摘要
铝基复合材料被广泛用于航空航天领域薄壁零件的制造,该类零件具有厚度小、刚性差等特点,在机械切削加工过程中易发生变形和颤振。电解加工具有无切削力和加工变形的优点,适用于加工薄壁零件。针对薄壁零件的电解铣削加工,设计并制作了一种大直径的工具阴极,研究了电压和进给速度对其加工效率和加工深度的影响。试验结果表明:增加加工电压能够提升材料去除率和加工深度,提升率逐渐降低;降低进给速度能够获得更大的加工深度。在40 V加工电压的参数下,单次进给的最大材料去除率达到了279.85 mm^3/min,加工浅槽的最大深度达到了1.392 mm。
Aluminum matrix composites are widely used in the manufacture of thin-wall parts for aerospace application.The parts of this kind are of characteristics of small thickness and poor rigidity,causing deformation and vibration.With the advantages of no cutting force and no deformation,electrochemical milling is applicable to precessing the thin-wall parts.In this paper,a tool with large diameter is proposed for high efficient milling of aluminum matrix composites.The effect of voltage and feed rate on machining efficiency is studied.The results of experiment prove that the material removal rate can reach 279.85 mm^3/min in a single feed under voltage of 40 V,and the depth of machined slot 1.392 mm.
作者
王系众
李寒松
李洁
马鑫
WANG Xizhong;LI Hansong;LI Jie;MA Xin(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2021年第1期6-9,13,共5页
Machine Building & Automation
基金
国家自然科学基金面上项目(51875286)
江苏省研究生科研创新计划项目(KYCX18_0263)
江苏省研究生实践创新计划项目(SJCX19_0012)。
关键词
电解铣削
铝基复合材料
材料去除率
electrichemical milling
aluminum matrix composites
material removal rate
