with fixing with a magnetic square, for example, a water pipe.

Now that we have all the necessary parts, we assemble the magnetic square using aluminum rivets, after smearing the parts with glue, for greater reliability. The plates must be assembled strictly in parallel.

When the glue dries, it remains only to paint the homemade magnetic square, first with a primer, and then with paint, in the color you like.

As a result, we get a welding square similar in its characteristics to store samples. The main thing to remember is that during operation it is undesirable to allow strong heating of the magnetic square, since the temperature can lead to a loss of magnetic properties.

zazsila.ru

Welding magnetic square

Very often, in order to carry out high-quality welding work, one experience is not enough. Even professionals use accessories, such as magnetic welding squares, to help keep parts in place while they work and prevent them from moving.

The main objective of this design is to ensure the accuracy of joining two products, most often at an angle of 90 degrees. However, professional magnetic corners allow you to hold parts at any angle.

Benefits of a magnetic welding square

• Welding magnets allow you to work not only with sheet metal, but also with products of complex shape.
• Thanks to the presence of a magnet, welding work is greatly simplified.
• Fast fixation of the product at the desired angle.
• Welding magnets allow you to work in any planes.

DIY magnetic square

Even an inexperienced craftsman can easily make a magnetic square for welding with his own hands. This will require the following materials:

1. Sheet metal 2-3 mm thick in section;
2. Round magnet;
3. Bulgarian;
4. Screws, nuts.

Consider the step-by-step manufacturing of the product:

1. Before proceeding with the manufacture of the product, it is better to study the diagram of the magnetic square. Professionals recommend that beginners use monolithic products. Templates for such designs can be easily found on the Internet or created individually for yourself. We mark up the future product on a metal sheet. It is important that the corners are as straight as possible.
2. Using a grinder, we cut the workpieces and check their corners.
3. We change the cutting disc in the grinder to a cleaning one and carefully grind the product. All corners of the two plates must match exactly. If something does not match, the corners are adjusted to maximum purity. In addition, both the end and front parts are polished so that rust and other defects do not reduce the strength of the magnetic field.
4. We fix the magnet between two plates and carry out the assembly.
5. We drill out the attachment points and assemble the magnet for welding with screws and nuts. M6 bolts are used for assembly. Nuts are screwed not only on the end of the bolt, but also between metal plates to prevent the product from bending when screwing in the threaded bolt. It is important that the round magnet does not protrude beyond the edges of the templates. The shanks of the bolts that go to the nuts must be cut off with a grinder.
6. Checking the distance between corners
7. The magnetic corner for welding is ready.

When using both home-made corners and those bought in a store, do not forget about working temperature conditions. So, magnesium welding requires very low temperatures, while other alloys require stronger heating, which can lead to a loss of the magnetic properties of the corner.

Sergei Odintsov

electrod.biz

Magnetic Welding Tools

Welding equipment, in addition to the apparatus itself and protective equipment, has a more extensive list. Most often, a variety of clamps and holders are required to fasten workpieces. Especially the presence of such additional equipment is relevant when you need to weld workpieces at different angles.

In this article, we will analyze which welding magnets are used in the process of work and how to make some of them yourself.

Varieties of welding fixtures

Why are magnetic accessories used in welding? The technology of joining parts by welding may require the welder, for example, to place different workpieces at angles from 30 to 90 degrees, or to accurately orient the edges in the same plane. Such magnets are especially useful for welding metal structures from shaped pipes. To achieve excellent quality is possible only with the use of various kinds of corners and holders.

Most often in welding practice, the following devices will be required:

• Magnetic corners (permanent and switchable).
• Fixing devices (for fixing in one position).
• Clamps (used for clamping parts).
• Spacers (to create gaps).

Magnetic corners

The main advantage of such a device is that they reduce the time for preparing parts for welding. The magnetic corner for welding allows:

• Reduce the complexity of the process. No need to fiddle with fixing parts for a long time.
• The ability to fix parts of the product at almost any angle.
• The compactness of the devices makes it easy to work with them.
• Automate the welding process. Detachable magnets allow you to quickly attach and detach fasteners.

The most elementary products have simple welded joints, but more often they have complex configurations and shapes of seams. And no one cancels the accuracy in such work. Therefore, magnetic devices with different functionality are often used: fixed and adjustable angles or permanent and switchable magnetic systems.

The design of permanent magnetic corners is simple. These are two metal plates with a magnet located between them. The most common form is in the form of a house with a gable roof, a cut ridge and a round hole in the middle. There are also others, for cooking in all three coordinates of space, or simpler - tetrahedral or polyhedra, as well as cylinders.

Having such a magnetic square for welding between parts in the desired position, they achieve quick fixing of parts of the product.

Switchable magnets

The magnetic holder for welding can be both permanent and switchable. They allow you to fix the details by turning on.

Their advantage is that the switchable welding magnet can be removed with one turn of the switch, after fixing the parts with welding points. It also makes it easier to clean the magnet from chips and small scraps (unlike a permanent magnet).

Also, all magnetic squares can be standard or universal. If the standard ones have exactly fixed angles, then the universal ones will allow you to weld two parts at an angle, for example, at 32 degrees.

Clamps

This device is designed to pull two parts together and temporarily fix them.

The most common form is in the form of the letter "p" turned on its side. One side serves as a permanent retainer, while the other has a threaded screw clamp.

The size of parts that can be fixed with clamps is limited by their parameters.

Such clamping devices will be useful not only for welding, but also in other types of plumbing work.

The use is simple - the parts are placed in the clamp and tightened with a screw.

Spacers

To create gaps between the welded parts of the product, you can make an elementary spacer from a piece of pipe or fittings. But, to reduce preparation time, you can use factory products.

The principle of operation of such devices, like clamps, is based on a screw thread. Only functioning, on the contrary, for unclenching.

How to make a switchable magnetic square

Prices for magnetic welding devices can range from $20 for simple devices, universal ones will cost more. And the most expensive ones are disconnected ones. But you can make them yourself.

A permanent magnetic square can be made in this way:

• From a suitable sheet of steel, plates must be cut, for example, triangular in shape. The main thing is to correctly measure and mark the corners of the triangle. All ends must be carefully cleaned with a file.
• The magnet can be used from any unusable audio speakers.

Accordingly, metal plates are cut to the size of the existing magnet.

• After the whole structure is assembled into one. The magnet is located between the plates. For assembly, three holes are drilled for clamping bolts.
• To prevent the magnet inside the device from becoming contaminated with chips and scraps, end caps can be made. Or just periodically clean the surface by disassembling the fixture.

The shape of a homemade holder can be varied, the main thing is to accurately withstand all angles. This method ensures reliable fastening of the parts to be welded.

A welding magnet or screw clamps will in any case come in handy in the arsenal of a welder. Even with an assistant who will hold the parts to be welded, it is impossible to achieve accurate exposure of angles and the required parameters.

Magnetic holders will securely fix the parts, and their installation and dismantling is simple, while taking a minimum of working time.

Switchable magnets are very versatile in application, their mechanism allows you to control and adjust the displacement of parts.

If you have experience using magnetic holders and other devices, please share it in the comments section of this article. How effective will welding magnets be in a home workshop, and which devices are better to purchase. Also important is your experience in making such mounts with your own hands, how to make and how difficult it is to make universal and switchable magnetic devices.

wikimetall.ru

Welder's Magnetic Square

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Good time everyone. I want to tell you how to make a simple welder's square with angles of 45 and 90 degrees.

To do this, we just need: a small sheet of old unnecessary metal 2 mm, a worthless speaker, or rather a magnet from it, diameter 85 mm, width 15 mm, 4 bolts 6 mm, length 40 mm, nuts to bolts. So let's start, with a locksmith's square, we check that the angle of the metal sheet is clearly 90 degrees. If there is no factory square, then we go the other way, put the magnet so that it sticks flush to the two edges.

We put a ruler to the bottom edge of the magnet, mark it evenly, and cut it off.
Further we clean up to white metal.
On the finished triangle, we make another one.
Next, we clamp the workpieces in a vice and file them to perfection, both workpieces must be the same size.
When the workpieces are ready, we put a magnet between them and mark the places for the hole, we drill two workpieces together.


Then we insert the bolts on one bolt, there are three nuts, two in the middle and one on top for clamping.
Drill a hole in the center
and twist it with a bolt, adjusting the magnet flush on all three sides so that it does not move, but we clamp it without fanaticism, if you pinch the magnet it can crack.
Now we cut off the extra bolts that stick out.
That's all the square is ready. Let's check it, take a square profile and put a square on it.
We take another profile and attach it to the fixture and weld it.

Everything is fine, the strength of the magnet on the square is enough so that it does not lead when welding, since it also heats up.

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Hello. Today I want to talk about a magnetic welding square that I recently made. I have to make some gates and entrance gates soon, so I decided to make some magnetic squares this winter. They will save me a lot of time and effort when welding rectangular structures from profile pipes.

Here's what I needed for this:

1. An old speaker from a car stereo.
2. "Magnetic" sheet metal (steel) 1 mm thick
3. Thin aluminum strip.
4. Blind rivets.

As you know, the speakers have quite powerful ferrite magnets.

Using a hammer and chisel, I separated the "magnetic part" of the speaker. (It is attached with four rivets).

After that, it remains to remove the magnet. It is located between two steel plates and secured with glue. It was necessary to lower it for some time into acetone, or into the 646th solvent ... But I just took a knife, which is not a pity, inserted between the plate and the magnet, and, with light blows of the hammer, separated the plates.

I used to get it "clean", but this time the ferrite magnet chipped a little ... Oh well ... I'll grind on a diamond cup.

Next, I started making plates. I cut them out of an old window tide. (I myself am surprised, but it was made of "black" non-galvanized iron, 1 mm thick!). The metal was very well magnetized, which was what I needed in the first place.

Using a locksmith's square, attaching it and the resulting magnet to the workpiece, I determined the dimensions of my future product, drew it and cut it out with a grinder:

Next, I marked and cut out the corners. Corners need to be cut for several reasons:
Firstly, when cutting a profile pipe (and especially, with a thick circle on, burrs remain on the edge. When welding, they will easily melt and do not interfere. But the square will rest against them. (But even half a millimeter will greatly change the angle in this case). Therefore, after the pipes are cut to size, you will have to clean up these burrs, and waste time on this.

Secondly, if there is not a large gap in the corner, you can accidentally weld the square itself to the workpiece !!!

So I cut them like this:

I did not mark the second plate. I just attached the first one to it (already with cutouts) and, according to this template, marked it and also cut it out:

Next, I went into fine tuning. Indeed, it is not possible to cut very accurately with a grinder, and accuracy is needed to a fraction of a millimeter. Therefore, I had to finish it manually. I took a piece of a wide profile pipe, spread a strip of emery cloth on it, and manually, on it, grinded the sides of my metal triangles, periodically putting them into a locksmith square and checking "for clearance"

After that, evenly folding the blanks and squeezing them in a vise, I drilled holes in them for rivets. (I forgot to take a picture of this process). And after that, just in case, pulling them through the holes with M5 screws, I “finished” them again on sandpaper, already two together.

Next, I want to focus on a common mistake when making homemade squares. Many do-it-yourselfers make them "open". That is, they do not cover the butt with anything! It is unacceptable. Because when working with metal, there is a lot of sawdust, frozen spatter of scale, small scraps and other magnetic debris. Since all this debris is very light, it adheres to the magnet abundantly. Here, for example, is a photo of a weak (!!!) magnet, with which I deliberately "poked" on the workbench after I cut and finished my workpieces:

See how much he got?!!! The magnet itself is not even visible behind the garbage!!! This is how garbage and a magnetic square will collect. And even stronger, because its magnetic properties are more powerful!!!

That is why its shape should be such that it can be easily cleaned!!! That is, its ends should represent smooth planes. I made them from a thin aluminum plate. Some kind of edging from the shelf of an old refrigerator fell under my arm.

From it I cut out a strip with a width equal to the thickness of the magnet:

And from it he bent a frame around the perimeter of the plates. It will be nested between them, and tightly clamped with rivets. The ends of the square will be tightly closed, magnetic dirt will not get inside, and it will be easy to remove it from the surface of the plates.

By the way, pay attention: I had to cut the magnet at the bottom a little. This is my mistake - when estimating the dimensions of the plates, I did not take a correction for the thickness of the aluminum plate, and then the magnet did not fit in it ....

So, let me focus on one more thing. A ferrite magnet is quite easy to cut with a grinder. But, unlike metal cutting, it is not worth trying to use an abrasive wheel at the same time !!! It will slip and you will just overheat the magnet. (By the way, if anyone does not know, permanent magnets lose their properties from overheating.). You need to cut with a diamond wheel. The diamond wheel for wet cutting, popularly called the "tiled" wheel, is best suited. It has a solid cutting surface and does not chip the cut:

And when cutting, the magnet needs to be cooled with water.
Next, I want to explain why I made the ends of aluminum, and at the same time focus on another common mistake. As you know, any magnet has two poles, conventionally called "north" and "south". Both poles are equally well attracted to the metal. For magnets of this shape, the poles are on planes. That is, when we apply metal plates to the planes, then these plates are already the poles of the magnet. And it is with them that our square will "stick", and not at all with a plane between them.

But, most importantly, the poles of the magnet cannot be "short-circuited" with magnetic material! This reduces its properties, and, in addition, contributes to the fact that the magnet, albeit slowly, but demagnetizes! And another mistake is that many people connect the plates with steel (!!!) screws. This, of course, is already a trifle, but if possible, then it is better to exclude it. And here's how I did it...

I decided to connect the plates with rivets.

Comfort and convenience in any work has never interfered with anyone. This also applies to welding. Among welding tools, there are basic ones, and there are auxiliary ones. These include the smallest auxiliary part - a wonderful magnetic corner, if more correctly - a magnetic square for welding.

Such corners are extremely useful for both artisanal craftsmen and professionals working on the stream. Small in size, but not in function, these special welding triangles improve the quality of products in general and welds in particular.

How to make a welding square?

Here's how they do it:

• While the metal blanks are precisely and securely fixed, you have more freedom of action. Your hands and your attention are focused only on the weld. Hence the improvement in quality.
• Using a magnetic corner, you can prepare and carry out all welding work yourself, without outside help. That's labor savings for you. And you don't depend on anyone.
• The seam will turn out neat and precise thanks to the optimal and reliable installation of the workpieces using the corners. If your work requires special precision, then the use of corners becomes not a recommendation, but a prerequisite for welding.
• If you have a large amount of work, you can’t go anywhere without fixing triangles: they will save you a lot of working time.
• Workpieces of unusual or non-standard shapes are easiest to weld with a corner with a magnet for welding.
• With corners, you can cook not only on horizontal surfaces, but also on vertical ones.
• These squares are useful not only in welding and soldering, their ability to firmly fix parts is useful when cutting metals.

Why is the most correct name - squares, and not triangles? Because they are available in multiple angle configurations, their shape is more like an irregular polygon. The most commonly used angles are 45°, 60°, 90°, 135°.

Types of magnetic squares

Corner construction.

Welding magnets can differ both in shape and in the principle of operation:

• The clamp is a flexible square with adjustable angles. An excellent tool that helps to produce parts of any complexity.
• Simple welding angle with fixed angles and permanent magnet.
• Switchable welding magnets are an excellent technical solution for ease of use: after you can turn off their action, the holders “unstick” on their own, which will allow you to remove the clamps without effort and any deformation.
• Universal magnetic welding elbows with several standard angles are another excellent technological solution for a variety of jobs of varying complexity.
• Squares with different power of action. It is clear that fasteners of massive workpieces need powerful clamps, as well as for small jobs that require jewelry precision, they must be compact both in size and in terms of power of attraction.
• Three-coordinate and square squares using cylinders and ferritic heat-resistant magnets for work in difficult temperature conditions and with workpieces of different dimensions and weights.

Choosing the right square: here and now

The size of the square for welding.

Everything is simple here: for simple home welding work, you will need holders that are unpretentious in their design. Complex processes involve fasteners with technological bells and whistles - from switchable magnets to heat-resistant options, from simple corners to 3D models.

One way or another, high-quality magnetic must be resistant to significant mechanical stress and have sufficient tensile strength. In the end, we are talking about fixing not fluff, but heavy metal parts. Our squares must be able to fix them permanently and irrevocably. Only in such cases will welding holders make sense at all.

If you are doing complex welding work, and if you have the opportunity, then it is best to choose quality holders with on / off magnets. Such devices will help you turn on or off not just the entire square, but individual faces.

This mode makes it possible to work independently with complex tasks. Corners of this class are usually made of chrome-plated metal with increased strength.

The cost of welding holders cannot be called low, these are expensive devices. The price depends on the number of standard angles, pull power, adjustment mechanisms, brand, etc. The simplest copies cost about four hundred rubles, a standard set - within a thousand rubles. Well, professional magnetic devices with technological additions increase in price to 3000 - 5000 rubles.

DIY magnetic holder

If you have not found a suitable welding clamp option in the store or are short on funds, you can build the desired welding magnet yourself.

Working with a magnetic square.

Making your own magnetic corner is a great idea for three reasons:

• This is real cost savings.
• It will be a device that is suitable for your technical needs.
• This is a very simple device, which is quite realistic to make even without much practical experience.

What you will need:

• a magnet of any shape, but preferably round with a thickness of about 15 mm;
• steel sheet 2 mm thick;
• M6 bolts with nuts.

Angle for welding with shutdown.

The tips and steps for making a welding angle are as follows:

1. This device is best made of steel by hand, using a grinder or a laser. The main thing is to cut templates with extremely precise angles on the work plane. There should be two templates. Their size must be greater than the diameter of the magnet. We pay special attention to the size and grinding of the corners - the quality of your square will depend on this. It does not hurt to grind the entire surface well: if rust or any defects remain, the strength of the magnet will decrease.
2. The magnet will attract any metal debris in the form of sawdust or shavings. You can get rid of this with the help of a spacer - a special part from the manner, which should be slightly smaller around the perimeter than the steel corner itself. Such a spacer will add additional rigidity to the holder, which will not hurt you. A special through hole is made in it.
3. The magnet can be of different shapes. It is placed inside. In no case should it protrude beyond the edges of the steel plates. To fix it, you need to make four holes: one in the middle and the other three at the edges.
4. The final stage of assembly is the careful folding of the layers of our “sandwich”, which can be fixed either with glue or with metal rivets. The most reliable way would be M6 bolts. Nuts should be placed not only on the ends of the bolts, but also between the layers. The tails of the bolts protruding onto the nuts must be cut off with a grinder.

Be aware of the properties of a magnet. If you placed an ordinary, rather than a heat-resistant ferrite specimen in a square, then under the influence of high temperatures it may lose its properties. This must be remembered and controlled.

Small metal objects are difficult to hold in one position during the welding process. Fixation is carried out with improvised means so that the products do not move. A magnetic corner is suitable as an auxiliary tool.

It is also called a welding square. It is useful for both the home master and the professional welder. This mechanism improves the quality of the weld and the part as a whole. Consider how to make a magnetic corner for welding with your own hands.

Types of magnetic holders for welding

The magnetic square is a mechanism for clamping one piece or joining two of its parts, providing support in a given position when welding. It is suitable for single procedure and batch production. Devices differ in design and features of operation. There are such welding magnets:

• standard square with non-switchable magnet and stationary corners;

• clamp - a flexible device with the ability to adjust angles, appropriate for products of varying complexity;

• holders with different power - used to hold workpieces with different characteristics: for small ones - low power, for large ones - high power;

• disconnected models - after disconnection, the holders disconnect themselves, the element is released without effort;

• universal squares - equipped with several angles with commonly used parameters for complex and simple work;

• three-coordinate and quadrangular fixtures - appropriate for welding in difficult high-temperature conditions, they use ferrite magnets that can withstand temperature changes and cylinders.

For home use, you can assemble a magnetic corner for welding with your own hands. Handicraft tool withstands mechanical stress. It can fix large-sized parts, permanently hold and join parts of products to obtain high-quality seams.

Angle: permanent action

Corner models are two plates with a magnet placed between them. These are multi-position devices with adjustable clamping angle within 30⁰-135⁰. They are appropriate for quick fixation of the elements to be welded. Plates allow you to hold in the subject in one of 6 positions. Such mechanisms are acquired when, during the welding process, the workpiece needs to be rotated in several angles.

• Important! Fixed angle tools should be selected in situations where welding is carried out in frequently used positions.

Disabled

Switchable models - devices with a magnetic field, which is turned off by a special rotary lever. They make it easier to clamp and release the workpiece to be welded. Such devices are easily cleaned of metal chips and small items.

Main selection criteria

For professional work, you should choose a high quality tool. Devices are exposed to high temperatures, which reduce the magnetization coefficient of low-quality copies. The fixture must be free of chips, recesses and other defects at the points of contact with the clamped product. Irregularities do not allow you to firmly fix objects at a given angle.

• Important! The advantage of switchable corners include the ability to turn off the magnetic field both on the entire device and on its individual faces. These devices are appropriate for craftsmen who often weld parts of complex configuration.

Chinese squares stand out for their budget price, but they do not withstand temperature extremes, so they break quickly. For welding products at different angles, it is recommended to choose a customizable mechanism or purchase a kit containing several types of tools for clamping at certain angles.

Homemade magnetic corner

Home craftsmen will be able to assemble a magnetic corner for welding with their own hands. For its manufacture does not require highly specialized knowledge. You must first prepare:

• magnet - thickness less than 15 mm;

• steel sheet 2-3 mm thick;

• bolts M6 with a set of nuts or rivets;

• heat resistant adhesive.

• Important! The configuration of the magnet does not matter. Practice shows that it is better to choose its round shape. Suitable option from a powerful speaker

The sheet of steel is marked in the shape of a triangle for subsequent cutting of the elements of the magnetic corner for welding with your own hands, it is better to take ready-made drawings. Bulgarian cut out the first element according to the markup. The second part can be marked on the first by attaching it to the steel sheet. With the help of a file, the cut surfaces are cleaned to a perfectly even state. Finished elements must be the same, errors are not allowed.

Triangles are applied to each other and clamped so that the edges coincide completely. They are fixed in a vice. Holes of the same diameter are drilled in the corners as bolts or rivets that will fasten the elements.

A magnet is placed between the triangular plates. Its size should not exceed the parameters of the triangles. The surface is pre-coated with glue. Parts of the holder are fastened with bolts or rivets. Coloring with heat-resistant enamel is carried out after the glue has hardened.

• Important! Your DIY neodymium magnet tool is capable of holding workpieces weighing over 3kg. The condition of non-heat-resistant analogues is recommended to be periodically monitored, therefore it is advisable to fasten their parts with bolts

When making a magnetic corner for do-it-yourself welding, you should take into account the features of the upcoming work. For welding at high temperatures, heat-resistant ferrite magnets must be provided. They don't need state control.

Overheating of a mechanism not intended for heating leads to a decrease in its magnetic effect and irreversible failure. In non-separable structures, it cannot be replaced.