公开(公告)号：US20160158914A1

公开(公告)日：2016-06-09

申请号：US14959578

申请日：2015-12-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuji EGAWA ,  Takashi UMEHARA ,  Hiromi TOMOTO

IPC: B24C1/10

CPC classification number: B24C1/10 ,  B21D11/02 ,  B21D25/00 ,  B21D26/00 ,  B21D31/005 ,  B21J5/00 ,  C21D7/06

Abstract: A method of shot peening according to the present invention includes: placing a jig having an appropriate dimension at one face side of a stamped workpiece; and performing shot peening on another face side of the workpiece in a state where the jig is placed at the one face side of the workpiece, and conforming the workpiece to the jig. At this time, the shot peening may be performed in such a way that residual stresses in the inner side and the outer side of the curved part of the workpiece will become compressive stresses.

Abstract translation: 根据本发明的喷丸硬化方法包括：将具有适当尺寸的夹具放置在冲压工件的一个表面侧; 并且在夹具位于工件的一个面侧的状态下对工件的另一面侧进行喷丸处理，使工件与夹具相吻合。 此时，可以以使工件的弯曲部的内侧和外侧的残余应力成为压应力的方式进行喷丸硬化。