Laser beam machining head
US6417487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/348
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser beam machining head includes a dividing optical system for dividing laser light into two separate laser beams, and providing spacing therebetween; a condensing optical system for condensing the separate laser beams into condensed laser light, and projecting it onto a cutting site of an object to be cut; and an inner assist gas nozzle placed between the separate laser beams, a width of an opening of a tip portion of the inner assist gas nozzle being nearly equal to a cutting width. Or the tip opening of the inner assist gas nozzle is slender; or its tip side is inclined, and the angle of inclination is variable; or the relative positions of the inner assist gas nozzle and a workpiece, or the relative positions of the focal position of the condensing optical system and the workpiece are variable independently; or an outer assist gas nozzle surrounding the separate laser beams is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.