Press-hardened component and associated production method
AssigneeDaimlerChrysler AG
InventorsMartin Brodt, Roland Wendler
Life of this patent
Estimating the term…
Abstract
A press-hardened component and a method for producing press-hardened components, in particular a bodywork component, from a semi-finished product made from unhardened, hot-formable steel sheet. Various process steps are carried out in the process. A component blank is formed from the semi-finished product by a cold-forming process, in particular a drawing process. The component blank is trimmed at the margin side to a margin contour which approximately corresponds to the component to be produced. The trimmed component blank is heated and press-hardened in a hot-forming tool, and then the press-hardened component blank is covered with a corrosion-prevention layer in a coating step.
Claims20
1-9. (canceled)
A process for producing a press-hardened component from a semi-finished product made of unhardened, hot-formable steel sheet, the process comprising:
- forming a component blank from the semi-finished product using a cold-forming process, the component blank including a margin contour corresponding approximately to a contour of the press-hardened component and a margin edge;
- trimming the component blank at the margin edge to the margin contour;
- heating press-hardening the trimmed component blank using a hot-forming tool;
- and
- covering the press-hardened component blank with a corrosion-prevention layer in a coating step.
A process for producing a press-hardened component from a semi-finished product made of unhardened, hot-formable steel sheet, the process comprising:
- heating and press-hardening the semi-finished product using a hot-forming tool so as to form a press-hardened component blank, having a margin contour corresponding approximately to a the press-hardened component and a margin edge;
- trimming the press-hardened component blank at the margin edge to the margin contour;
- covering the press-hardened, trimmed component blank with a corrosion-prevention layer in a coating step.
Dependencies are inferred from the claim text.