摘要
分析枪钻受力影响因素,对钻头受力进行简化并分析径向力、挤光转矩对深孔加工质量的影响。根据分析结果选择通过改变枪钻内、外角的方式来调整钻头受力状况。同时,考虑到枪钻外刃刃磨更加方便、对周边刀面影响较小,为降低试验干扰因素、合理选择刀具几何参数,选取枪钻外刃锋角作为单因素变量进行Ti6Al4V钛合金钻削试验,并通过分析试验结果确定外刃锋角变化对钻削质量的影响。综合考虑切削力值、切屑形貌以及加工质量等因素,给出了钻削Ti6Al4V钛合金时关于枪钻外刃锋角选择优化的建议。
In this paper,the force of drill bit is simplified according to the force influence factors of gundrill,and the influence of radial force and burnishing torque on the quality of deep hole machining is analyzed.According to the analysis results,the force condition of the drill bit is adjusted by changing the inner and outer angles of the gundrill.At the same time,considering that the grinding of the outer approach angle is more convenient and less influence on other flanks of the drill.In order to reduce the interference factor of the test and select the geometric parameters of the tool reasonably,the outer approach angle of the gundrill as a single variable to carry out the Ti6Al4V titanium alloy drilling test is chosen.By analyzing the test results,the influence of changing the outer edge on the drilling quality is determined.Finally,considering the factors such as the cutting force,the chip morphology and the processing quality,some suggestions on the optimization of the outer approach angle are given when drilling the Ti6Al4V titanium alloy.
作者
李亮
薛虎
武鹏
杨聪
刘鹏
朱奔驰
Li Liang;Xue Hu;Wu Peng;Yang Cong;Liu Peng;Zhu Benchi(Mechanical UGS College,Yancheng Institute of Technology,Yancheng,Jiangsu 224051,China)
出处
《工具技术》
2019年第4期21-25,共5页
Tool Engineering
基金
国家自然科学基金青年基金(51505409)
江苏省研究生科研与实践创新计划(SJCX18_0884)
江苏省精密与微细制造技术重点实验室开放基金
江苏省高校自然科学基金(15KJB460018)
关键词
枪钻
外刃锋角
TI6AL4V
参数优化
gundrill
outer approach angle
Ti6Al4V
optimization of design parameter
