LASER WELDING METHOD FOR PLATING STEEL SHEET

摘要

PURPOSE: A laser welding method for a plated steel sheet is provided to uniformly maintain welding quality by easily discharging welding gas occurred during welding. CONSTITUTION: A laser welding method for a plated steel sheet is as follows. Multiple circular dimples(D) are simultaneously molded in a plated steel sheet. A gas discharging gap(G) is formed between the overlapped plated steel sheet(P1,P2). The plated steel sheet is loaded on a jig(15). The plated steel sheet is welded using a laser beam.