Method of controlled remelting of or laser metal forming on the surface of an article
US7586061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Jan 23, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for controlled remelting of or laser metal forming on the surface (5) of an article (1) can include moving a light source and a signal capturing apparatus over the article (1). The light source having a specific power can be used to melt the surface (5) of the article (1) locally and to form a melt pool (7). Thereby an optical signal (13) is captured by the signal capturing apparatus from the melt pool (7), and the monitored optical signal (13) is used for the determination of temperature and temperature fluctuations as properties of the melt pool (7). Furthermore, a control system (16) 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 (7) solidifies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.