Transactions of Materials and Heat Treatment

Title：Finite element analysis and experimental study on spinning thickening forming process of multi-wedge pulley

Authors： Tang Jiping Wu Chao Dai Guangxu Hu Chuanpeng Xue Kemin

Unit： Nantong Fuleda Vehicle Accessory Component Co. Ltd. Hefei University of Technology

KeyWords： multi-wedge pulley thickening forming material folding FEM simulation mold optimization

ClassificationCode：TG386

year,vol(issue):pagenumber：2018,43(8):97-102

Abstract：

In order to avoid material folding in the inner transition region of upper structure for multi-wedge pulley during the spinning thickening forming process, a three-dimensional finite element model of multi-wedge pulley spinning thickening was established based on Simufact platform, and the plastic flow law of material in the deformation region and the mechanism of folding defects were analyzed by finite element simulation. Then, a design method of rotating wheel structure was put forward, which made the material in the deformation region thicken locally at the upper end and transfer effectively at the lower end. The simulation results show that the method can effectively restrain the material flow, greatly improve the forming quality of outer wall, and eliminate the folding at rounded corners after spinning flattening. According to the optimal combination of process parameters obtained by the simulation, the trial production is conducted without folding crack in the transition region, and the outer wall is thickened to 3.5 mm, and the upper and lower ribs are well formed. Thus, the finite element simulation analysis and mold optimization ideas are feasible.

Funds：

江苏省科技项目(BA2016047)

唐季平（1963-），男，大专，工程师，E-mail：TJP@nantongjianghua.com；通讯作者：薛克敏（1963-），男,博士，教授，博士生导师，E-mail：xuekm@hfut.edu.cn

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