氧化铝颗粒增强铜基复合材料线切割加工研究  

Study on the Wire Cutting Electric Discharging Machining of Cu-based Composite Materials by Reinforced with Particulate Al_2O_3

作　　者：王瑾[1] 

机构地区：[1]陕西理工学院机械工程学院,陕西汉中723003

出　　处：《重庆工学院学报》2006年第8期63-65,共3页Journal of Chongqing Institute of Technology

基　　金：陕西省教育厅科研基金资助项目(03JK140)

摘　　要：采用粉末冶金方法制备了Al2O3/CU复合材料.研究了电参数对复合材料线切割加工速度和表面粗糙度的影响;用扫描电镜分析了复合材料线切割加工表面的SEM形貌.结果表明:选用较大的峰值电流和较短的脉冲宽度,可对复合材料进行较理想的电火花线切割加工;复合材料加工表面是由相互重叠的放电凹坑和凸缘组成,表面粘附有基体金属的球形熔滴和Al2O3颗粒.Composite electrical parameters materials of Al2O3/Cu are fabricated by on the cutting rate and surface roughness means of powder metallurgy, the influence of of the cutting compound material Al2O3/Cu in wire cutting electric discharging machining is studied and the surface features of cutting is analyzed with SEM. The result shows that a desirable result can be obtained in cutting Al2O3/Cu with adopting larger peak currents and shorter pulse width, and there are a lot of overlapping electric discharging pits and edges and pasted Al2O3 on the machining surface.

关 键 词：电火花线切割加工 AL2O3/CU复合材料 表面粗糙度 切割速度 

分 类 号：TG611[金属学及工艺—金属切削加工及机床] TB331[一般工业技术—材料科学与工程]