Deep Drawing of Circular Sheet Metals with Rubber Rings : 1st Report, The Case of First Drawing Operation
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概要
- 論文の詳細を見る
For the process of so-called " punchless deep drawing", an optimum drawing condition is investigated under which the height of the drawn cup increases efficiently. Considering the dimensions of the rubber ring, the applied compressive load and lubricants for the contact surface between blank and die, the optimum condition for the first drawing operation is determined experimentally. It is especially emphasized that the internal diameter of the rubber ring d_2 should be chosen such that the ratio of d_2 to the die hole diameter d_1 may increase with a decreasing d_1. It is also extremely important to use a thicker ring so far as no fracture occurs at the coupled with polyethylene film. Furthermore, some examples of fractures and depressions at the bottom portion and also flange wrinkles are shown.
- 一般社団法人日本機械学会の論文
著者
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Yamaguchi Katsuhiko
Department Of Mechanical And System Engineering Kyoto Institute Of Technology
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Takayama Kenichi
Department Of Mechanical Engineering Kyoto Institute Of Technology
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Takayama Kenichi
Department Of Geriatric Medicine The University Of Tokyo
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FUKUDA Masayoshi
Department of Mechanical Engineering, Faculty of Engineering and Design, Kyoto Institute of Technolo
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Yamaguchi Katsuhiko
Department Of Mechanical Engineering Kyoto Institute Of Technology
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Fukuda Masayoshi
Department Of Mechanical Engineering Kyoto Institute Of Technology
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