摘要
采用直径φ1的硬质合金铣刀对CuZn30合金进行单因素槽铣试验,研究加工表面完整性、顶毛刺和切屑随铣削参数的变化规律。通过试验得到以下结论:切削参数对加工表面完整性影响比较显著,其中表面粗糙度随主轴转速的增大而减小,随每齿进给量增大而增大,切削深度对粗糙度影响不太显著。残余应力随着每齿进给量的增大有明显增大趋势,而主轴转速与切削深度对残余应力的影响不太显著。显微硬度随铣削参数变化没有显著的变化。顶毛刺主要受每齿进给量的影响,毛刺尺寸随着每齿进给量的增加先急速减小后趋于平稳,切屑形态主要受切削深度的影响,随着切削深度的增加,切屑由短小的碎屑逐渐变为平滑的连续卷曲切屑。
A single-factor test of slot milling was performed on a CuZn30 alloy by using a carbide milling cutter with a diameter of φ1 to study the variation of machining surface integrity,top burrs,and chips with milling parameters.The following conclusions are obtained through experiments:the cutting parameters have a significant effect on the integrity of the machined surface.The surface roughness decreases with the increase of the spindle speed,and increases with the increase of the feed per tooth.The cutting depth does not significantly affect the roughness.Residual stress tends to increase significantly with the increase of the feed per tooth,while the effect of spindle speed and cutting depth on residual stress is not significant.Microhardness did not change significantly with changes in milling parameters.The top burr is mainly affected by the feed amount of each tooth.With the increase of the feed amount of each tooth,the burr size decreases rapidly and then stabilizes.The chip shape is mainly affected by the cutting depth.Short crumbs gradually become smooth,continuous curled crumbs.
作者
李一全
袁帅帅
许金凯
刘启蒙
侯永刚
翟昌太
LI Yi-quan;YUAN Shuai-shuai;XU Jin-kai;LIU Qi-meng;HOU Yong-gang;ZHAI Chang-tai(Key Laboratory for Cross-Scale Micro and Nano Manufacturing,Changchun University of Science and Technology,Changchun 130022,China)
出处
《组合机床与自动化加工技术》
北大核心
2020年第2期55-59,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
吉林省重点科技研发项目(20180201057GX)
关键词
表面完整性
表面形貌
微铣削
铣削参数
surface integrity
surface morphology
micro milling
cutting parameters
