Design of girth welding system based on tungsten inert gas welding

This article studies the multi-layer and multi-pass welding of circumferential weld in thick pipe an aviation enterprise, based on static characteristics arc, through data calculations experiments to verify relationship between arc voltage length, proposes use controller accurately adjust real time, improve stability, torch wiggler expand fusion width, meet adaptive adjustment wide weld, build main control system programmable logic (PLC) control. Integrating all subsystems put them into actual production significantly improves efficiency parts welding, reduces defects, quality parts.