US 11,635,117 B2 · Process for producing a protective coating on a brake side of a brake disk main element and process for producing a brake disk

Abstract

A process for producing a protective coating on a brake side of a brake disk main element includes using a laser powder build-up welding process. An NbC metal matrix powder or a Cr3C2 metal matrix powder is produced by agglomeration and sintering of NbC particles or Cr3C2 particles with particles of a metallic matrix composed of a stainless steel. During the laser powder build-up welding process, the NbC metal matrix powder or the Cr3C2 metal matrix powder and an aluminum alloy powder is supplied simultaneously to a molten surface region of the brake disk main element which has been melted by a laser.

Claims20

Dependent claims

A process for producing a protective coating at least on a brake side of a brake disk main element, the process comprising:

producing at least one of an NbC metal matrix powder and a Cr3C2 metal matrix powder by agglomeration and sintering at least one of NbC particles and Cr3C2 particles, respectively, with particles of a metallic matrix composed of a stainless steel;
and
producing a protective coating using a laser powder build-up welding process, wherein during the laser powder build-up welding process the at least one of the NbC metal matrix powder and the Cr3C2 metal matrix powder is supplied simultaneously with an aluminum alloy powder to a molten surface region of the brake disk main element melted by a laser.

Dependencies are inferred from the claim text.

Facts

Application

17/204,391Filed 17 Mar 2021

Priority

DE 102020203412.517 Mar 2020

Published

US 2021/0293292 A123 Sep 2021

Granted

25 Apr 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

B23K 26/34
Working by laser beam, e.g. welding, cutting or boring: laser welding for purposes other than joining
F16D 65/127
Discs; Drums for disc brakes: characterised by properties of the disc surface; Discs lined with friction material
B23K 26/342
Laser welding for purposes other than joining: build-up welding
F16D 65/125
Discs; Drums for disc brakes: characterised by the material used for the disc body

Process for producing a protective coating on a brake side of a brake disk main element and process for producing a brake disk

Life of this patent

Process for producing a protective coating on a brake side of a brake disk main element and process for producing a brake disk

Life of this patent

Abstract

Claims20