MANUFACTURING METHOD FOR FRONT-SIDE MEMBER OF ULTRAHIGH-STRENGTH STEEL, CAPABLE OF IMPROVING THE ENDURING PERFORMANCE AGAINST HEAD-ON COLLISION

摘要

PURPOSE: A manufacturing method for front-side member of ultrahigh-strength steel is provided to improve the enduring performance against head-on collision and to reduce vehicle weight and elements. ;CONSTITUTION: A manufacturing method for front-side member of ultrahigh-strength steel comprises the next step. The base material of a front-side member(1) is manufactured by roll-forming a ultrahigh-strength steel material. The base material of the front-side member is bent on a vertical flat surface. The base material of the front-side member, which is bent in a first bending process, is secondly bent on a horizontal flat surface. The base material of the front-side member, which is bent in a second bending process, is finished.;COPYRIGHT KIPO 2011