Process and installation for producing a press-hardened sheet steel component

A pressure quenching and component technology, applied in quenching devices, manufacturing tools, heat treatment equipment, etc., can solve problems such as additional cost and reduced production speed

Inactive Publication Date: 2016-02-24
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is at this part that the production speed is reduced, which causes additional costs

Method used

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  • Process and installation for producing a press-hardened sheet steel component
  • Process and installation for producing a press-hardened sheet steel component
  • Process and installation for producing a press-hardened sheet steel component

Examples

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Embodiment Construction

[0041] figure 1 A schematic illustration of the course of a method for producing a press-hardened steel sheet component in the form of a sheet metal component consisting of a component blank formed from a hot-formable steel is shown. Component blanks are also called semi-finished products. For reasons of clarity, the method is described with reference to the production of steel or sheet metal components from component blanks. However, the method is also without difficulty particularly well suited for the mass production of such press-hardened sheet steel components.

[0042] To execute this method, set the figure 1 The device represented by 10 as a whole. The component blank is subjected to the method by means of the device 10 , wherein the component blank is heated and cooled during the method. The warming and cooling in figure 2 can be seen particularly clearly. figure 2 A graph 12 is shown, in which a time-temperature curve 14 of the component blank is plotted. The...

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Abstract

The invention relates to a process and an installation for producing a press-hardened sheet steel component, comprising the steps of: a) heating (step S1) a component blank, formed from a hot-workable steel sheet, at least to the austenitizing temperature of the steel material by means of a heating device (20), b) hot working (step S2) the component blank by means of a forming tool (24), c) cooling (step S3) the component blank in the forming tool (24) to a temperature above the material-specific martensite finish temperature, preferably to a temperature of at least 200 DEG C, d) transferring (step S4) the component blank from the forming tool (24) to a heating device (26), e) tempering (step S5) the component blank while stabilizing the austenite by means of the heating device (26), wherein the component blank is transferred directly from the forming tool (24) to the heating device (26) (step S4) while avoiding cooling of the component blank to less than the material-specific martensite finish temperature, preferably less than 200 DEG C.

Description

technical field [0001] The invention relates to a method for producing a press-hardened steel sheet component according to the preamble of claim 1 and a method for producing such a press-hardened steel component according to the preamble of claim 6 Equipment for steel plate members. Background technique [0002] The use of thermoformed components made of the material 22MnB5 is known in the series production of motor vehicles, in particular passenger cars. Such hot-formed components from hot-formable steel sheets, in particular 22MnB5, are currently produced worldwide and across manufacturers in quantities of more than 100 million pieces per year. Press-hardened sheet steel components are used in the bodywork of motor vehicles, which should have high stability in the event of an accident with no or only very small deformations. [0003] In this case, however, it is critical that the strain at break of the press-hardened component of 22MnB5 be relatively low, for example in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/04
CPCC21D1/06C21D1/673C21D6/002C21D6/005C21D6/008C21D7/13C21D8/0205C21D8/0221C21D8/0447C21D8/0452C21D9/46C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C22C38/28C22C38/32C22C38/34C22C38/38
Inventor P·福塞尔B·毛谢克T·施魏克
Owner DAIMLER AG
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