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Method for producing a motor vehicle component and motor vehicle component

Inactive Publication Date: 2013-06-27
BENTELER AUTOMOBILTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patent describes a method for producing a hot formed, press hardened component with a surface that can be directly further processed without prior jetting. The method involves heating an alloy to a temperature above austenization temperature and then cooling it quickly to a temperature between 300 and 450°C. This results in a structure with a combination of an austenitic and bainitic structure, which prevents premature scaling and enables decreasing energy costs. The produced motor vehicle component has a high strength and resistance against mechanical stresses, and can be galvanized. The technical effect of this patent is a more efficient and cost-effective method for producing high-quality hot formed components.

Problems solved by technology

The hot formed and press hardened components do not only have advantages but due to their hard and partly brittle properties also certain disadvantages.

Method used

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  • Method for producing a motor vehicle component and motor vehicle component
  • Method for producing a motor vehicle component and motor vehicle component

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Embodiment Construction

[0040]Throughout all the figures, same or corresponding elements are generally indicated by same reference numerals. These depicted embodiments are to be understood as illustrative of the invention and not as limiting in any way. It should also be understood that the drawings are not necessarily to scale and that the embodiments are sometimes illustrated by graphic symbols, phantom lines, diagrammatic representations and fragmentary views. In certain instances, details which are not necessary for an understanding of the present invention or which render other details difficult to perceive may have been omitted.

[0041]Turning now to the drawing, and in particular to FIG. 1, there is shown a heat treatment system 1 with a heating station 2 in which the blank 3 is heated to above austenization temperature T1. For this, an austenization temperature T1 of preferably between 900 and 1000° C. is present in the heating station 2. The heating station 2 can for example be a pizza oven, a condu...

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Abstract

A method for producing a motor vehicle component having two regions, with different strength is disclosed. A first one of the two regions has a high strength and a second one of the two regions has a higher ductility and lower strength relative to the first region. In a motor vehicle component produced with the method, the first region has a strength between 1400 and 1600 MPa at a breaking elongation A5>13% and the second region has a tensile strength between 950 and 1050 MPa at a breaking elongation A5>16%.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application claims the priority of German Patent Application, Serial No. 10 2011 057 007.1, filed Dec. 23, 2011, pursuant to 35 U.S.C. 119(a)-(d), the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates to a method for producing a motor vehicle component and motor vehicle component.[0003]The following discussion of related art is provided to assist the reader in understanding the advantages of the invention, and is not to be construed as an admission that this related art is prior art to this invention.[0004]For producing motor vehicle components, the hot forming and press hardening technology has become established in recent years with which it is possible to produce motor vehicle components from hardenable steel alloys which have particularly high strength at a low own weight. Hot formed and press hardened components are used in particular as crash relevant compone...

Claims

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Application Information

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IPC IPC(8): C21D9/00
CPCC21D9/00C21D9/46C21D7/13C21D6/005C21D1/673C21D2221/00
Inventor BAKE, KARSTENBUSCHSIEWEKE, OTTOSAHEBKAR, BAHMAN
Owner BENTELER AUTOMOBILTECHNIK GMBH
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