Transactions of Materials and Heat Treatment

Title：Analysis on friction of fixed rod of thin-walled copper tube in the drawing process with vibration

Authors： Zeng Yanxiang Jiang Zhihong Liu Zhigang Huang Xinjian

Unit： Jiangxi University of Science and Technology

KeyWords： thin-walled copper tube fixed rod vibration drawing numerical simulation average friction drawing speed

ClassificationCode：TG356

year,vol(issue):pagenumber：2016,41(5):117-120

Abstract：

The friction can be reduced in the drawing process due to the surface effect of plastic forming by introducing vibration. The model of drawing with vibration for fixed rod of thin-walled copper tube was established by correcting the new Coulomb friction sliding model based on Marc software, and the influences of drawing speed to the friction in the drawing process were simulated numerically. The simulation results show that the average friction of inner and outer surfaces of thin-walled copper tube can be reduced by introducing longitudinal vibration, and the greater amplitude, the higher frequency, the smaller the average friction of inner and outer surfaces of thin-walled copper tube. When the drawing speed is 0 to 20 mm·s-1, the average friction of inner and outer surfaces of thin-walled copper tube rise significantly with the increase of drawing speed. While the drawing speed exceeds 20 mm·s-1, with the drawing speed increases, and the average friction of inner and outer surfaces of thin-walled copper tube increases slowly.

Funds：

国家自然科学基金资助项目（50665003）

曾艳祥（1990-），男，硕士研究生姜志宏(1977-)，男，硕士，副教授

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