Laser processing device having preprocessing controller and laser processing method
US10456869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 30, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser processing device has a preprocessing controller which issues a command to perform preprocessing of a workpiece under high output conditions, which are previously found by an experiment or calculation in accordance with at least some of processing conditions and which include the irradiation intensity and irradiation time, at which a workpiece is melted, changed in shape, or denatured; a command to irradiate the workpiece with a laser beam under low output conditions, which are previously found by an experiment or calculation in accordance with at least some of the processing conditions and which include the irradiation intensity and irradiation time, at which a workpiece is not melted, changed in shape, or denatured; and a command of whether to start the laser processing, based on a first light quantity of light reflected or emitted from a processing point irradiated with a laser beam under the low output conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.