切削功率模型实验分析与建模  

Experimental analysis and modeling of cutting power model

作　　者：徐世斌[1] 唐任仲[1] 吕景祥 

机构地区：[1]浙江大学机械工程学院,杭州310027 [2]西安导航技术研究所,西安710068

出　　处：《哈尔滨工业大学学报》2015年第10期40-44,共5页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金(51175464);国家高技术研究发展计划(2013BAF02B10)

摘　　要：为得到更加准确的切削功率模型,来提高机床能耗评估、节能优化的能力,以平面铣削加工为例,选择灰铸铁作为工件材料,采用四因素(主轴转速、每齿进给量、铣削深度和铣削宽度)四水平正交实验设计,在一台加工中心开展切削实验,通过功率数据采集装置测量得到切削功率,实验结果和模型精确度评估表明:当W400F-FS的涂层铣刀铣削型号为HT250的灰铸铁时,用单位体积切削能和切削力经验公式计算切削功率的平均相对误差分别为16.06%和32.63%,而用SPSS软件拟合出的模型计算切削功率的平均相对误差为3.7%,从而解决了通过单位体积切削能和切削力经验公式计算切削功率误差较大的问题.Togeta more accuratemodel ofcutting powerand improve the ability of evaluating energy consumption of machine tool and energy optimization,this paper takes face milling for example,chooses gray cast iron as the workpiece material,adopts four factors（ spindle speed,feed rate per tooth,milling depth and milling width） and four levels orthogonal experiment and carries out cutting experiments ina machining center,obtains the cutting power by the power data acquisition device. The experimental results and model accuracy assessment show that when the coating milling cutter of W400F-FS cuts HT250 gray cast iron,specific energy and empirical formula of cutting force calculate cutting power with the average relative error of 16.06% and 32.63%respectively,but the fit cutting power model with the average relative error of 3.7% is achieved by SPSS software. The problem of calculating cutting power through specific energy and empirical formula of cutting forcewith much error is solved.

关 键 词：平面铣削 切削功率 正交实验 加工中心 

分 类 号：TG5[金属学及工艺—金属切削加工及机床]