宇航材料工艺2023，Vol.53Issue(6)：40-47,8.DOI:10.12044/j.issn.1007-2330.2023.06.006
SiCp/Al二维超声复合电解/放电加工的表面生成机理及试验研究
Surface Generation Mechanism and Experimental Study of SiCp/Al on Two-dimensional Ultrasonic Vibration Composited Electrochemical/Electrical Discharge Machining
摘要
Abstract
According to the requirements of high quality machining of composite materials and the advantages of various machining technologies,the two-dimensional ultrasonic vibration composited electrochemical/electrical discharge machining(2UECM/EDM)is proposed in this paper,and surface formation mechanism is deeply studied.Benefiting from the widening of the grooves of the machined surface by the single abrasive particle motion and the levelling effect of electrochemical/electrical discharge machining,the change in the surface topography and surface roughness(Ra)of composite materials were analyzed by the grinding area ratio(δs).Surface formation mechanism of 2UECM/EDM was experimentally compared.The results show that single-cycle feed distance,voltage and two-dimensional ultrasonic amplitude affect the surface quality.Among them,the trend of Ra change is consistent with the feed distance of abrasive particles in a single cycle.The effect of electrochemical/electrical discharge machining is obvious at higher voltage,which leads to the exposure of reinforced particles and increases Ra.The δs increases significantly under axial and tangential vibration,and Ra shows an obvious turning trend near 1.8.Therefore,when greater δs amplitude and lower voltage are selected,the dragging and rolling of the reinforced particles during processing can significantly reduce Ra and greatly improve the surface quality of the workpiece.关键词
二维超声/电解/放电加工/表面粗糙度/表面质量Key words
Two-dimensional ultrasonic/ECM/EDM/Surface roughness/Surface quality分类
矿业与冶金引用本文复制引用
李晶,陈湾湾,朱永伟..SiCp/Al二维超声复合电解/放电加工的表面生成机理及试验研究[J].宇航材料工艺,2023,53(6):40-47,8.基金项目
国家基金资助(52175438,51775484):江苏省研究生集萃研究计划资助 （52175438,51775484）
