Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Optimization of selective laser sintering process parameter for Fe-Ni-Cr coating fabrication

Fe-Ni-Cr 코팅층 형성을 위한 SLS 공정변수의 최적화

  • 주병돈 (부산대학교 정밀기계공학과) ;
  • 장정환 (부산대학교 정밀기계공학과) ;
  • 임홍섭 (부산대학교 정밀기계공학과) ;
  • 손영명 (부산대학교 정밀기계공학과) ;
  • 문영훈 (부산대학교 정밀기계공학과/정밀정형 및 금형가공연구소)
  • Published : 2009.05.07
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Abstract

Selective laser sintering(SLS), a kind of rapid prototyping technology, can provide a process to form many types of coatings. Coated layers by selective laser melting are highly influenced by substrate, powder and laser parameters such as laser power, scan rate, fill spacing and layer thickness. Therefore an attempt to fabricate Fe-Ni-Cr coating on AISI H13 tool steel has been performed by selective laser sintering. In this study, Fe-Ni-Cr coating was produced by experimental facilities consisting of a 200W fiber laser which can be focused to 0.08mm and atmospheric chamber which can control atmospheric pressure with Ar. With power increase or energy density decrease, line width was decreased and line surface quality was improved with energy density increase. Surface quality of coating layer was improved with fill spacing optimization or layer thickness decrease.

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