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研究了加工Nimonic C-263合金时,切削参数(切削速度、给进速度、切削深度等)对表面粗糙度的影响。采用正交方法设计实验。评估了切削参数对表面粗糙度的影响,获得最小粗糙度的最优切削条件。采用响应面方法建立了切削参数和表面粗糙度的二次多项式模型。实验结果表明:在所考察的切削参数中,给进速度对表面粗糙度的影响最为显著,其次是切削速度。模型预测结果与实际结果吻合较好,表明所建立的模型能够用来有效地预测加工Nimonic C-263合金时的表面粗糙度。最后,对预测结果用加成定律进行了验证。
The effects of cutting parameters (cutting speed, feed rate, depth of cut, etc.) on the surface roughness were investigated in the machining of Nimonic C-263 alloy. Using orthogonal method to design experiment. The influence of cutting parameters on the surface roughness was evaluated, and the optimal cutting condition with minimum roughness was obtained. The response surface method was used to establish the quadratic polynomial model of cutting parameters and surface roughness. The experimental results show that the influence of feed speed on the surface roughness is the most significant among the cutting parameters examined, followed by the cutting speed. The model prediction results are in good agreement with the actual results, indicating that the model can be used to effectively predict the surface roughness of Nimonic C-263 alloy. Finally, the prediction result is verified by the addition law.