炮钢铣削力正交试验与数值仿真

摘要

Gun steel is an important weapons material. This paper studied the relationship between law cutting conditions and milling force, in order to improve the machining accuracy and surface quality of gun steel. The influence law of several factors on the milling force were discussed by orthogonal experiment method, and the simulation model of milling force are established.The milling force empirical formula is concluded, the formula contains cutting depth, cutting speed and every tooth feed. The cutting force is measured using a three-to-force measuring instrument 9257B at the machining center. The same milling force distribution data is given, using the method of numerical calculation.The results showed milling force simulation model is accurate and experimental data are credible. This research method has certain reference value to the research of metal cutting theory, material processing technology and the optimization of the cutting process.%炮钢是一种重要的兵器材料，为提高炮钢的加工精度及表面质量，对切削条件与铣削力的影响规律进行研究。采用正交试验法探讨了各种因素对铣削力的影响规律，建立了铣削力仿真模型，得出了炮钢切削深度、切削速度及每齿进给量等3个切削参数的铣削力经验公式，在加工中心上利用9257B型三向测力仪测量切削力信号，并用数值计算的方法给出相同的铣削力分布数值。结果表明：该铣削力仿真模型准确，试验数据可信。该研究方法可为金属切削理论、材料的切削加工工艺性能和优化切削工艺性能等研究提供一定的参考。