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Patent Searching and Data


Title:
HOT FORMING PROCESS FOR METAL ALLOY SHEETS
Document Type and Number:
WIPO Patent Application WO/2009/117250
Kind Code:
A8
Abstract:
Magnesium and other metal alloy sheet materials are deformed at hot forming temperatures into vehicle body panels and other articles. Many such hot forming operations are improved in speed and product quality by predetermining a static recrystallization temperature of the sheet material. As the sheet material is being heated to its hot forming temperature, deformation is commenced below the static recrystallization temperature. As heating and deformation are continued, dynamic recrystallization of the workpiece occurs and deformation may proceed faster and to a greater extent.

Inventors:
CARTER JON T (US)
KRAJEWSKI PAUL E (US)
VERMA RAVI (US)
LASCESKI JOSHUA D (US)
Application Number:
US2009/035968
Publication Date:
September 24, 2009
Filing Date:
March 04, 2009
Export Citation:
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Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS, INC. (300 Renaissance Center, P.O. Box 300Detroit, MI, 48265-3000, US)
International Classes:
B21D22/00; B21D11/02; B21D22/20; B21D37/16; B30B15/34
Attorney, Agent or Firm:
CICHOSZ, Vincent, A. (Cichosz And Cichosz, PLLC129 E. Commerce Stree, Milford MI, 48381, US)
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