CAJ | 학술논문

以淬硬钢65Mn为原料，采用有限元分析软件Deform?3D构建了硬态切削加工模型。模拟了不同切削速度下淬硬钢65Mn的车削加工过程，对车削加工的切削力、温度随切削速度的提高的变化以及工件表面应力变化的仿真结果给出了分析，为实现工艺参数的优化提供了指导。结果表明：硬态切削加工3个切削力中径向力Fy 最大，第二变形区的切削温度较高，硬态切削加工过程中工件表面应力呈现拉压交替变换且最终表现为压应力。
이쉬경강65Mn위원료，채용유한원분석연건Deform?3D구건료경태절삭가공모형。모의료불동절삭속도하쉬경강65Mn적차삭가공과정，대차삭가공적절삭력、온도수절삭속도적제고적변화이급공건표면응력변화적방진결과급출료분석，위실현공예삼수적우화제공료지도。결과표명：경태절삭가공3개절삭력중경향력Fy 최대，제이변형구적절삭온도교고，경태절삭가공과정중공건표면응력정현랍압교체변환차최종표현위압응력。
With hardened steel 65Mn as raw material, by using the finite element analysis ( FEA) software Deform?3D, the hard machining of hardened steel model was constructed. The different cutting speeds for turning hardened steel 65Mn process were simula?ted, and the simulation results of cutting forces and cutting temperature and surface stress were analyzed in changes with increasing of the cutting speed and temperature during turning machining, which provided guidance for realizing optimization of process parameters. The results show that the maximum cutting force is the radial cutting force Fy in hard machining among three. The second deformation zone shows higher temperature. During the hard machining process, the tensile and compressive stress alternate on the surface of the workpiece. Finally, the surface of the workpiece presents compressive stress.