How does semi-automatic welding work?

In semi-automatic welding, a continuously supplied welding wire is automatically added to the weld point. At the same time, a protective gas is released in order to protect the molten weld pool and thus prevent oxidation and other unwanted reactions with the ambient air. The resulting welding arc, generated between the wire and the metal tube, carefully melts off the wire, as a result of which a seamless connection is created between the materials.

Advantages of semi-automatic welding

• High welding speed
• High weld quality
• Universally applicable
• Protection against oxidation
• Applicable in all welding positions

What is the difference between MIG and MAG welding?

MIG (Metal Inert Gas) welding and MAG (Metal Active Gas) welding are two closely related welding techniques that differ by the type of protective gas that is used during the welding process. MIG welding uses an inert gas, such as argon; by contrast, MAG welding makes use of an active gas, such as CO2.