Method for producing a motor vehicle component and motor vehicle component
A technology for motor vehicles and components, applied in the direction of manufacturing tools, heat treatment equipment, quenching devices, etc., can solve the problems of high strength and limited ductility of components
Inactive Publication Date: 2014-06-18
BENTELER AUTOMOBILTECHNIK GMBH
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Problems solved by technology
This is accompanied by high strength but limited ductility of the components
Method used
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[0048] figure 1 Stress-strain diagrams are shown for steels formed according to the invention, where three different cold forming temperatures were chosen. It can be seen that the lower the selected cold forming temperature, the greater the increase in tensile strength. Thus, the steel of curve 1 is formed at room temperature and thus substantially at 20°C. The material in curve 2 was formed at -110.15°C and had significantly higher tensile strength than that formed at room temperature. The component according to curve 3 was formed at -196.15° C. and had a further significantly increased tensile strength.
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Abstract
The present invention relates to a method for producing a motor vehicle component and the motor vehicle component. Particularly, in order to produce the motor vehicle component, steel plate slabs having 10 to 40 mJ / m2 stacking fault energy and 10 to 30% manganese are provided. At room temperature, the steel plate slab material can result in the formation of bicrystal at least partially having a major austenite texture. At + 30 DEG C and -250 DEG C temperature, the steel plate slab is at least partially subject to heat treatment and then cold forming. According to the method provided by the invention, yield point and tensile strength are substantially improved, and high ductility is also achieved.
Description
technical field [0001] The invention relates to a method for producing a motor vehicle component according to the features of claim 1 . [0002] The invention also relates to a motor vehicle component according to the features of claim 12 . Background technique [0003] It is known from the prior art that self-supporting motor vehicle bodies are produced from metal components. For this purpose, vehicle pillars, door sills, roof beams and also longitudinal or cross members are first produced and then assembled into components and subsequently into complete vehicle bodies. [0004] In the course of the demand for economically operable motor vehicles, alternative materials to steel have been sought in recent decades. The above-mentioned motor vehicle body is thus made, for example, of light metal, in particular aluminium. However, this results in high manufacturing costs due to expensive raw materials and complicated processing methods. [0005] Furthermore, under simultane...
Claims
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IPC IPC(8): C21D8/02C22C38/14C22C38/12C22C38/06C22C38/04
CPCC21D2211/008C22C38/12C22C38/06C22C38/04C21D2211/001C21D1/673C21D6/04C21D7/02C21D6/005C22C38/14C21D8/0247C22C38/02
Inventor 安德烈亚斯·弗雷恩托马斯·宁多夫克里斯蒂安·吕斯英汉斯·于尔根·迈尔
Owner BENTELER AUTOMOBILTECHNIK GMBH
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