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Prediction of Shearing Die Life for Producing a Retainer using FE Analysis

유한요소해석을 이용한 리테이너 전단 금형 수명예측

Lee, I.K.;Lee, S.Y.;Lee, S.K.;Jeong, M.S.;Seo, P.K.;Lee, K.H.;Kim, B.M.
이인규;이성윤;이상곤;정명식;서판기;이경훈;김병민

  • Received : 2014.12.18
  • Accepted : 2015.01.05
  • Published : 2015.08.01

Abstract

In the current study, a method was proposed to quantitatively predict the wear and fatigue life of a shearing die in order to determine an effective replacement period for the die. The shearing die model of a retainer manufacturing process was used for the proposed method of quantitative life prediction. The retainer is produced through shearing steps, such as piercing and notching. The shearing die of the retainer is carefully controlled because the dimensional accuracy of the retainer is critical. The fatigue life for the shearing die was predicted using ANSYS considering S-N curves of STD11 and Gerber’s equation. The wear life for the shearing die was predicted using DEFORM-3D considering the Archard’s wear model. Experimental shearing of the retainer was conducted to verify the effectiveness of the proposed method for predicting die life. The fatigue failure of the shearing die was macroscopically measured. The wear depth was measured using a 3D coordinate measuring machine. The results showed that the wear and fatigue life in the FE analysis agree well with the experimental results.

Keywords

Retainer;Fatigue Life;High Cycle Fatigue;S-N Curve;Wear Life;Wear Coefficient;Shearing Die;FE Analysis

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