摘要
采用正交试验法对TC18钛合金进行了车削试验,使用直观分析法、经验模型分析法和极差分析法研究了主轴转速、进给深度和切削深度对切削力和表面粗糙度的影响。结果表明:和进给深度、主轴转速相比,切削深度对切削力的影响最大,随着切削深度的增加切削力不断增大;进给深度对表面粗糙度的影响最大,切削深度的影响次之,主轴转速的影响最小;在切削力和表面粗糙度的指数经验模型中,拟合程度较高的为主切削力(Fz)的参数模型,且显著程度相对较高。
Turning tests were conducted on TC18 titanium alloy by orthogonal testing method.The effects of spindle speed,feed depth and cutting depth on cutting force and surface roughness were studied by intiutive analysis,empirical model analysis and range analysis.The results show that compared with feed depth and spindle speed,the effect of cutting depth on cutting force was the largest.The cutting force increased with the increase of cutting depth.The effect of feed depth on surface roughness was the largest,the effect of cutting depth was the second,and the effect of spindle speed was the least.In the exponential empirical model of cutting force and surface roughness,the model with higher fitting degree was the parameter model of main cutting force(Fz),and the significant degree was relatively high.
引文
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