Patent · US Expired

Method and device for producing a metal strip for tailored blanks to be cut to length

US6536254B1 · kind B1 · utility

9Cited by

6References

20Claims

0Family size

Assignee

thyssenkrupp AG · DE

Inventors

Rudolf Kawalla · Bottrop, DE
Friedrich Behr
Hans-Peter Schmitz · Mönchengladbach, DE

Key dates

Filing date	Jun 18, 2001
Grant date	Mar 25, 2003
Priority date	—
Expiry date	Jun 18, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B2205/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for the production of tailored blanks by the hot rolling of a strip and to an apparatus for the performance of said process. To obtain tailored blanks to be cut to length from the rolled strip, the hot strip is cooled or heated in portions, so that with a substantially constant rolling force the strip undergoes a differential decrease in thickness in the individual portions, which have been given a differential yield stress value by the differential temperature adjustment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.