Jewelry Model Cast Elements Evolution with Alignment Angle in DuraForm Rapid Prototyping

쾌속조형 듀라폼 성형체에서의 배치각 변화에 따른 주얼리주조모형의 형상요소변화

  • Joo, Young-Cheol (Department of Mechanical Engineering, Soonchunhyang University) ;
  • Song, Oh-Sung (Department of Materials Science and Engineering, The University of Seoul)
  • 주영철 (순천향대학교 기계공학과) ;
  • 송오성 (서울시립대학교 재료공학과)
  • Published : 2001.10.20

Abstract

We fabricated test samples containing various shape elements and surface roughness checking points for the jewelry cast master patterns by employing the 3D computer aided design (CAD), selective laser sintering (SLS) rapid prototype (RP) with the DuraForm powders. We varied the alignment angle from $0^{\circ}$ to $10^{\circ}$ at a given layer thickness of 0.08 and 0.1mm, respectively, in RP operation. Dimensions of the shape elements as well as values of surface roughness are characterized by an optical microscope and a contact-scanning profilometer. Surface roughness values of the top and vertical face increased as the alignment angle increased, while the other roughness values and shape elements variation were not depending on the alignment angle. The resolution of the shape realization was enhanced as the layer thickness became smaller. The minimum diameter of the hole, common in jewelry design, was 1.2 mm, and the shrinkage became 12% at the 1.6 mm-diameter hole, Our results implied that we face down the proposed design elements with $0^{\circ}$ alignment angle, and consider the shrinkage effect of each shape element in DuraForm RP jewelry modeling.

Keywords

References

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