摘要
通过单因素试验并结合响应曲面分析法,重点分析超声振动辅助电解磨削Hastelloy X内孔加工中主轴转速、超声振幅及磨头目数对孔内壁表面粗糙度的影响规律。结果表明:在选取的优化工艺参数范围内,超声振幅对超声辅助电解磨削表面粗糙度的影响最大,磨头目数次之,主轴转速最小。通过参数优化,在主轴转速10836 r/min、磨头目数1000、超声振幅3.3μm的条件下,可得到内壁表面粗糙度为Ra0.25μm的小孔,这为进一步优化复合加工参数及改善表面质量提供了依据。
In this research,the influence of spindle speed,ultrasonic amplitude and mesh number of grinding head on the surface roughness of hole inner wall of Hastelloy X in ultrasonic vibration assisted electrochemical grinding is analyzed by single factor test and response surface analysis method.The results showed that the influence of processing parameters on surface roughness was in order of ultrasonic amplitude,grinding head and then spindle speed at the range of optimized parameters.Through optimization of parameters,the results showed that the inner surface with a surface roughness of Ra0.25μm was obtained at a condition of grinding head at 1000,spindle speed at 10836 r/min and ultrasonic amplitude at 3.3μm,which provides a basis for further optimizing the composite processing parameters and improving the surface quality.
作者
霍金星
尹瀛月
马玉财
张建华
刘勇
HUO Jinxing;YIN Yingyue;MA Yucai;ZHANG Jianhua;LIU Yong(Key Laboratory of High-efficiency and Clean Mechanical Manufacture,Ministry of Education,School of Mechanical Engineering,Shandong University,Ji′nan 250061,China;National Demonstration Center for Experimental Mechanical Engineering Education,School of Mechanical Engineering,Shandong University,Ji′nan 250061,China;Joint Engineering Technology Research Center of Mechanics and Electromechanical Equipment,Shandong University(Weihai),Weihai 264209,China)
出处
《电加工与模具》
2021年第4期61-66,共6页
Electromachining & Mould
基金
国家重点研发计划资助项目(2018YFB1105900)。
关键词
超声振动
激光选区熔化
电解磨削
表面粗糙度
ultrasonic vibration
selective laser melting
electrolytic grinding
surface roughness
