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Method for producing a press-quenched component, and press mold

a press-quenching component and press-quenching technology, which is applied in the direction of shaping tools, heat treatment equipment, furnaces, etc., can solve the problems of not being able to work blanks with drawing beads or drawing strips, and achieve the effects of avoiding irregularities, reducing martensitic properties, and avoiding irregularities

Inactive Publication Date: 2018-08-02
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about a method for making blanks with drawing beads using press-quenching. By heating the region of the blank where the drawing bead is located, the component develops less martensitic properties and the material flow remains unobstructed. This makes it possible to apply sufficient retention forces to avoid irregularities in the component during the pressing procedure. The heating temperature should be controlled to ensure good formability in the region of the drawing bead. The use of boron steel or other suitable blanks, such as Tailor Welded Blanks, Tailor Rolled Blanks, or Tailor Tempered Blanks, can provide weight-reduced options without compromising the design. A thermal insulation layer can be added between the heatable and other segments to avoid heat exchange between them.

Problems solved by technology

A drawback of the above-described method is that it cannot be used to work blanks having drawing beads or drawing strips.

Method used

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  • Method for producing a press-quenched component, and press mold
  • Method for producing a press-quenched component, and press mold
  • Method for producing a press-quenched component, and press mold

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Embodiment Construction

[0031]The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0032]FIG. 1 and FIG. 2 shows an exemplary form of a press mold 1 according to the present disclosure. The press mold 1 comprises a die 2 and three punches 3, 3′, wherein the die 2 has recesses 4 that are designed and arranged such that they form the counterpart to the punches 3 during the press-quenching procedure. The press mold 1 comprises three segments 5, 6 and 7, wherein segments 5 and 7 are in heated regions 5′, 7′ of the press mold 1, and segment 6 is arranged in a cooled region 6′.

[0033]In order to produce the component, the heated blank 8 is arranged between the die 2 and the punches 3, 3′. Then, the die 2 and the punches 3, 3′ are brought together so that the blank 8 is formed into the desired component...

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Abstract

The present disclosure relates to a method for producing a press-quenched component from a hot-formable steel sheet blank, in which, in a first step, the blank is heated to a temperature of approximately 900° C. and, in a second step, the blank is arranged in a press mold and formed, wherein a drawing bead is created on the blank and the region of the press mold in which the drawing bead is arranged is heated prior to introduction of the blank into the press mold. The present disclosure also relates to a press mold for the above method.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of German Application Number 102017201674.4 filed on Feb. 2, 2017. The disclosure of the above application is incorporated herein by reference.FIELD[0002]The present disclosure relates to a method for producing a press-quenched component from a hot-formable steel sheet blank. The present disclosure also relates to a press mold for a method for producing a press-quenched component.BACKGROUND[0003]The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.[0004]In order to satisfy the high requirements for components, in particular automotive body parts, with respect to stiffness and strength, these components are made of high-strength to ultra high-strength steel construction materials. The components are often produced in a hot-forming process in which a blank is first cut from a coil. This blank is heated to a ...

Claims

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Application Information

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IPC IPC(8): C21D1/673B21D22/02C21D9/46
CPCC21D1/673B21D22/022C21D9/46C21D2221/00B21D22/208B21D22/22B21D37/10B21D37/16C21D8/005
Inventor GHOUATI, OMAR
Owner FORD GLOBAL TECH LLC