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. Continuity of the process, high quality of the weld obtained, self-regulation of the feed rate to the welding area - these are not all the advantages that an aluminum wire has.
A well-known rule is 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 a 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 welding filler wire onto the seam.
Aluminum welding wire is a wire tape. This is a kind of flexible electrode that perfectly replaces the more fragile and expensive elements that can be used during manual processing.
Aluminum wire is made of aluminum sheet by drawing and then cutting into pieces of the required length. Manufacturers are engaged in the implementation of many types of similar products.
Depending on the type of production, aluminum wire can have different characteristics, different requirements can be presented to 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 universal material, which 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 inside which is an aluminum mixture in the form of a powder. This prevents oxidation and slag formation, and also helps to stabilize a burning electric arc. Stainless steel wire is used to connect chromium-containing stainless steel and nickel. In turn, copper-plated is used for welding parts from alloyed cast iron and steel, which helps to prevent metal spatter and to obtain high-quality welds.
To obtain a high-quality weld, it is important not only the selected filler material, but also other factors, such as the temperature of the weld zone and the degree of surface treatment. This means that the melting temperature of the filler material should not be higher than the melting temperature of the parts to be welded, while the metal surface should be clean and dry, without any oxides, scale and traces of paint.