Conventionally, they can be divided into several main categories. This article will be devoted to a more detailed examination of them.
Welding transformer. Such welding machines are fairly bulky equipment, mainly used for industrial work. Among the advantages of such devices are high reliability, ease of maintenance, simplicity of design, and relatively affordable price. This equipment is primarily used for joining parts made of low-alloy steels.
Welding rectifier. Welding machines of this type have a much more convenient design, but their price is slightly higher. In addition, it must be taken into account that such equipment significantly loads the power grid. It is important to note that these devices allow for high-quality welding even with minimal initial skills. With the purchase of additional equipment, rectifiers can reliably weld cast iron and non-ferrous metals. They provide a stable arc and are mainly used for joining parts made of ordinary low-alloy and stainless steels.
Welding inverter. This is an excellent choice for active use at the household level. These welding machines are compact, provide excellent weld quality, and operate on high-frequency current. In addition, they are rightly considered the most economical. However, it should be noted that such equipment requires much more careful handling during operation.
Semiautomatic welding machine. Such equipment guarantees excellent weld quality and virtually no spatter. At the same time, it has a high level of productivity. It is worth adding that with semiautomatic welding, the seam is smooth and much more protected from the negative effects of corrosion than with other types of welding. In addition, with devices of this type, you have the opportunity to precisely weld even extremely thin metal.
_