The plasma cutting and welding family (TIG, ARC, MIG, DC inverter machines) refers to a group of advanced metalworking machines used for cutting and joining metals with high efficiency and precision. These machines are commonly used in fabrication workshops, construction, automotive repair, and industrial production. They include different technologies: ARC (stick) welding, MIG (gas shielded) welding, TIG (argon arc) welding, and plasma cutting. Most modern units are built with DC inverter technology, which makes them compact, energy-efficient, and capable of providing stable and adjustable power output.

In operation, each function works differently but within the same system. For ARC welding, an electrode creates an electric arc that melts the metal to form a joint. For MIG welding, a continuous wire electrode is fed through a torch while shielding gas protects the weld. For TIG welding, a tungsten electrode creates a precise arc while argon gas shields the weld area, often with a separate filler rod. For plasma cutting, compressed air or gas is converted into a high-temperature plasma arc that melts and blows away metal to create clean cuts. The DC inverter system controls and stabilizes the current for all these processes, ensuring smooth performance. The operator selects the required mode, sets the appropriate current or parameters, and uses the corresponding torch or electrode to perform cutting or welding tasks efficiently.