发明名称 Press-hardened component and method for the production of a press-hardened component
摘要 A method for the production of press-hardened components, in particular a vehicle body component, from a semifinished product ( 2 ) made of unhardened, hot-workable steel sheet. A component blank ( 10 ) is formed from the semifinished product ( 2 ), pre-coated with a first coating ( 33 ), by a cold-forming method, in particular a drawing method. The component blank ( 10 ) is trimmed at the margins to a marginal contour ( 12 ') approximately corresponding to the component ( 1 ) to be produced. The trimmed component blank ( 17 ) is heated and press-hardened in a hot-forming tool ( 23 ); then the press-hardened component blank ( 18 ) is covered with a second, anticorrosion coating ( 34 ) in a coating step.
申请公布号 US2007175040(A1) 申请公布日期 2007.08.02
申请号 US20040565037 申请日期 2004.07.20
申请人 DAIMLERCHRYSLER AG 发明人 BAYER MICHAEL;BRODT MARTIN
分类号 B21D53/88;B21D35/00;B23P25/00;C21D1/673;C21D9/46;C23C2/26;C23C10/60 主分类号 B21D53/88
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