Patent · US Active

Method of press hardening a steel sheet blank

US8968496B2 · kind B2 · utility

9Cited by

0References

6Claims

0Family size

Assignee

Gestamp Hardtech AB · SE

Inventors

Jan Larsson · Luleå, SE
Paul Akerstrom · Luleå, SE
Daniel Berglund · Norrfjärden, SE

Key dates

Filing date	Feb 17, 2011
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Feb 10, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2221/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

In a press-hardening plant, a contact-cooling press (12) is provided between the furnace (11) and the press-hardening press (13). Preselected parts of the blank (18) are contact-cooled such that corresponding parts of the finished product are softer and display a lower yield point.

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