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Benchmark Study on Surface Roughness and Mechanical Properties of Rapid Prototypes  

Kim Gi-Dae (대구가톨릭대학교 기계자동차공학부)
Kim Jung-Yun (대구가톨릭대학교 기계자동차공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.15, no.4, 2006 , pp. 56-62 More about this Journal
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
Rapid prototyping; Benchmark test; Surface roughness; Mechanical properties; Building direction;
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Times Cited By KSCI : 2  (Citation Analysis)
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