Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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Stencil cutting process by Nd:YAG laser II -Influence of process parameters on cutting characteristics of stencil-

Nd:YAG레이저를 이용한 스텐실 절단공정II -레이저의 공정변수가 스텐실 절단특성에 미치는 영향-

  • 이제훈 (한국기계연구원 레이저기술연구그룹) ;
  • 서정 (한국기계연구원 레이저기술연구그룹) ;
  • 김정오 (한국기계연구원 레이저기술연구그룹) ;
  • 신동식 (경북대학교 대학원 기계공학과) ;
  • 이영문 (경북대학교 기계공학부)
  • Published : 2001.08.01
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Abstract

This study deals with the laser cutting of stencil for the PCB. The most important aim of this study is to determine optimal conditions which make good-qualify stencil in Nd:YAG laser cutting. We made an experiment according to various variables (power. type of mask. gas pressure, cutting speed, and pulse width) and analyzed the cutting characteristics (surface roughness, kerf width. dross) . Each variable has optimal value for good-qualify cut edge under fixed condition. And neural network after learning experimental data with a million time iteration could predict surface roughness of cut edge under arbitrary condition approximately.

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