发明名称 |
PROCESS FOR PRODUCING COMPONENTS HAVING REGIONS OF DIFFERING DUCTILITY |
摘要 |
The invention relates to a process for producing sheet steel components having regions of differing ductility, in which either a sheet metal plate composed of a hardenable steel alloy is used to produce a component by deep-drawing and the deep-drawn component is then at least partially austenitized by a heat treatment and subsequently quench hardened in a die or the plate is at least partially austenitized by a heat treatment and shaped in the hot state, and is quench hardened during or after this, with the sheet metal plate having a zinc-based cathodic corrosion protection coating, characterized in that in regions of a desired higher ductility of the component, at least one additional sheet is attached to the plate, situated so that during the heat treatment, the plate is heated to a lesser degree there than in the remaining region. |
申请公布号 |
EP2496371(A1) |
申请公布日期 |
2012.09.12 |
申请号 |
EP20100760952 |
申请日期 |
2010.09.14 |
申请人 |
VOESTALPINE AUTOMOTIVE GMBH |
发明人 |
SOMMER, ANDREAS;HARTMANN, DIETER;WIEMANN, MARCUS |
分类号 |
B21D22/20;B21D37/16;B21D53/88;B32B15/01;C21D1/673;C21D9/48 |
主分类号 |
B21D22/20 |
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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