Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Benchmark Study on Surface Roughness and Mechanical Properties of Rapid Prototypes

쾌속조형부품의 표면거칠기와 기계적 물성치에 관한 비교

  • 김기대 (대구가톨릭대학교 기계자동차공학부) ;
  • 김정윤 (대구가톨릭대학교 기계자동차공학부)
  • Published : 2006.08.01
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Abstract

Various kinds of rapid prototyping processes are available, such as stereo-lithography apparatus(SLA), fused deposition modeling(FDM), selective laser sintering(SLS), 3 dimensional printing(3DP), and laminated object manufacturing(LOM). In this study, benchmark tests are carried out to obtain detailed informations about surface roughness and mechanical properties of those parts. Although the patterns and roughness averages of part surface are dependent on the surface direction, the roughness of SLA part is the best and that of FDM or 3DP part is the worst. It is shown that FDM part has an advantage in impact strength, SLS(or EOS) part in compressive strength, and LOM part has an advantage in tensile strength and heat resistance, but the change of building direction in FDM and LOM processes severely weakens the tensile and impact strengths.

Keywords

References

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