What is magnetic mass for welding machine? Magnetic contact of the welder How to make a mass for welding with your own hands

Working with complex structures, any welder will appreciate all the advantages of the magnetic mass. This is a fairly convenient device that allows you to fix it on the parts to be welded without any problems.

As a result of using this alternative, standard "crocodiles" become much more comfortable.

Magnetic mass for welding.

As a rule, it is completed with a cable clamp version. At first glance, it may seem that the use of such devices is very convenient. After all, they are securely attached to most products, especially when it comes to sheet metal.

Nevertheless, there are often situations when the installation of this type of clamp is not possible. Magnetic contact is an excellent replacement for the usual "crocodiles". In addition, such a device can be easily mounted on any surface.

This device has several advantages:

• the possibility of easy fixing on the surface of the welded product;
• simple, almost eternal design, the probability of breakage of which is minimal;
• this device does not burn out, as it withstands power surges;
• high reliability ensured by a large contact area.

The disadvantages include only the inconvenience of connecting to small products, bars and fittings.

Outcome

The magnetic mass is a useful and simple device that makes welding work more comfortable.

Such contact is more reliable. It withstands voltage fluctuations, and due to its simple design, it is more durable.

Arc welders are familiar with the annoyance and annoyance that comes with an unexpected interruption of work due to the welding machine ground cable suddenly no longer making contact with the workpiece. Traditionally, spring “crocodiles” are used for its fastening, the grip of which weakens with frequent use.

In addition, there are situations when it is simply impossible to attach such a clamp to the workpiece. An alternative to the crocodile clip is a magnetic device for attaching the mass cable, which can be made from an old speaker from the radio.

The speaker needs a large diameter. It is not necessary to dismantle the working radio to remove it; if you wish, you can find one at the nearest car dump.

How to make a magnetic mass for welding
It is not difficult to make a magnetic fastening of the mass wire of the welding machine from it. For this:
1. Unscrew the magnet fastening screw located on the back of the speaker.

2. Separate the magnet from the structure by simply picking it up with a screwdriver.

3. Grind the surface of the magnet to a smooth state using a grinder equipped with a petal disk.

4. Dismantle the standard spring clamp of the welding machine ground cable and release the end of the wire from it.

5. Select a bolt that matches the diameter of the cable lemma hole.

6. Insert the bolt into the magnet hole.

7. Assemble the fixture completely.

The result is a convenient magnetic attachment of the ground cable, which has large area and, therefore, providing sufficient force of its pressing to the surface of the workpiece.

During the operation of the welding machine, the magnet of such a device and the mass cable do not heat up; with moderate use, the magnetic mass can last a long time.

Often, accessories for a welding machine are either of poor quality and break, or may be absent altogether. The Magnetic Welding Compound is a handy tool for attaching to the parts to be welded and a good alternative to standard clothespins.

What does such a contact consist of, what positive qualities does it have and how to make it yourself. More on this later in the article.

Typically, welding machines are equipped with a mass cable with a clamp-type holder. At first glance, it is convenient, such a device can be securely fixed to almost any surface (sheets, rolled metal, etc.).

But there are situations when it is not possible to install such a mass on the workpiece or, more often, it burns out. A good alternative would be the magnetic contact of the welding cable.

What are its advantages over a standard clothespin clip?

• This is an opportunity to fix the contact on almost any surface without much hassle.
• The simple design is almost eternal in use, it will not break, as there are no springs and mechanisms.
• Such a mass perfectly withstands voltage drops and loads, as a result of which it does not burn out.
• The large contact area ensures reliable closing.

But there are also disadvantages to this type of fastening of contacts. The main disadvantage is that the magnetic mass for welding will be poorly installed on parts that are small in area, for example, a bar or reinforcement. The second negative property will be the impossibility of fastening to welded parts made of non-ferrous metals: aluminum, copper and others. Also, over time, the magnet will become contaminated with metal shavings and needs to be cleaned periodically.

Without taking into account the last two factors, this is a rather convenient device that you can even make yourself at no extra cost.

The device itself consists of two parts.

• Contact. This is the point where the ground cable is attached to the holder.
• Magnet. It can be of various shapes and sizes.

These two parts are connected to each other by a fastener. The weight of the magnetic mass for welding will have depending on the dimensions. For example, an ESAB magnetic welding terminal weighs about 850 grams.

The main thing in this design is simplicity, due to which reliable operation and uninterrupted operation are ensured.

Self-manufacturing

Of course, such fasteners of the welding mass can simply be purchased. Manufacturers that manufacture welding equipment also produce accessories in the form of fasteners. But these are unnecessary financial losses, such a contact can be made independently.

Making a magnetic contact for your own hands is quite simple. You will need a minimum of tools, and the parts can be at hand.

• First, a magnet. it main detail the entire device, which will ensure the reliability of fastening. Most often you can see homemade products made from a magnet from car speakers.
• Secondly, two washers according to the size of the magnet. If you use a car speaker, then a bolt can be welded onto one of the washers for further assembly.
• Thirdly, a bolt and nut for clamping the cable.

The assembly of the entire system is carried out in this way:

1. Washers can be made from sheet metal, according to the size of the magnet. If this is a speaker, then it usually has a round shape. Accordingly, the washers should be the same.
2. At the bottom (the one that will serve directly as a contact), a hole is drilled along the diameter of the bolt head.
3. The very top of the bolt must be ground down to the thickness of the washer.
4. Now this structure is welded and cleaned. You should get a part in the form of a mushroom with a threaded leg.
5. The magnet is put on the bolt, and on top - the second washer.
6. Now, the end of the mass cable is attached to the threaded rod and the entire structure is tightened with a nut.

So, from the simplest material, an elementary mass is collected for welding on a magnet. Its smooth operation will be proof of proper assembly. The dimensions of such a contact will depend on the dimensions of the magnet. Prefabricated round masses usually have a diameter of about 50-60 millimeters.

For an experienced welder who knows the principle of the work of the mass on the welding machine, it will not be difficult to make the required fastening. The most primitive contact can be a piece of rod fixed to the cable, which is fixed to the workpiece with a pair of welding points. But, of course, such a device is very inconvenient to use.

You can also make your own magnetic holder for electrodes. That also already depends on personal preferences in the convenience of work.

Homemade terminal on a magnet a good option savings. Although to use such a mount or not - this is already looking at personal convenience at work. If welding is rarely used (as usual in everyday life), then you can simply get by with a standard clamp.

I like things that simplify and make life easier. This device will help the welder and save him from unnecessary actions. It will be about how to make a magnetic ground contact for a welder from an ordinary unnecessary speaker. I'll tell you more...
Usually, in order to attach a common wire - mass to the metals being welded, a clamp is used. Such a connection does not always give a tight and reliable contact, and there are times when it is not very convenient. With the help of a magnetic contact, it is possible to obtain a strong and reliable connection of a large cross section in one movement, meaning a good contact area.

It will take

• Dynamic head, naturally non-working.
• Hairpin.
• Nut-cheburashka.
• Washers.

Manufacture of the magnetic contact of the welding cable

We disassemble the speaker, or rather disconnect the magnet. To do this, you need to knock down the rivets. To do this, you can clamp the dynamic head in lathe and squander. Or just drill with a regular drill. In general, it is not difficult.

And the magnet comes off without problems.

The core in my case departed almost by itself.

If it doesn’t work out for you, then heat it with a gas burner and pick it up with a screwdriver.

We take a piece of hairpin 8-10 cm long and try it on to the core. It will stick like this.

We drill from the back side. The hole is not through, but about 80% of the total length.

We clamp it in a vise and cut the thread for the stud.

We put two nuts on the stud and tighten them together.

And now we screw this impromptu bolt into the core to the maximum, you don’t have to turn it out anymore.

We twist the nuts now.
In order not to lay the wire directly on the base, we first put on a small sleeve, and then a washer. Next is the welding wire.

We fix the top with a washer and a wing nut.

Note the large area of ​​the attached contact.

Now we collect the magnet together.

For proper retention, you can put everything on glue or epoxy.

The magnetic contact is ready. Let's try to weld. We put it on a sheet.