Influence of pulse duration on effective energy on material in nanosecond pulsed laser processing of mild steel

Research output: Contribution to conferencePaper

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 languageEnglish
DOIs
Publication statusPublished - Nov 13 2017
Externally publishedYes
Event9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017 - Hiroshima City, Japan
Duration: Nov 13 2017Nov 17 2017

Other

Other9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017
CountryJapan
CityHiroshima City
Period11/13/1711/17/17

Keywords

  • Laser transmittance
  • Nanosecond pulsed laser
  • Plasma
  • Pulse duration
  • Removal volume

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Influence of pulse duration on effective energy on material in nanosecond pulsed laser processing of mild steel'. Together they form a unique fingerprint.

  • Cite this

    Ito, M., Shinonaga, T., Okamoto, Y., & Okada, A. (2017). Influence of pulse duration on effective energy on material in nanosecond pulsed laser processing of mild steel. Paper presented at 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017, Hiroshima City, Japan. https://doi.org/10.1299/jsmelem.2017.9.026