Patent · US Active

Aluminium alloy sheet optimised for forming

US11131037B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Hydro Aluminum Rolled Products GmbH · DE

Inventors

Frank Hirschmann · Niederwerrn, DE
Kathrin Eckhard · Cologne, DE
Bernhard Kernig · Cologne, DE
Gernot Nitzsche · Meckenheim, DE
Henk-Jan Brinkman · Bonn, DE

Key dates

Filing date	Jul 26, 2018
Grant date	Sep 28, 2021
Priority date	—
Expiry date	Jul 26, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22F1/04
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a strip or sheet consisting of an aluminium alloy having a unilateral or bilateral surface structure prepared for a forming process, in particular it relates to a strip or sheet for formed motor vehicle components. The object of providing an aluminium alloy strip or sheet having a surface structure prepared for a forming process, which is easy to produce and has improved tribological characteristics in respect of a subsequent forming process, is achieved for a strip or sheet consisting of an aluminium alloy in that the strip or sheet has on one side or on both sides a surface with depressions as lubricant pockets which are produced using an electrochemical graining process.

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