The most common filler material for various types of welding is aluminum welding wire. This material is widely used in technological processes of automatic and semi-automatic welding. The continuity of the process, the high quality of the resulting seam, self-regulation of the feed rate to the welding area - these are far from all the advantages that aluminum wire has.
It is a well-known rule that the material of the parts to be welded should be similar in composition to the filler used. This condition becomes especially important, since the quality of the weld, its durability and strength depend on it.
Aluminum wire is often used to weld metals of similar composition. For example, for automatic and semi-automatic welding of materials such as alloy, carbon or stainless steel, as well as, of course, aluminum-manganese alloys and aluminum parts. Gas welding is best suited for deposition of filler wire on the seam.
Aluminum welding wire is a wire strip. This is a kind of flexiblean electrode that will perfectly replace the more fragile and expensive elements that can be used during manual processing.
Aluminum wire is made from a sheet of aluminum by drawing and then cutting into parts of the required length. Manufacturers are engaged in the implementation of many types of similar products.
Depending on the type of production, aluminum wire may have different characteristics, different requirements may be imposed on it. Therefore, the manufacturer must produce the necessary products. Whether it is aluminum wire of various lengths and cross-sections, customer requests must be satisfied.
Aluminum is a versatile material that is characterized by sufficient strength and reliability, ease of use and a high degree of flexibility, has a relatively low cost and low weight.
The following types of aluminum wire are distinguished:
- Powder.
- Copper-plated.
- Stainless.
Each of these types has its own application features. For example, the powder type is a small tube that contains a mixture of aluminum in powder form. This prevents oxidation and slag formation, and also helps to stabilize the burning electric arc. Stainless wire is used to connect chromium-containing stainless steel and nickel. In turn, copper-plated is appliedfor welding parts made of alloyed cast iron and steel, which helps to prevent metal spatter and obtain high quality welds.
To obtain a high-quality weld, not only the selected filler material is important, but also other factors such as the temperature of the weld zone and the degree of surface finish. This means that the melting temperature of the filler material must not exceed the melting temperature of the parts to be welded, while the metal surface must be clean and dry, without any oxides, scales and traces of paint.
