소성∙가공 (Transactions of Materials Processing)

  • 제13권1호
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  • Pages.3-8
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  • 2004
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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냉간 단조품의 치수 정밀 예측을 위한 유한 요소 해석 기술

FE Techniques for the Accurate Prediction of Part Dimension in Cold Forging

  • 이영선 (한국기계연구원 공정연구부 소성응용그룹) ;
  • 권용남 (한국기계연구원 공정연구부 소성응용그룹) ;
  • 이정환 (한국기계연구원 공정연구부 소성응용그룹)
  • 발행 : 2004.02.01
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초록

The improvement of dimensional accuracy for forged part is one of major goals in cold forging industry. There are many problems in controlling the dimension by the trial-and-error, especially for a precision forged gear. A FEM analysis has been used in developing the forging technology. However, FE techniques have to be reconfirmed for predicting accurately the dimension of forged part. In this study, the effects of elastic characteristics and temperature changes are investigated by the comparisons between experimental and FEA in cold forging. When FE models related with elastic characteristics are considered practically, FE results could predict the part dimension within the range of $10\mu\textrm{m}$. And if thermal effects also are considered additionally, the predicted dimensions are well coincided with the experimental down to about $5\mu\textrm{m}$.

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참고문헌

  1. 한국소성가공학회 2003 춘계학술대회논문집 냉간 밀폐 업세팅시 금형과 단조소재의 성형 단계별 치수 변화 이영선;권용남;천세환;이정환
  2. J of Materials Processing Technology v.127 Experimental and analytical evaluation for elastic deformation behaviours of cold forging tool Y.S.Lee;J.H.Lee;T.Ishikawa https://doi.org/10.1016/S0924-0136(02)00268-6
  3. Int. J. Mach. ToolsManufact. v.37 no.2 FE simulation of the influence of die-elasticity on component dimensions in forward extrusion Y.Qin;R.Balendra https://doi.org/10.1016/0890-6955(95)00102-6
  4. Annals of the CIRP v.49 no.1 Prediction of dimensional difference of product from tool in cold backward extrusion T.Ishikawa(etc.) https://doi.org/10.1016/S0007-8506(07)62921-7
  5. J. of Materials Processing Technology v.130-131 Analysis of the elastic characteristics at forging die for cold forged dimensional accuracy Y.S.Lee;J.H.Lee;T.Ishickawa https://doi.org/10.1016/S0924-0136(02)00800-2
  6. Proc. Inst. Mech. Eng. v.205 Analysis of dimensional accuracy of precision forged axisymmetric components M.H.Sadeghi.(etc.) https://doi.org/10.1243/PIME_PROC_1991_205_066_02
  7. Proc. 4th ICTP On the strength criteria for high stressed ring-shaped dies B.Raddad.(etc.)
  8. J of material Processing Technology v.58 Effect of secondary yielding on net-shape forming A.Rosochowski (etc.) https://doi.org/10.1016/0924-0136(95)02083-7
  9. 한국소성가공학회 '99 춘계학술대회 논문집 밀폐 업세팅에서 금형과 제품 변형에 관한 연구 이강희;박용복
  10. J of Material Processing Technology v.115 secondary yielding of forged components due to unloading A.Rosochowski (etc.) https://doi.org/10.1016/S0924-0136(01)00816-0