A new deep drawing process of sheet metals is developed to facilitate small-lot production of deep cups with large drawing ratio. In this process, unlike the conventional deep drawing method, a few drawn cups are always stacked on the punch and used as a part of punch for the subsequent deep drawing of a given blank. Before drawing a new blank, a drawn cup which is in contact with the punch is stripped off. The repetition of such stripping and drawing operations makes it possible to carry out both the first-stage drawing and the subsequent slight redrawings in one drawing operation using only one pair of punch and die. In this paper, this new deep drawing process is applied to the production of tapered cups and the main feature of the process is shown.
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May 1993
This article was originally published in
Journal of Engineering for Industry
Research Papers
Production of Tapered Cups by Sequential Deep Drawing of Sheet Metals Using Drawn Cups as a Part of Punch
K. Yamaguchi,
K. Yamaguchi
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
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K. Kanayama,
K. Kanayama
Government Industrial Research Institute of Nagoya, Hirate-machi, Kita-ku, Nagoya 462, Japan
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M. H. Parsa,
M. H. Parsa
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
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N. Takakura
N. Takakura
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
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K. Yamaguchi
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
K. Kanayama
Government Industrial Research Institute of Nagoya, Hirate-machi, Kita-ku, Nagoya 462, Japan
M. H. Parsa
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
N. Takakura
Department of Mechanical and System Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606, Japan
J. Eng. Ind. May 1993, 115(2): 224-229
Published Online: May 1, 1993
Article history
Received:
September 1, 1990
Revised:
August 1, 1992
Online:
April 8, 2008
Citation
Yamaguchi, K., Kanayama, K., Parsa, M. H., and Takakura, N. (May 1, 1993). "Production of Tapered Cups by Sequential Deep Drawing of Sheet Metals Using Drawn Cups as a Part of Punch." ASME. J. Eng. Ind. May 1993; 115(2): 224–229. https://doi.org/10.1115/1.2901653
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