Argon welding - a modern method of working with metals

Many people are aware of gas and electric welding. Recently, they were replaced by a more perfect method of working with different metals. It is called "argon welding". What differentiates it from other welding methods?

The basis of the argon burner is a tungsten electrode that does not melt at high temperatures . The choice of this particular material is due to its refractoriness. Around it there is a ceramic nozzle. When welding, argon is blown through it, which is an inert gas. The presence of this gas during operation is explained by the fact that when exposed to certain types of metal, for example, aluminum, argon welding allows them to be kept from burning, crackling and coating with crust. It is this inert gas that protects the welding places from the presence of air, in which all of the above problems occur.

What is the process of work itself? Welding with argon begins from the moment when the so-called "mass" is fed to the processing site (this is similar to electric welding). With the right hand, the welder keeps the burner through which gas is supplied, and the left-hand side with a special filler wire. Each metal requires the presence of "its" wire. For example, when welding aluminum, a material is taken from its alloys.

The burner is equipped with a special button, which activates the supply of gas and electric current. An electric arc is formed between the electrode and the metal, which plays the role of the main tool. It is she who melts the filler wire and part. If the thickness of the parts to be welded is small, the additive may not be used. Despite its apparent simplicity, argon welding requires a lot of experience from the welder. From the skill and attention of a high-class specialist depends the quality of the joint welding and the functionality of the products to be restored.

Welding with argon is used not only when working with aluminum. It can "cook" steel, stainless steel, copper, cast iron, silver, gold. Of particular interest is working with the most common materials in industry and everyday life. The welding of stainless steel by argon has become very popular. It is much more reliable than soldering, since the produced seams and overlays are welded qualitatively, practically making up one piece with any product. This is a rather laborious process, requiring special training, modern equipment and quality material.

Ultimately, the strength and tightness is ensured, and the useful life of the product is increased. Welding with argon of stainless steel causes the formation of an oxide porous layer (the main component of which is chrome), which significantly weakens the metal and causes its corrosion. In order not to break the seam, after the welding is done, its additional processing.

Cast iron is a material that changes its structure when heated, so it is quite difficult to make a high-quality welding. When working with it, it is necessary to use special fluxes and rods, which are made of graphite materials. Welding of cast iron with argon allows you to make a seam that is close to its properties to the alloy itself.