公开(公告)号：US20180354014A1

公开(公告)日：2018-12-13

申请号：US15780335

申请日：2016-12-08

Applicant: ArcelorMittal

Inventor： Ivan VIAUX ,  Ives DROUADAINE

IPC: B21D22/02 ,  B62D25/04 ,  B62D25/02 ,  B62D65/02 ,  B21D47/01 ,  B23K26/28

CPC classification number: B21D22/022 ,  B21D47/01 ,  B23K26/28 ,  B62D25/02 ,  B62D25/04 ,  B62D65/02

Abstract: A method for producing an inner automotive structural part containing localized reinforced areas, the method containing the steps of: providing an inner upper front pillar blank, an inner center pillar blank and an inner side rail blank, hot stamping the inner upper front pillar blank, hot stamping the inner center pillar blank, hot stamping the inner side rail blank, wherein, the method contains, prior to the hot stamping steps, the steps of: attaching an inner upper front pillar reinforcement blank to a part of the inner upper front pillar blank, said inner upper front pillar reinforcement blank being hot stamped together with the inner upper front pillar blank, attaching an inner center pillar reinforcement blank to a part of the inner center pillar blank, said inner center pillar reinforcement blank being hot stamped together with the inner center pillar blank.