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Hot-working material, component and use

A thermoforming, three-layer material technology, applied in metal material coating process, heat treatment furnace, thin material processing and other directions, can solve problems such as poor ductility

Active Publication Date: 2019-12-27
THYSSENKRUPP STEEL EURO AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After press quenching, there is a remaining difference in residual ductility between the uncoated and AlSi-coated material for both materials

Method used

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  • Hot-working material, component and use
  • Hot-working material, component and use
  • Hot-working material, component and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0076] A thermoformed material with a three-layer material composite was produced from a commercially available flat steel product by hot rolling cladding. The steels given in Table 1 were used as cladding layers D1-D3 and the steels given in Table 2 were used as core layers K1-K6. The tensile strengths listed in Tables 1 and 2 are in the press-quenched condition. A total of 24 different thermoforming materials (I-1 to IV-6) were ranked, see Table 3. In 18 of the thermoformed materials (I-1 to III-6), each covering layer had a material thickness of 10% per side based on the total material thickness of the thermoformed material, while in the thermoformed materials (IV-1 to In IV-6), the material thickness of the cover layer is only 5% per side based on the total material thickness of the thermoformed material.

[0077] In this case, two cover layers and a core layer arranged in between are stacked on top of each other to form individual sheet blanks (Blechzuschnitte), wherein a...

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Abstract

The invention relates to a hot-working material made of a three-layer material composite comprising a core layer made of a hardening steel having a tensile strength > 1600 MPa and / or a hardness > 490HV10, in particular a tensile strength > 700 MPa and / or a hardness > 520 HV10 in the press-hardened state, and comprising two cover layers integrally connected to the core layer and made of a weak steel which has a tensile strength corresponding to max. a quarter of the tensile strength of the core layer in the press-hardened state, and which is provided with an anti-corrosion coating, in particular an aluminium-based coating on one or both sides. The invention also relates to a component and a corresponding use.

Description

technical field [0001] The invention relates to a thermoformable material consisting of a three-layer material composite. Background technique [0002] New solutions are being sought in the automotive industry to reduce the weight of vehicles and thus reduce fuel consumption at the same time. Lightweight construction is an important element in order to be able to reduce the weight of the vehicle. [0003] This can additionally be achieved by using materials with increased strength. As strength increases, generally its ability to bend decreases. In order not only to achieve the increased strength of the lightweight construction but also to ensure the necessary occupant protection of crash-related components, it must be ensured that the materials used can transform the energy introduced by the crash through deformation. This is conditional on a high level of deformability, especially in crash-related components of the vehicle structure. One possibility for saving weight is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01C22C38/02C22C38/04C22C38/06C22C38/22C22C38/26C22C38/28C22C38/32C22C38/38
CPCB32B15/011B32B15/012C23C2/12C22C38/02C22C38/04C22C38/06C22C38/22C22C38/26C22C38/28C22C38/32C22C38/38C21D2251/02C21D9/46C22C38/001C22C38/002C22C38/24C22C38/08C22C38/44C22C38/46C22C38/16C22C38/54C22C38/48C22C38/42C22C38/10C22C38/40C22C38/105C22C38/30C22C38/52C22C38/12C22C38/58C22C38/18C22C38/50C22C38/14C22C38/20C23C2/04C23C28/023Y10T428/12799Y10T428/2495Y10T428/12972C23C30/005B32B15/043Y10T428/12965Y10T428/12757Y10T428/12951B32B15/013Y10T428/24942Y10T428/26B32B15/18C23C28/02C23C28/021Y10T428/12958C23C28/025B32B15/04C23C30/00
Inventor 延斯-乌尔里克·贝克尔斯特凡·米斯洛维奇
Owner THYSSENKRUPP STEEL EURO AG