In modern industry or construction, stainless steel welding is the main process of building structures. However, this process cannot be called easy and hassle-free. Stainless steel is much more difficult to weld than carbon steel. It's about the properties of the metal. For example, electrical resistivity is very high, but thermal conductivity is quite low.
There are several methods for joining metals. For example, for metal whose thickness is more than 1 cm, stainless steel flux-cored arc welding is used. The flux protects the joint from air. Additionally, an electrode wire is used.
You can also use roller welding of metal. It is produced by sequential formation of points, and the interval of their formation is controlled. How the device will work depends on the location of the points and the step between them.
To join metals, resistance spot welding of stainless steel is also used. To complete the process, low-voltage pulses are used.current. They are short. But the resistance when using this type of metal compound is very high.
High-frequency currents can also be used to complete the process. Laser welding of stainless steel is provided by a laser beam. Thanks to him, you can achieve a high degree of heat concentration at one point. When using this type of connection, there is no large loss of molten metal. Although this type is not cheap, it is very effective and bonds materials together strongly.
If the sheets of metal are thin, then the arc welding method can be used. However, the most effective joining of steels is plasma soldering. The type shown is the newest and most efficient type so far.
Welding of stainless steels also has its own characteristics. There are materials that become brittle after processing, and structures based on them become dangerous, as they can simply fall apart. In order to prevent intergranular corrosion from occurring or to a very small extent, it is necessary to reduce the precipitation of carbides during welding.
The material joining process uses different electrodes to weld stainless steel. For example, elements with a protective alloy coating are used to work with high-alloy metals. The fact is that in this case the seam is more reliable, and the properties of the metal in the joint area practically do not differ from the generalproperties of stainless steel.
Also, the use of electrode elements depends on the type of welding. For example, consumable and non-consumable tungsten elements are used for argon-arc. Moreover, each species is used in precisely defined conditions.
It should also be noted that modern industry and progress in the technological field contribute to the improvement of the stainless steel welding process. However, even now the connecting seam on metals is strong enough and makes the structure durable and resistant.
