Finite Element Simulation of Asymmetrical Rolling for Cu-20%Fe Powder and Influence Law of Process Parameters
ZHANG Hongji1,2, PENG Wenfei1,2,*, LI He1,2, SHAO Yiyu1,2, Moliar Oleksandr1,2
1 College of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, China 2 Zhejiang Provincial Key Laboratory of Part Rolling Technology, Ningbo University, Ningbo 315211, Zhejiang, China
Abstract: To investigate the forming law of asymmetrical rolling of copper-iron powder with high iron content, and select reasonable process parameters, the MSC. Marc finite element software was used to create the copper and iron powder rolling finite element model based on the Shima-Oyane yield criterion. The finite element model was verified by experiments. The influence of process parameters such as differential speed ratio, reduction ratio, rolling speed, roller diameter and friction coefficient on the relative density and rolling force of green sheet were analyzed by simulation and rolling experiment. The results show that asymmetric rolling can significantly reduce the rolling force and improve the uniformity of green sheets density distribution compared with powder symmetric rolling. When the reduction ratio and roll diameter are too large, the green sheets suffer edge cracking and roll wrapping relatively, and too low reduction ratio and friction coefficient result in unsmooth forming of the green sheets. The test results agree well with the finite element simulation results. The maximum error of the relative density simulation results is 3.89%, and the maximum error of the rolling force simulation results is 9.49%. The research results have a good reference value for the optimization of asymmetrical rolling forming process of copper-iron powder.
张宏吉, 彭文飞, 李贺, 邵熠羽, Moliar Oleksandr. Cu-20%Fe粉末异步轧制有限元模拟及工艺参数影响规律[J]. 材料导报, 2024, 38(3): 22090131-7.
ZHANG Hongji, PENG Wenfei, LI He, SHAO Yiyu, Moliar Oleksandr. Finite Element Simulation of Asymmetrical Rolling for Cu-20%Fe Powder and Influence Law of Process Parameters. Materials Reports, 2024, 38(3): 22090131-7.
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2024, Vol. 38 
