Patent · US Active

Method for producing a motor vehicle axle component

US9475107B2 · kind B2 · utility

0Cited by

0References

14Claims

0Family size

Assignee

BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

Andreas Frehn · Ritterhude, DE
Ralf Ilskens · Paderborn, DE
Dominik Howekenmeier · Verl, DE
Jeffrey Michael Hatt · Livonia, US

Key dates

Filing date	Feb 4, 2014
Grant date	Oct 25, 2016
Priority date	—
Expiry date	Feb 28, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2261/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for producing a motor vehicle axle component includes the method steps of providing a metal strip made of a hardenable steel material, hot rolling the metal strip and subsequent cold rolling with more than 4% rolling reduction degree, annealing at 600 to 800° C., in particular at 650 to 750° C. for a time period between 10 and 20 hours, in particular 13 to 17 hours, cutting the heat treated metal strip to cut sheet metals, forming the metal cut into a motor vehicle axle component, austenizing and quenching the motor vehicle axle component, wherein the motor vehicle axle component has at least in a surface region a grain size characteristic value according to ASTM-E 112 of greater than 9.

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