Investigation on upsetting assisted by low-frequency vibration
State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074 Wuhan, Hubei, China
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The application of vibration load in metal forming processes has been demonstrated to be effective in reducing the forming load. In this paper, upsetting processes assisted by low-frequency vibration at room temperature was investigated based on finite element simulations. The vibration load was applied by the reciprocating movement of the upsetting punch. The influence of vibration frequency and feeding rate were analysed. It was revealed that low-frequency vibration was effective to reduce the mean forming load and increase the friction between billets and tools.
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