한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제25권11호
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  • Pages.126-133
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  • 2008
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

쾌속조형 시작품의 적층방향별 물성평가 및 이방성을 고려한 유한요소해석

Investigation into Directional Properties of Rapid Prototypes and Its Application to FE Analysis Considering Anisotropy

  • 박근 (서울산업대학교 기계설계.자동화공학부) ;
  • 김영수 (서울산업대학교 기계설계.자동화공학부) ;
  • 박도윤 (서울산업대학교 기계설계.자동화공학부)
  • 발행 : 2008.11.01
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초록

Rapid Prototyping (RP) has been widely used for rapid development of prototypes in various industrial fields. In recent years, a new requirement in RP industry has issued so as to directly manufacture a functional prototype which has enough mechanical properties to be used as a functional part. The RP prototype, however, has a limitation in mechanical properties due to its layer-by-layer manufacturing process. This manufacturing process results in anisotropy of the prototype, especially showing weakness in the building direction. In the present work, we performed tensile tests for RP prototypes in order to determine directional mechanical properties. The test specimens were made by using $Eden330^{TM}$ by Object Geometries Ltd. Finite element analyses considering material anisotropy were then carried out for RP prototypes with various building directions. Effect of the building direction on the mechanical strength was investigated through the analysis, and compared with experimental results.

키워드

참고문헌

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