METHOD FOR HARDENING SHEET METAL MATERIAL AND HARDENED METAL SHEET MATERIAL

摘要

Methods for hardening a metal sheet material include applying at least one peening stream to the metal sheet material, wherein at least one peening stream is applied, in each case, to a front side of the metal sheet material and a rear side of the metal sheet material, respectively, at least at times simultaneously. In one example, the metal sheet material is a stainless steel material, wherein the at least one peening stream is generated from a peening material in which at least 50% by weight of the peening material has a largest particle diameter of at least 0.8 mm and wherein the metal sheet material has a mean final surface hardness after the application of the at least one peening stream of at least approximately 300 HV.