한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)
- 제5권3호
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- Pages.51-57
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- 2006
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- 1598-6721(pISSN)
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- 2288-0771(eISSN)
하이드로 메카니컬 펀칭공정의 전단 메커니즘
Shearing Mechanism in Hydro-Mechanical Punching Process
- 발행 : 2006.09.30
초록
Hydro-mechanical punching was developed for preventing burr formation. Circular hole punching and Finite element method(FEM) analysis were conducted to investigate shearing characteristics of this process in comparison with conventional and mechanical counter punching. In this process hydrostatic pressing with appropriate medium was utilized instead of counter punch, which resulted in the delay of the point that the fracture is initiated and clean shearing surface was obtained. FEM analysis was utilized to find out optimum processing parameters and shearing mechanism for burr-free hole punching.
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