Modeling of Metal Penetration Rate by a High Power Continuous Wave Laser

Shin, Wan-Soon; Koh, Hae-Seog; Park, Byung-Suh; Kang, Eung-Cheol

doi:2012.15.5.705

J. KIMS Technol > Volume 15(5); 2012 > Article

Journal of the Korea Institute of Military Science and Technology 2012;15(5):705-711.
DOI: https://doi.org/10.9766/KIMST.2012.15.5.705

Modeling of Metal Penetration Rate by a High Power Continuous Wave Laser

Wan-Soon Shin, Hae-Seog Koh, Byung-Suh Park, Eung-Cheol Kang

고출력 연속발진 레이저에 의한 금속 관통율 모델링

신완순, 고해석, 박병서, 강응철

국방과학연구소

Abstract

The purpose of this study is to develop the model to estimate the penetration rate of metal under a high power continuous wave laser irradiation. To estimate it, an empirical modeling is more practical when the penetration phenomena of metal by laser irradiation is too complex to be analyzed by the numerical simulation. When several methods published earlier were applied to our results, we found out that their methods were not appropriate as the model. Therefore, we suggested the new empirical method considering effective intensity as a key variable. As a result, we confirmed that the new method was effective to model the penetration rate of SUS304 metal and expected that it could be available to other metals.

Key Words: High Power CW Laser, Laser-material Interaction, Penetration Rate