【摘要】 为提高锻件材料铸造工艺，以用于机械绘图的轴对称锻件为研究对象，对其进行热力耦合模拟分析。通过锻件的热力耦合分析，探究不同变形速度、摩擦因子、胚料温度等因素对锻件材料形变的影响。经实验结果表明：压下量相同，变形速度越高，其温差越大，变形速度越低，其温差越小；压下量相同时，摩擦因子几乎不影响锻件的最高温度，但摩擦因子减少，最低温度会大幅下降；胚料温度越高，最大最小等效应力差越小。在进行轴对称锻件生产过程中应选用较低的变形速度和较高的摩擦因子，其胚料也应该设置较低的温度，这有益于其形变。更多还原

【Abstract】 In order to improve the casting technology of forging materials, this paper conducted a thermal-mechanical coupling simulation analysis on the axisymmetric forgings used for mechanical drawing. This analysis focuses on the influence of the factors such as different deformation speed, friction factor, and blank temperature on the deformation of forging materials. Following conclusions can be drawn from experimental results. In the case of the same rolling reduction, the higher the deformation speed, the bigger the temperature difference, the lower the deformation speed, and the smaller the temperature difference. In addition, the friction factor hardly affects the maximum temperature of the forgings in the same rolling reduction, but if the friction factor decreases, the minimum temperature will drop significantly. And the higher the blank temperature, the smaller the maximum and minimum equivalent stress difference. Therefore, in the production process of axisymmetric forgings, a lower deformation speed and a higher friction factor should be selected, and the blank material should also be set at a lower temperature, which is beneficial to its deformation.更多还原