公开(公告)号：US20160339497A1

公开(公告)日：2016-11-24

申请号：US15114955

申请日：2015-02-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  John T. Carter ,  Raja K. Mishra ,  John E. Carsley

IPC: B21D22/02 ,  B21D53/88

CPC classification number: B21D22/022 ,  B21D53/88 ,  C21D1/673 ,  C22F1/04

Abstract: Methods suitable for forming complex parts from work-hardened sheet materials of limited formability are described. The formability of the work-hardened sheet is enhanced by forming at elevated temperature. The forming temperature is preferably selected to minimally undo the effects of work hardening so that the formed part is of higher strength than a like part formed from an annealed sheet. The method is applicable to age-hardening and non-age-hardening aluminum and magnesium alloys.

Abstract translation: 描述了适用于由成形性有限的加工硬化片材形成复杂部件的方法。 加工硬化片材的成型性通过在升高的温度下成形来提高。 优选选择成形温度以最小程度地消除加工硬化的影响，使得成形部件比由退火板形成的相似部件具有更高的强度。 该方法适用于老化硬化和非老化硬化铝镁合金。

公开(公告)号：US10384252B2

公开(公告)日：2019-08-20

申请号：US15114955

申请日：2015-02-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anil K. Sachdev ,  John T. Carter ,  Raja K. Mishra ,  John E. Carsley

IPC: B21D22/02 ,  B21D53/88 ,  C22F1/04 ,  C21D1/673

Abstract: Methods suitable for forming complex parts from work-hardened sheet materials of limited formability are described. The formability of the work-hardened sheet is enhanced by forming at elevated temperature. The forming temperature is preferably selected to minimally undo the effects of work hardening so that the formed part is of higher strength than a like part formed from an annealed sheet. The method is applicable to age-hardening and non-age-hardening aluminum and magnesium alloys.