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Abstract：
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During the cause of die forging, the temperature has a great effect on the mechanics performance of the forging die metal, which is not only reflected by the die material strength, hardness and toughness, etc. but also by the elastic module, expansion coefficient and the heat conduct coefficient. In this paper, the finite element analysis method is used to study the stress field and its change rule in the forging process based on the analysis that the elastic module is changed with the temperature. And we have found the relationship between the combined stress of forging die and elastic module of its material. The result of concluded analysis shows that it shouldn't be strict too much to its mechanical performance in normal temperature when we choose the material of forging die. The material of smaller elastic module that is sensitive to the temperature should be selected aiming at reducing the forging die temperature stress.
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Reference：
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