Patent · US Active

Cold gas spraying method

US8021715B2 · kind B2 · utility

7Cited by

7References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jens Dahl Jensen · Berlin, DE
Ursus Krüger · Berlin, DE
Raymond Ullrich · Delbrück, DE

Key dates

Filing date	Jan 30, 2006
Grant date	Sep 20, 2011
Priority date	—
Expiry date	Jan 6, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2203/1344
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for coating a workpiece by cold gas spraying is carried out using a cold gas spray nozzle which generates a particle jet that is directed onto the surface. Additional energy is introduced into the layer that is being formed by way of an electromagnetic energy source, e.g. a laser, which the energy introduced into the particles by the cold gas spray nozzle also contributes to forming the layer. The cold spraying process can be used flexibly as a result of the additional activation by way of electromagnetic radiation. Moreover, layers having a complicated structure, e.g. strip conductors, can be created with the aid of the laser without further processing. A coating unit includes a generator for electromagnetic radiation in addition to the cold gas spray nozzle and is therefore suitable for carrying out the novel method.

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