Abstract
In nanosecond pulsed laser processing, laser beam irradiation normally induces plasma generation, which leads to the reduction of laser energy absorbed into a specimen. Therefore, material removal characteristics are strongly affected by phenomenon of laser induced plasma. Plasma generation is affected by pulse duration and laser intensity, but influence of plasma generation on material removal characteristics has not yet been clarified sufficiently. In this study, influence of pulse duration and laser intensity on plasma was investigated by measurements of transmittance of laser energy through the plasma. Finally, effective energy to material removal characteristics was discussed with calculated laser energy relating to removal volume of mild steel.
| Original language | English |
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| DOIs | |
| Publication status | Published - Nov 13 2017 |
| Externally published | Yes |
| Event | 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 - Hiroshima City, Japan Duration: Nov 13 2017 → Nov 17 2017 |
Other
| Other | 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 |
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| Country/Territory | Japan |
| City | Hiroshima City |
| Period | 11/13/17 → 11/17/17 |
Keywords
- Laser transmittance
- Nanosecond pulsed laser
- Plasma
- Pulse duration
- Removal volume
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering