公开(公告)号：US3722068A

公开(公告)日：1973-03-27

申请号：US3722068D

申请日：1971-02-22

Applicant: NORTHROP CORP

Inventor： MANCHESTER W ,  MORRIS C ,  HILL J

IPC: B21D25/02 ,  B23P17/00

CPC classification number: B21D25/02 ,  Y10S29/045 ,  Y10S72/70 ,  Y10T29/4981

Abstract: A method of forming titanium sheets and the like in which a sandwich structure consisting of a titanium sheet is placed in an envelope constructed of mild hot rolled steel, forming the sandwich structure utilizing a stretch forming operation, bracing the sandwich structure insuring that it will retain its shape during a stress-relieving operation, performing the stress relieving operation and removing the shaped titanium sheet from the envelope.

Abstract translation: 一种形成钛片等的方法，其中将由钛片组成的夹层结构放置在由温和热轧钢构成的外壳中，利用拉伸成形操作形成夹层结构，支撑夹层结构，确保其保持 其在应力消除操作期间的形状，执行应力消除操作并且从外壳去除成形钛片。