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

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Effects of Dimension of Part and Structure of Supports on the Shape Error in Stereolithography Process

SL 광조형 공정에서 제작물 치수와 지지대 구조가 형상오차에 미치는 영향

  • 김기대 (대구가톨릭대학교 기계자동차공학부)
  • Published : 2006.06.01
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Abstract

During stereolithography processes, the shape errors such as curl distortion and distortion of side face are generated due to the shrinkage of liquid resins. In this study, the effects of dimension of part and structure of supports on the shape error are examined. Cubic specimens which have different thicknesses are manufactured and their deformations are measured with CMM. Thicker part generates smaller curl distortion of top face and larger of bottom face. Also thicker part generates larger distortion of side face until part thickness increases to about 20mm. Larger stiffness of supports which is obtained by shorter spacing of the supports and line type contact instead of point type contact generates smaller shape error of the part.

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References

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