METHOD FOR MANUFACTURING MOLDED PART WITH VERY HIGH MECHANICAL PROPERTIES FORMED BY STAMPING STRIP OF COATED ROLLED STEEL SHEET AND MORE PARTICULARLY COATED HOT ROLLED STEEL SHEET

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a molded part with very high mechanical properties by stamping a strip of a rolled steel sheet coated with a metal or a metal alloy securely protecting a steel on or inside the steel plate, particularly hot rolled steel plate.;SOLUTION: This method comprises a step for providing a steel plate blank by cutting the steel plate, a step for molding the part by stamping the steel plate blank, a step for coating the surface of an alloyed intermetallic compound capable of securing a protection against corrosion and a protection against decarburization of steel and also capable of securing lubrication function before or after the stamping, and a step for removing the extra portion of the steel plate required for the stamping by cutting.;COPYRIGHT: (C)2005,JPO&NCIPI