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Prediction of punch life in notching process for automatic transmission retainer considering fatigue and wear

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Abstract

In notching process, predicting punch replacement period is very important. The retainer made of thick steel plate is one of the important components of the automatic transmission. The transmission retainer is produced through a shearing process, such as a piercing or notching process. In this process, very high stress occurs in the punch because of high strength and thickness of steel plate. Therefore, punch life is very short. In this study, the fatigue and wear life of the punch in notching process is predicted using numerical analysis. An experiment was conducted to verify the effectiveness of the result of numerical analysis for predicting the punch life. From the experiment the fatigue failure of the punch and the wear depth in notching process are measured. From the results the wear and fatigue life predicted through numerical analysis agree well with the experimental results.

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Authors and Affiliations

  1. Ultimate Manufacturing Technology Group, Korea Institute of Industrial Technology, Seoul, 711-883, Korea

    In-Kyu Lee, Myeong-Sik Joeng, Sang-Kon Lee, Sung-Yun Lee, Da Hye Kim, Jae-Wook Lee, Yong-Jae Cho & Chang-Young Choi

  2. School of Mechanical Engineering, Pusan National University, Seoul, 609-735, Korea

    Byung-Min Kim

  3. Precision Manufacturing Systems Division, Pusan National University, Seoul, 609-735, Korea

    In-Kyu Lee

Authors
  1. In-Kyu Lee
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  2. Myeong-Sik Joeng
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  3. Sang-Kon Lee
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  4. Sung-Yun Lee
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  5. Da Hye Kim
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  6. Jae-Wook Lee
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  7. Yong-Jae Cho
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  8. Chang-Young Choi
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  9. Byung-Min Kim
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Corresponding author

Correspondence to Sang-Kon Lee.

Additional information

Recommended by Associate Editor Dae-Cheol Ko

In-Kyu Lee received his B.S. degree (2010) in Department of Mechanical and Automotive Engineering from International University of Korea in 2010, and his M.S. degree (2012) in National Core Research Center for Hybrid Materials Solution from Pusan National University in Korea. He is currently a researcher at the Ultimate Manufacturing Technology Group at Korea Institute of Industrial Technology (KITECH), and Ph.D candidate of Department of Mechanical Engineering at Pusan National University in Korea. His research interests include cold/hot forging, die design technology.

Sang-Kon Lee received his B.S. degree (1998), M.S. degree (1998), and Ph.D. (2008) from Pusan National University in Korea. Dr. Lee is currently a Principal researcher at the Ultimate Manufacturing Technology Group at Korea Institute of Industrial Technology (KITECH) in Korea. His major research field is metal forming technologies including wire and shape drawing, aluminum/ magnesium extrusion, and cold/hot forging process.

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Lee, IK., Joeng, MS., Lee, SK. et al. Prediction of punch life in notching process for automatic transmission retainer considering fatigue and wear. J Mech Sci Technol 29, 5387–5393 (2015). https://doi.org/10.1007/s12206-015-1140-8

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  • DOI: https://doi.org/10.1007/s12206-015-1140-8

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