Fine processing method for a material of sintered diamond with a laser beam, a cutter wheel for a substrate made of a brittle material and its producing method thereof
US8324528B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Aug 15, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a manufacturing method for accurate, fine and efficient processing of a work piece to be processed and prevention of graphitization of the work piece to be processed, when sintered diamond is processed by a laser beam.The method provides process comprising steps of (a) irradiating outer circumference of a scribing wheel 2 with a laser beam from the side of the wheel, (b) moving the laser beam relative to the wheel 2, (c) forming continuously along the circumferential direction in the required space fine grooves with openings directed radially on a ridge site, (d) irradiating the laser beam onto the site to be processed at a speed of the laser beam relative to the work piece, and (e) forming the work piece into a minute shape within a depth of less than 200 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.