An experimental-numerical methodology was proposed for the parameter identification of constitutive laws, when applied to hot forging. Industrial presses were directly used to generate the reference experiments for identification. The strain and temperature heterogeneity that appears during on-press compression experiments was taken into account by an FE-based inverse method. Specific experiments were designed for the identification of the heat transfer and friction coefficients. A testing tool was designed and instrumented with displacement sensors and a force cell. This was then used on a hydraulic press and a screw press in order to cover a large range of strain rates. The identified parameter set was validated with respect to specialized plastometers, and a semi-industrial validation forging process. A reasonable accuracy was observed, particularly in realistic forging conditions.

当应用于热锻时，提出了一种用于本构定律参数识别的实验数值方法。工业压力机直接用于生成参考实验进行识别。通过基于FE的逆方法考虑了在机上压缩实验期间出现的应变和温度异质性。设计了专门的实验来识别传热和摩擦系数。设计了一种测试工具，并配备了位移传感器和测力计。然后将其用于液压机和螺旋压力机，以覆盖大范围的应变率。相对于专用塑性仪和半工业验证锻造工艺，对所确定的参数集进行了验证。观察到合理的准确性，