• 제목/요약/키워드: Strin Gauge

검색결과 1건 처리시간 0.013초

밀폐 업셋팅에서 금형과 제품 변형에 관한 연구 (Study on the Deformation of Die and Product in Closed Die Upsetting)

  • 이강희;박용복
    • 소성∙가공
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    • 제8권6호
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    • pp.563-568
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    • 1999
  • The study has been performed for the relation between die and product in closed die upsetting by the experiment. The strain of die has been given by the simple experiment using the strain gauge located at the outer surface of die and the deformation history of die and product has been given by the experiment and Lame's formula. The inner pressure of die causes the deformation of die that affects the accuracy of dimension and shape of product. The product with accurate dimension and shape can be obtained by analysing elastic deformation of die during upsetting process. The deformation of die during metal forming process has been usually predicted by the experience of industrial engineers or finite element analysis. But it is difficult to predict the dimension of product at unloading and ejected states. The study has given useful result for the deformation history of die and product through the experiment and Lame's formula at closed die upsetting, and can be applied in the die design for product with accurate dimension.

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