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:
Sep. 08, 2009
Filed:
Aug. 18, 2004
Matthias Hoebel, Windisch, CH;
Bernd Fehrmann, Baden, CH;
Matthias Hoebel, Windisch, CH;
Bernd Fehrmann, Baden, CH;
ALSTOM Technology Ltd., Baden, CH;
Abstract
A method for controlled remelting of or laser metal forming on the surface () of an article () can include moving a light source and a signal capturing apparatus over the article (). The light source having a specific power can be used to melt the surface () of the article () locally and to form a melt pool (). Thereby an optical signal () is captured by the signal capturing apparatus from the melt pool (), and the monitored optical signal () is used for the determination of temperature and temperature fluctuations as properties of the melt pool (). Furthermore, a control system () with a feedback circuit is used to adjust at least one process parameter such as the power of the light source such that desired melt pool properties are obtained. Subsequently the melt pool () solidifies.