Finite element simulation study on the process of tungsten-copper powder rolling
CUI Liqun1, HAN Shengli1, SHI Qi1, LI Daren2, HU Jianzhao3, LIU Zuyan3
1. Guangdong Institute of Materials and Processing, National Engineering Research Center of Powder Metallurgy of Titanium & Rare metals, Guangzhou 510650, China; 2. School of Mechanical and Electrical Engineering (School of Standardization), Guangdong Polytechnic Institute, Guangzhou, 510091, China; 3. School of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Abstract：The Drucker-Prager/Cap model was used to describe the rolling deformation of tungsten-copper powders,and the corresponding finite element model was established. The effects of processing paramenters, including roll gap, rolling speed and rolling temperature on the relative density of sheets were studied using the finite element analysis software (Abaqus). The simulation results were compared with the experimental ones. The results show that in the process of tungsten-copper alloy powder rolling, the larger the gap between rolls, the smaller the relative density of the rolled sheet and the more uniform the density distribution. With increasing rolling speed, the relative density of the sheet decreases, the low density area of the edge decreases, and the uniformity of the density distribution increases. The higher the rolling temperature is, the higher the relative density of the sheet is and the better the powder fluidity is. Comparing the simulation results with the experimental results, the maximum error is 4.1%, which indicates the reliability of the finite element model.
崔利群, 韩胜利, 施麒, 李达人, 胡建召, 刘祖岩. 钨铜粉末轧制的有限元模拟研究[J]. 粉末冶金材料科学与工程, 2019, 24(5): 406-412.
CUI Liqun, HAN Shengli, SHI Qi, LI Daren, HU Jianzhao, LIU Zuyan. Finite element simulation study on the process of tungsten-copper powder rolling. Materials Science and Engineering of Powder Metallurgy, 2019, 24(5): 406-412.
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2019, Vol. 24 
