Metal sheet or strip for a motor vehicle component

Patent metadata

Field	Value
Publication number	US-9975310-B2
Application number	US-201514742056-A
Country	US
Kind code	B2
Filing date	Jun 17, 2015
Priority date	Jun 18, 2014
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A tailored semifinished part ( 5, 6, 7, 8, 9 ) is disclosed in the form of a metal sheet or strip which is formed from a first blank ( 1 ) and at least one second blank ( 2 ) and the first and at least one second blank are physically, frictionally and/or adhesively ( 3 ) joined to one another. The first blank ( 1 ) may be an ultrahigh-strength, monolithic material. A motor vehicle component ( 5′, 6′, 7′, 8′, 9′ ) may be made of the tailored semifinished part ( 5, 6, 7, 8, 9 ).

First claim

The invention claimed is:

1. A metal sheet or strip which is formed from a first blank and at least one second blank and the first and at least one second blank are physically, frictionally and/or adhesively joined to one another, wherein the first blank comprises an ultrahigh-strength, monolithic material, wherein the at least one second blank comprises a metallic multilayer composite and the monolithic material and/or the metallic multilayer composite has different thicknesses in regions, and is configured as a flexibly rolled metal sheet or strip, wherein the metallic multilayer composite comprises at least three metallic layers, wherein at least a metallic core layer of the at least three layers has a different composition as compared to at least one metallic covering layer.

2. The metal sheet or strip according to claim 1 , wherein the metallic core layer of the at least three metal layers has a higher strength as compared to at least one metallic covering layer.

3. The metal sheet or strip according to claim 1 , wherein at least one further blank is joined physically, frictionally and/or adhesively to the first and/or second blank, wherein the further blank comprises a metallic multilayer composite or monolithic material.

4. The metal sheet or strip according to claim 1 , wherein the first blank comprises an ultrahigh-strength steel material.

5. The metal sheet or strip according to claim 1 , wherein at least one layer of the metallic multilayer composite comprises an ultrahigh-strength steel material.

6. The metal sheet or strip according to claim 1 , wherein the first blank comprises a hardenable steel material.

7. The metal sheet or strip according to claim 1 , wherein at least one layer of a metallic multilayer composite comprises a hardenable steel material.

8. The metal sheet or strip according to claim 1 , wherein the metallic multilayer composite comprises at least three metal layers including a core layer.

9. The metal sheet or strip according to claim 8 , wherein the core layer comprises an ultrahigh-strength steel material.

Assignees

• Thyssenkrupp Steel Europe Ag
• Thyssenkrupp Ag

Inventors

• Hilfrich Erik
• Pieronek David

Classifications

• B32B15/01

  all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)} · CPC title

• B32B15/043

  of metal (B32B15/01 takes precedence) · CPC title

• Y10T428/12389

  having variation in thickness · CPC title

• B32B2605/00

  Vehicles · CPC title

• B21D35/006 Primary

  Blanks having varying thickness, e.g. tailored blanks · CPC title