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综合考虑热冲压工艺过程中板料加热过程的热量损耗特征及冲压成形过程中的板料塑性变形特征,提出了热冲压加热能耗和塑性变形能耗分析方法,建立了热冲压成形过程中的能耗模型。并将该模型应用于ZK60镁合金筒形件热拉深成形过程的能耗分析中,在保证成形质量的前提下,分析量化了镁合金在175~225℃范围的热拉深过程能量消耗,并与实验能耗对比。结果显示不同温度下的ZK60镁合金筒形件热拉深成形理论能耗与实验分析能耗基本吻合,且误差在10%以内。该方法可有效量化不同工艺参数下热冲压工艺过程能量消耗。
Considering the heat loss characteristics of sheet heating during hot stamping process and the plastic deformation characteristics of sheet metal in the process of stamping, an analysis method of energy consumption and plastic deformation energy consumption during hot stamping was put forward. The hot stamping forming process Energy consumption model. The model was applied to the energy analysis of hot drawing process of ZK60 magnesium alloy cylindrical parts. Under the precondition of forming quality, the energy consumption of the hot drawing process of magnesium alloy at 175 ~ 225 ℃ was analyzed and quantified. And compared with the experimental energy consumption. The results show that the theoretical energy consumption of ZK60 magnesium alloy tube under different temperatures is in good agreement with the experimental analysis, and the error is within 10%. The method can effectively quantify the energy consumption of the hot stamping process under different process parameters.