组合机床与自动化加工技术
組閤機床與自動化加工技術
조합궤상여자동화가공기술
MODULAR MACHINE TOOL & AUTOMATIC MANUFACTURING TECHNIQUE
2015年
5期
24-26
,共3页
刀尖径向总跳动度%微细铣削%刀具悬伸量%主轴转速
刀尖徑嚮總跳動度%微細鐉削%刀具懸伸量%主軸轉速
도첨경향총도동도%미세선삭%도구현신량%주축전속
tool-point radical run-out%micro milling%tool overhang%spindle speed
微细铣削过程中,刀尖径向总跳动度与每齿进给量在同一量级,其影响切削过程切削厚度,从而影响切削过程切削力。文章基于轴向铣微孔实验分析了微细铣削过程中主轴转速和刀具悬伸量对刀尖径向总跳动度的影响规律,采用线性回归最小二乘估计法建立刀尖径向总跳动度预测模型,并对预测模型进行显著性检验和拟合度检验,检验结果表明:预测模型可用于切削参数范围内刀尖径向总跳动量的预测。
微細鐉削過程中,刀尖徑嚮總跳動度與每齒進給量在同一量級,其影響切削過程切削厚度,從而影響切削過程切削力。文章基于軸嚮鐉微孔實驗分析瞭微細鐉削過程中主軸轉速和刀具懸伸量對刀尖徑嚮總跳動度的影響規律,採用線性迴歸最小二乘估計法建立刀尖徑嚮總跳動度預測模型,併對預測模型進行顯著性檢驗和擬閤度檢驗,檢驗結果錶明:預測模型可用于切削參數範圍內刀尖徑嚮總跳動量的預測。
미세선삭과정중,도첨경향총도동도여매치진급량재동일량급,기영향절삭과정절삭후도,종이영향절삭과정절삭력。문장기우축향선미공실험분석료미세선삭과정중주축전속화도구현신량대도첨경향총도동도적영향규률,채용선성회귀최소이승고계법건립도첨경향총도동도예측모형,병대예측모형진행현저성검험화의합도검험,검험결과표명:예측모형가용우절삭삼수범위내도첨경향총도동량적예측。
In micro milling process, the tool-point radical run-out is comparable with the feed per tooth and will affect the chip thickness, ultimately impact the cutting forces. In this paper, micro drilling hole tests are carried out to analyze the influence principle of the spindle speed and the tool overhang on the tool-point rad-ical run-out;and based on the test results, the tool point radical run-out prediction model is built by using linear regression least square estimation method. In addition, the significance test and fitting degree test are conducted on the prediction model, which show that the prediction model is efficient for predicting the tool-point radical run-out in the range of test cutting parameters.