宇航材料工艺2024，Vol.54Issue(6)：15-23,9.DOI:10.12044/j.issn.1007-2330.2024.06.002
钛合金钻削轴向力预测模型与实验研究
Research on Prediction Model and Experiment of Axial Drilling Force in Drilling Titanium Alloy
摘要
Abstract
Exit damages frequently occur during the drlling of titanium alloy,and the drilling quality is directly influenced by the axial force of drilling.This paper develops an analytical model to predict the axial drilling force of Ti6Al4V titanium alloy and conducts experiments to validate this model.The accuracy of prediction model is verified by experimental data,and the effects of cutting parameters on both the axial force and drilling quality are investigated.The results show that the maximum error between the predicted and experimental value of axial force is 12.8％.The predicted axial force values show good consistency with the experimental results,demonstrating that the model can effectively predict the drilling axial force for titanium alloys.The axial force and hole exit burr height decrease as spindle speed increases at a constant feed rate.The axial force increases with rising feed rate at a constant spindle speed,but the hole exit burr height decreases at first then increases.Except for the impact of drilling temperature at low feed rates,the hole exit burr height has a positive correlation with the axial force.The surface of hole exit is not burned and the burr height is relatively small under a spindle speed of 1000 r/min and a feed rate of 40 mm/min.And the better drilling quality is obtained.关键词
钛合金/轴向力/预测模型/切削参数/出口毛刺Key words
Titanium alloy/Axial force/Prediction model/Cutting parameter/Exit burr分类
机械制造引用本文复制引用
徐建新,王吉远,刘礼平,邓国杰,刘德隆..钛合金钻削轴向力预测模型与实验研究[J].宇航材料工艺,2024,54(6):15-23,9.基金项目
天津市科技计划项目(21JCYBJC00710) （21JCYBJC00710）
