The welding technology and equipment of MIG/MAG and TIG

which are widely applied

have been modified with high efficiency by composite/hybrid welding. It is beneficial to realize high quality and high efficiency welding with low cost

high quality

high depositing rate and high welding speed

and is of great significance to improve the manufacturing efficiency of welding technology. In recent years

MIG/MAG

TIG and other arc welding technologies and equipment with high efficiency have been introduced at home and abroad. In this paper

the principle and application of high efficiency welding technology of double arc pool

such as double wire MIG/MAG welding

double MIG/MAG double-sided welding

double TIG composite welding and TIG-MIG composite welding are summarized. Finally

the new technology of MAG-TIG double arc heat source composite high-efficiency root welding is introduced emphatically.