The plastic flow and finite element simulation of plastic fine blanking |
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| Authors: | JH Li WF Fan |
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| Affiliation: | 1. Department of Mechanical and Electric Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;2. Department of Electric and Information Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;1. School of Material Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;2. Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan University of Technology, Wuhan 430070, China;1. Institute of Physical Metallurgy and Metal Physics, RWTH Aachen University, 52056 Aachen, Germany;2. Materials Chemistry, RWTH Aachen University, 52056 Aachen, Germany;1. Department of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China;2. Department of Mechanical Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430070, China;3. School of Energy and Power Engineering, North China Electric Power University, Baoding, Hebei 071003, China |
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| Abstract: | An idea of fine blanking is put forward where negative clearance affects plastic shearing and the plastic state of material in the shearing zone is examined under the condition of negative clearance. By analyzing of blanking force and stress, the paper brings forward a method of setting up the three-directions pressed stress. The method determines if the material of deformation field enters the plasticity regime. Some parameters that control when the material of blanked zone enters into the plastic state are given. The analysis indicates that the material stays in the plastic regime, when the specific energy of elastic deformation for common carbon steel Q235 reaches 8.34 MPa. The status of plastic flowing in the shearing zone is simulated. |
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