Method for fusibly bonding a coating material to a metal article
US4117302A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1975 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Jan 24, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49298
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for fusibly bonding a coating material to a metal article includes depositing such coating material in solid form on a surface of the article, substantially simultaneously thermally liquifying the coating material and the surface of the article by focusing a relatively high power continuous wave laser beam thereon, and removing the laser beam therefrom to allow cooling and hardening thereof so as to provide a solidified surface layer with a strong and relatively thin interstitial bond between the layer and the article. An exemplary engine valve with a relatively fine structure of the coating material for increased hardness is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.