A welding machine is a machine that helps to assemble or remove metal parts by melting them with thermal energy. A welding machine is a useful tool for people in the welding industry. It produces heat that helps dissolve the metal to give it a different shape or combine metal with any other metal or metal.
MIG (metal inert gas) welding uses a feed wire that constantly moves through the gun to create the spark, then melts to form the weld. It uses a semi-automatic or automatic arc. SOURCE. TIG (tungsten inert gas) welding uses long rods to fuse two metals directly together.