S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
Prediction of Critical Blank-holding Force Criterion to Prevent Wrinkles in Axi-symmetric Cup Drawing
- Yoon, H.; Alexandrov, S.; Dick, R. E.; Kang, T. J.; Chung, K.
- Issue Date
- Proceedings of ICAM 2005: 2005 International Conference on Advanced Manufacture, Nov 28- Dec 2, Taipei, Taiwan
- The repression of wrinkling during sheet metal forming has been a significant issue in
recent years. In order to provide a reliable and efficient tool to predict the critical blank holding force to prevent wrinkles, an axi-symmetric analytical model for flange wrinkling is introduced here. Using a conventional theory of the critical condition, the critical blank-holding force and wave numbers are numerically predicted. Comparison between the numerical and experimental results shows excellent agreement for various blank dimensions and materials.
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