Patent · US Active

Method and device for producing a press-quenched part

US10364476B2 · kind B2 · utility

0Cited by

0References

6Claims

0Family size

Assignee

thyssenkrupp AG · DE

Inventors

Volker Smukala · Bochum, DE
Ralf Sünkel · Ratingen, DE

Key dates

Filing date	Jun 26, 2015
Grant date	Jul 30, 2019
Priority date	—
Expiry date	Jun 7, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D9/34
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method and device for producing a press-quenched part having a rim hole with a collar formed at the periphery of the rim hole includes inserting a temperature-controlled die into the rim hole of the part. The temperature of the temperature-controlled die is controlled such that the temperature of the part in a region of the collar is held above the martensite start temperature of the material from which the part is made. While the temperature of the collar is being held above the martensite start temperature, the remainder of the part is press quenched.

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