High-Speed GMAW and Laser GMAW Hybrid Welding of Steel Sheet

摘要

Arc welding is the most widely used set of joining technologies in industry today.The automotive tier supplier network and light manufacturing are significant users ofarc welding, particularly gas metal arc welding (GMAW) and pulsed GMAW(GMAW-P). For sheet metal welding the majority of welds are single pass filletwelds on T-butt, lap, or edge joints. A fundamental problem and limitation to the useof higher travel speeds in GMAW is the phenomenon of weld bead humping, a weldprofile defect with a wavelike profile to the weld bead that has peaks and troughs inthe longitudinal direction. Cont/d.