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| Numerical Simulation and Experimental Investigation of Springback in U-Channel Forming of Tailor Rolled Blank |
| ZHANG Hua-wei1,LIU Li-zhong1,HU Ping1,LIU Xiang-hua2 |
1. Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology, Dalian 116024, Liaoning, China
2. Research Institute of Science and Technology,Northeastern University, Shenyang 110819, Liaoning, China |
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Abstract In order to grasp the springback rule of TRB (tailor rolled blank) parts after forming, the springback behavior of TRB was investigated by integrating such three means as theoretical research, numerical simulation and stamping experiments. Fundamental theories of springback were analyzed. The stamping and springback processes of annealed 1.2/2.0 mm TRB, 1.2 mm and 2.0 mm plates for U-channel were simulated, and the simulation results were compared with the experiments. The results indicate that the springback of TRB falls in between those of the 1.2 mm and 2.0 mm plates. It is desirable for the TRB U-channel to have die clearance of 1.1 times maximum blank thickness and friction coefficient of about 0.12, and longer thickness transition zone is preferable. The simulation data demonstrate reasonably good agreement with the experiments.
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Received: 23 September 2011
Published: 26 September 2012
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| Fund:;��973�� National Basic Research Project of China;Fundamental Research Funds for the Central Universities |
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Corresponding Authors:
Hua-Wei ZHANG
E-mail: zhw59595774@gmail.com
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2012, Vol. 19 
