Patent · US Active

Method for producing components from lightweight steel

US10214790B2 · kind B2 · utility

1Cited by

4References

8Claims

0Family size

Assignee

Salzgitter Flachstahl GmbH · DE

Inventors

Thomas Evertz · Peine, DE
Manuel Otto · Lehre, DE
Bianca Springub · Hannover, DE
Zacharias Georgeou · Wolfsburg, DE

Key dates

Filing date	May 6, 2013
Grant date	Feb 26, 2019
Priority date	—
Expiry date	Nov 7, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C38/06
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method is disclosed for producing components from an austenitic lightweight steel which is metastable in its initial state, by forming of a sheet, a circuit board or a pipe in one or more steps, exhibiting a temperature-dependent TRIP and/or TWIP effect during forming. To obtain a component with, in particular, high toughness, the forming is carried out at a temperature above room temperature, at 40 to 160° C., which avoids the TRIP/TWIP effect, and to achieve in particular high component strength, the forming is carried out at a temperature below room temperature, at −65 to 0° C., which enhances the TRIP/TWIP effect.

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