Patent · US Active

Diamond hard coating of ferrous substrates

US7458765B2 · kind B2 · utility

10Cited by

9References

40Claims

0Family size

Assignees

Fraunhofer USA · US
Fraunhofer IWS · DE

Inventors

Eric Stiles · Ann Arbor, US
Thomas Himmer · Reichenbach, DE
James Herbison · Edmonton, CA
Anja Techel · Dresden, DE

Key dates

Filing date	Sep 23, 2005
Grant date	Dec 2, 2008
Priority date	—
Expiry date	Jul 7, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12951
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present invention relates to hard coating of ferrous metal substrates using a laser beam with diamond particles in a metal matrix produced from precursor powders of metals which bond to the diamond particles and to the ferrous substrate. The hard coating is particularly useful for white iron castings for pumps (200) used in piping tar sand and water mixtures.

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