Sheet metal processing method using laser beams and direct diode laser processing device for carrying it out
US10118256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2015 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Sep 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4087
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Using a transmission fiber for transmitting laser beams of multiple wavelengths oscillated by a DDL module, and a laser processing machine for cutting a sheet metal with a processing head that condenses the laser beams of multiple wavelengths and irradiates them onto the sheet metal, a mild steel plate or an aluminum plate is cut, and by cutting a mild steel plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm, a surface roughness (Ra) of a cut surface of the cut mild steel plate is less than or equal to 0.4 μm, and when an aluminum plate with a thickness greater than or equal to 1 mm and less than or equal to 5 mm is cut, a surface roughness (Ra) of a cut surface of the cut aluminum plate is less than or equal to 2.5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.