摘要
本文利用有限元方法计算了某反挤压凸模瞬态温度场，为确定该凸模合理预热温度、计算热应力及结构优化奠定了基础。
By applying finite element method,the transient temperature field of a hotextrusion punch is calculated.The results can be applied to determine preheat temperatureofthe punch, calculate hot一stress and optimize punch size.
关键词
热挤压
模具
温度场
有限元
凸模
hot extrusion,temperature field,finite element method
