Laser processing device capable of reducing intensity of reflected laser beam
US10730148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2017 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 9, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/60
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser processing device having a function for reducing intensity of a reflected laser beam, without stopping laser oscillation, in order to avoid a malfunction due to the reflected beam. A controller for controlling a laser oscillator has: a laser processing commanding part configured to output a laser processing command; a memory configured to store monitored intensity of the reflected beam and a laser output condition; a pre-processing commanding part configured to command a pre-processing prior to the laser processing command; a comparing part configured to compare the stored intensity of the reflected beam to a first judgment value and/or a second judgment value lower than the first judgment value; an output condition changing part configured to set or change the laser output command of the pre-processing command based on a comparison result; and a pre-processing terminating part configured to terminate the pre-processing based on a predetermined condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.