【作者】 毕果； 孙郅佶； 张剑锋； 王振忠； 安晨辉；

【Author】 BI Guo;SUN Zhi-ji;ZHANG Jian-feng;WANG Zhen-zhong;AN Chen-hui;College of Mechanical and Electrical Engineering,Xiamen University;Chengdu Fine Optic Engineering Research Center;

【机构】 厦门大学物理与机电工程学院； 成都精密光学工程研究中心；

【摘要】 为了优化超精密飞刀切削加工表面的粗糙度,对超精密飞刀切削加工主要参数的变化进行了实验研究。根据超精密飞刀切削加工机床加工原理,分析了影响加工工件表面质量的因素。使用控制变量法对不同的切削参数进行了实验和理论分析的对比,以寻找最优加工参数组合。实验显示:加工后的工件表面粗糙度和表面刀纹对低主轴转速、较高的进给速度比较敏感,而对切削深度较为不敏感;同时转速400r/min,进给速度60μm,切削深度6μm时,加工后的工件表面粗糙度均优于7.5nm,并且基本不存在加工刀纹。实验结果表明,合理选择飞切加工切削参数可以保证加工表面粗糙度及效率。更多还原

【Abstract】 To optimize the surface roughness in ultra-precision fly cutting machining,a number of experiments were conducted to analysis on the changes of main factors affecting the surface roughness.On the basis of the processing principle of ultra-precision fly cutting machine,the main factors affecting surface roughness were analyzed theoretically.To obtain an optimized parameter combination,the experimental results were compared with the theoretical results of different cutting parameters by using the control variable method.Experimental results indicate that the surface roughness and blade ripples are sensitive to low spindle speed and high feed rate,but is not sensitive to cutting depth.Meanwhile,under the cutting conditions in spindle speed of 400r/min,feed rate of 60μm/s,cutting depth within 6μm,the surface roughness is better than 7.5nm,and shows a smooth surface.It concludes that choosing reasonable processing parameters allows to optimize the surface roughness and improve the machining efficiency.更多还原