The precision of cutting simualtion is determined by constitutive models, friction models, and thermal property models etc. In this study, the cutting simualtion model of pure iron with high precision is established. The power-law based material constitutive model has been developed. The high-temperature hardness tests have been carried out to acquired the item of thermal softening. The SHPB tests have been implemented to fit the items of strain hardening and strain rate strengthening. The friction model between workpiece and cutting tool has been developed by orthogonal cutting tests. The thermal property models including specific heat capacity and thermal conductivity modelshave been developed by laser flash diffusivity apparatus, which have been expressed as the functions of temperature. Orthogonal cutting tests with a wide range of cutting and cutting tool parameters have been designed, which is conducive to collecting the cutting temperature of the specific location of the cutting area. The simulated and experimental results have been compared comprehensively in the items of cutting forces and cutting temperature to verify the precision of the simulation model. It is found that the average errors of cutting force, thrust force, and cutting temperature are 5.07 %, 7.73 %, and 9.15 %, respectively, which fully proved the precision of the simulation model.

切削模拟的精度由本构模型，摩擦模型和热性能模型等确定。本研究建立了高精度的纯铁切削模拟模型。已经开发了基于幂律的材料本构模型。已经进行了高温硬度测试以获取热软化的项目。已经进行了SHPB测试，以适应应变硬化和应变速率增强的项目。通过正交切削试验建立了工件与切削刀具之间的摩擦模型。通过激光闪光扩散仪已经建立了包括比热容和热导率模型在内的热性能模型，这些热力学模型已经表示为温度的函数。设计了具有广泛切削和切削工具参数的正交切削测试，这有利于收集切削区域特定位置的切削温度。在切削力和切削温度方面对仿真结果和实验结果进行了全面比较，以验证仿真模型的准确性。发现切削力，推力和切削温度的平均误差分别为5.07％，7.73％和9.15％，这充分证明了仿真模型的准确性。在切削力和切削温度方面对仿真结果和实验结果进行了全面比较，以验证仿真模型的准确性。发现切削力，推力和切削温度的平均误差分别为5.07％，7.73％和9.15％，这充分证明了仿真模型的准确性。在切削力和切削温度方面对仿真结果和实验结果进行了全面比较，以验证仿真模型的准确性。发现切削力，推力和切削温度的平均误差分别为5.07％，7.73％和9.15％，这充分证明了仿真模型的准确性。