Method of laser quenching
US5182433A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Oct 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D1/09
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of laser transformation hardening adapted to irradiate a laser beam in a sense of P polarization on a work piece at an angle of incidence to a surface of the work piece of 60.degree. or more which comprises steps of: forming a plurality of triangular ridges on a horizontal plane adjacent to a surface of the work piece, having a first plurality of inclined surfaces inclined at a first angle to the horizontal plane and a second plurality of inclined surfaces inclined at a second angle to the horizontal plane, the first angle being smaller than the second angle; and irradiating the laser on the work piece at the angle of incidence to the surface of the work piece of 65.degree. to 70.degree. from a direction on the side of the second plurality of inclined surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.