PROBLEM TO BE SOLVED: To provide a thermal deformation analysis method of preventing a cast from behaving harder at normal temperature than it really does, in thermal deformation analysis of the cast.;SOLUTION: A thermal deformation analysis method of calculating strain of a metal material in a cooling process of a cast which is obtained by supplying molten metal of the metal material to a mold, to analyze thermal deformation of the cast, includes: defining the plastic strain εp constituting the strain of the metal material with a visco-plastic strain εV and a static plastic strain εsp; setting at least a high-temperature range where the change in plastic strain has no influence on stress, and a low-temperature range lower than the high-temperature range, on the basis of stress-strain characteristics of the metal material during plastic deformation using temperature and strain speed as parameters; calculating the plastic strain in the high-temperature range from the viscose-plastic strain εV; calculating the plastic strain in the low-temperature range from the static plastic strain εsp; and analyzing thermal deformation of the cast from the high-temperature range to the low-temperature range.;COPYRIGHT: (C)2015,JPO&INPIT
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机译：解决的问题：在铸件的热变形分析中，提供一种防止铸件在常温下比实际温度更坚硬的热变形分析方法。解决方案：一种计算金属材料应变的热变形分析方法在通过将金属材料的熔融金属供应到模具而获得的铸件的冷却过程中，分析铸件的热变形包括：定义构成铸件的应变的塑性应变ε p 。具有粘塑性应变ε V 和静态塑性应变ε sp 的金属材料;根据使用时的金属材料的塑性变形时的应力应变特性，至少设定塑性应变的变化对应力没有影响的高温区域以及比该高温区域低的低温区域。以温度和应变速度为参数;根据粘塑性应变ε V 计算高温范围内的塑性应变;根据静态塑性应变ε sp 计算低温范围内的塑性应变;并分析了铸件从高温到低温的热变形。;版权所有：（C）2015，日本特许会计师事务所
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