发明名称 |
Structural component of a vehicle and method of manufacture |
摘要 |
The invention relates to a method for the manufacture of a structural component of a vehicle, starting from a HSS or UHSS steel plate with a protective coating. The method comprises the operation of subjecting the plate to a prior hot stamping formation, followed by a subsequent operation of subjecting at least one localized and previously selected zone (Z) of the hot stamped plate to a subsequent heat treatment, irradiating it with a diode laser beam of a power comprised between 500 W - 6 kW until reaching a temperature between 400-900 °C, then leaving it to cool at room temperature or at a controlled cooling rate equal to or less than 10 °C/s to change its microstructure, providing said localized zone with an intentionally lower martensite content and a lower yield strength and greater elongation in comparison with those of its adjacent zones not subjected to said heat treatment. |
申请公布号 |
EP2853609(A3) |
申请公布日期 |
2015.05.20 |
申请号 |
EP20140197596 |
申请日期 |
2011.02.04 |
申请人 |
AUTOTECH ENGINEERING A.I.E. |
发明人 |
GARCIA, MICHEL;VILA FERRER, ELISENDA;PERARNAU RAMOS, FRANCESC |
分类号 |
C21D8/04;B23K11/11;B23K11/34;C21D1/09;C21D1/673;C21D9/00;C21D9/50 |
主分类号 |
C21D8/04 |
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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