Abstract
Laser cutting with multibeam diffraction pattern using an
adaptive optics is studied. Infrared (IR) continuous
single-mode fiber laser with maximum power of 200W is
applied to laser cutting of thin metal sheets, together
with liquid crystal on silicon spatial light modulator
(SLM). SLM can be used as the adaptive diffractive
optical element, which can modify intensity profile of
the laser beam almost arbitrary. In studies single
Gaussian laser beam was divided into multiple spots. It
was found out that with this way it is possible to
enhance the cutting quality and also decrease pressure of
the needed assist gas. Multibeam configuration enabled to
laser cut burr free with 50% less protection gas pressure
compared to single beam laser cutting with conventional
optics.
| Original language | English |
|---|---|
| Article number | 032008 |
| Journal | Journal of Laser Applications |
| Volume | 26 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- laser cutting
- adaptive optics
- diffractive optical element