The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2010
Filed:
Mar. 04, 2005
Matthias Hoebel, Windisch, CH;
Edward Obbard, Jersey, GB;
Alexander Schnell, Ennetbaden, CH;
Alstom Technology Ltd, Baden, CH;
Abstract
It is disclosed a method of applying a coating () with a controlled laser metal forming process. A light source with a specific power and a signal capturing apparatus is moved over an article () to form locally a melt pool () on the surface () of the article () to which a coating powder () is injected. An optical signal () is captured from the melt pool (), and the monitored optical signal () is used for the determination of the temperature and temperature fluctuations of the melt pool (). Furthermore, a control system () is used to adjust at least one process parameter such as the power of the light source to obtain desired melt pool properties. Subsequently the melt pool () solidifies. The high degree of control over the microstructure provides an efficient tool for generating laser metal formed hard coatings () with optimised wear properties.