POSCO Holdings Inc.
METHOD FOR PREVENTING SPOT WELDING CRACK OF GALVANIZED STEEL PLATE

Abstract:

One aspect of the present invention provides a method for preventing spot welding crack of a galvanized steel plate, which can reduce crack occurring due molten zinc having a low melting point when a galvanized advanced high strength steel (AHSS) plate is spot-welded, and can thus improve welding strength and fatigue life.