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电热镦粗是一种先进的塑性成形方法 ,但目前生产中仅能靠经验来确定加热电流、镦粗压力、速度等工艺参数。本文分析了电热镦粗的工艺过程以及各工艺参数的作用 ,根据塑性力学、热力学原理和热电效应 ,推导了各参数的理论计算方法 ,从而为电镦工艺的最优控制提供了依据
Electric upsetting is an advanced plastic forming method, but the current production can only rely on experience to determine the heating current, upset pressure, speed and other process parameters. In this paper, the process of electric upsetting and the function of each process parameter are analyzed. According to the principles of plasticity, thermodynamics and thermoelectricity, the theoretical calculation method of each parameter is derived, which provides the basis for the optimal control of electric upsetting process