论文部分内容阅读
基于剪切角的最小能量解，对正交切削时的切削力进行了理论预报。计算过程由计算机完成。验证试验的结果表明，理论计算值与实测数据有一个系统差值。这个系统差值即刀具刃口及后刀面上的作用力，其数值范围与先前的实际测定结果取得了定性上的一致。将系统差值修正后，切削力的计算误差小于３％．最后讨论了研究金属切削过程考虑温度与应变率对被加工材料流动应力特性影响的必要性。
Based on the minimum energy solution of shear angle, the cutting force in orthogonal cutting is predicted theoretically. The calculation is done by the computer. The result of the verification test shows that there is a systematic difference between the theoretical calculation and the measured data. The difference of this system, that is, the force on the cutting edge and the flank, is qualitatively consistent with the previous actual measurement results. After correcting the system difference, the calculation error of cutting force is less than 3%. Finally, the necessity of studying the effect of temperature and strain rate on the flow stress characteristics of the material to be processed considering the metal cutting process is discussed.