Method for producing a component by hot forming a pre-product made of steel

US9943894B2 · kind B2 · utility

Assignee

• Salzgitter Flachstahl GmbH · DE

Inventors

• Thomas Evertz · Peine, DE
• Volker Flaxa · Salzgitter, DE
• Michael Braun · Altensteig, DE

Key dates

• Filing date: Jul 4, 2012
• Grant date: Apr 17, 2018
• Expiry date: Aug 3, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D1/673
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a method for producing a component by hot forming of a pre-product made of steel, the pre-product is heated to forming temperature and subsequently formed. The product is heated to a temperature below the AC1-transformation temperature and undergoes a strength increase prior to the heating by cold forming.