发明名称 |
Process for preparing an aluminum alloy sheet with improved bendability and aluminum alloy sheet produced therefrom |
摘要 |
A process is described for producing an aluminum alloy sheet having excellent bendability for use in forming panels for automobiles. An aluminum alloy is used containing 0.5-0.75% by weight Mg, 0.7-0.85% by weight Si, 0.15-0.35% by weight Mn and 0.1-0.3% by weight Fe and the remainder Al and incidental impurities. The alloy is formed into ingot by semi-continuous casting and the cast alloy ingot is subjected to hot rolling and cold rolling, followed by solution heat treatment of the formed sheet. The sheet material is pre-aged by rapidly cooling from an initial pre-aging temperature of at least 80° C. to room temperature at a cooling rate of more than 5° C./hour.
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申请公布号 |
US2003015261(A1) |
申请公布日期 |
2003.01.23 |
申请号 |
US20020138846 |
申请日期 |
2002.05.02 |
申请人 |
BULL MICHAEL JACKSON;GUPTA ALOK KUMAR;LLOYD DAVID JAMES;MAROIS PIERRE HENRI;SORENSEN JOHN |
发明人 |
BULL MICHAEL JACKSON;GUPTA ALOK KUMAR;LLOYD DAVID JAMES;MAROIS PIERRE HENRI;SORENSEN JOHN |
分类号 |
B22D11/00;B22D11/049;C22C21/02;C22C21/06;C22C21/08;C22F1/00;C22F1/043;C22F1/047;C22F1/05;(IPC1-7):C22F1/04 |
主分类号 |
B22D11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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