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采用陶瓷刀具对淬硬轴承钢GCr15进行干切削对比试验,通过Kistler切削力数据采集系统测量不同切削参数下陶瓷刀具所受切削力大小。用极差分析法对试验结果进行分析,结果表明:切削用量各要素中,切削深度ap的不同水平对试验指标Fz的影响最大,是主要因素;其次是进给速度f,而切削速度vc所取的不同水平对试验指标影响不大,是一般因素;试验选取的各因素水平中,使切削力最小的优化组合为vc=125m/min,f=0.08mm/r,ap=0.1mm;综合考虑生产率等因素,可得到较优组合为vc=125m/min,f=0.12mm/r,ap=0.1mm。
The hardened bearing steel GCr15 was compared by dry cutting with ceramic tool, and the cutting force of ceramic tool under different cutting parameters was measured by Kistler cutting force data acquisition system. Analysis of the test results by the range analysis method shows that: the cutting depth ap of the different levels of the different levels of the test index Fz greatest impact, is the main factor; followed by the feed rate f, while the cutting speed vc Taking the different levels has little influence on the test index, it is a general factor. The optimum combination of the cutting forces is vc = 125m / min, f = 0.08mm / r, ap = 0.1mm among all the factors selected in the experiment. Considering productivity and other factors, we can get the optimal combination vc = 125m / min, f = 0.12mm / r, ap = 0.1mm.