Research Status and Prospects of MIG and Hybrid Welding of Titanium and Titanium Alloys

Gas metal arc welding (MIG welding), as a significant welding method, has continuously evolved and improved alongside the expanding application of titanium alloy materials. This paper reviews the latest research progress in MIG welding and its hybrid welding technologies for titanium and its alloys. It delves into the advantages of MIG welding derivative technologies such as pulsed MIG welding, PMC MIG welding, CMT, and CMT+P, as well as hybrid welding technologies like Hot-wire TIG, LW-MIG, and PAW-MIG, in enhancing welding efficiency, improving weld quality, and addressing the limitations of traditional welding. The characteristics of each technology are summarized and compared. Furthermore, it looks forward to the future development trends of welding technologies, including process optimization, environmental protection, automation and intelligence, and the development of new welding materials and high-efficiency welding power sources, providing insights for the advancement of MIG welding and its hybrid welding technologies for titanium and its alloys.