公开(公告)号：US20190143398A1

公开(公告)日：2019-05-16

申请号：US15814657

申请日：2017-11-16

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Nathaniel Hansen ,  Phillip Schroeder ,  Roger L. Moyer ,  Michael A. Kopmanis

IPC分类号： B21H7/18 ,  B24B39/04 ,  C21D9/30 ,  C21D1/58 ,  C21D1/08 ,  C21D1/42

摘要： An automotive shaft fillet treating method including laser hardening a green machined fillet surface to a uniform depth d to induce compressive stresses into the surface, the surface extending the entire length l between outer edges of two undercut regions of the fillet, and applying additional compressive stress to the laser hardened surface via fillet rolling such that the uniform depth d is maintained along the entire length l during a subsequent grinding operation.