Method for producing a motor vehicle component by hot cutting
AssigneeBenteler Automobiltechnik GmbH
InventorsChristian BUSE, Guenter FORTMEIER, Oliver LUETKEMEYER, Feng JIAO
Life of this patent
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Abstract
A motor vehicle component produced by hot forming and press hardening from a hardenable steel sheet plate, and the motor vehicle component has a reinforcement patch which forms a double layer with the steel sheet plate at least in sections. The motor vehicle component has an opening in the region of the reinforcement patch, such that one opening is formed in the reinforcement patch and one opening in the steel sheet plate, and one of the two openings is larger than the other and that the smaller opening is introduced during or after hot forming.
Claims17
1-10. (canceled)
A method of making a motor vehicle component, the method comprising:
- forming a first opening in one of a hardenable steel sheet plate and a reinforcement patch;
- coupling the steel sheet plate and the reinforcement patch so the steel sheet plate and the reinforcement patch form a double layer;
- heating the steel sheet plate and the reinforcement patch to above Ac3 temperature;
- hot forming the steel sheet plate and the reinforcement patch into the motor vehicle component;
- hot cutting of a second opening smaller than the first opening by a cutting tool which cuts through the first opening, wherein the hot cutting is performed during or after the hot forming;
- and
- press hardening of the motor vehicle component.
Dependencies are inferred from the claim text.