摘要
采用超声—放电复合加工技术对Al2O3/(W,Ti)C、Al2O3/TiB2、Al2O3/TiB2/SiCw三种Al2O3 基陶瓷刀具材料表面定位方孔进行加工 ,研究了其加工机理和加工参数对不同陶瓷材料加工效率、加工表面粗糙度的影响。由于该复合加工技术有效地结合了超声波加工和放电加工的特点 ,因而能高效、高质量地加工陶瓷材料。试验结果表明 :在同样的加工条件下 ,材料去除率的大小顺序为 :Al2O3/(W,Ti)C>Al2O3/TiB2>Al2O3/TiB2/SiCw;Al2O3/(W,Ti)C和Al2O3/TiB2 陶瓷材料的电阻率小 ,以放电加工为主 ,材料去除率随开路电压的升高而增加 ,加工表面粗糙度大 ;Al2O3/TiB2/SiCw陶瓷材料的电阻率很大 ,以超声加工为主 ,开路电压对材料的去除率影响不大 。
In this paper, combined machining of ultrasomic vibration machining (USM) and electrical discharge machining(EDM) was used to machine conductive alumina based ceramic materials, ie. Al 2O 3/(W,Ti)C,Al 2O 3/TiB 2 and Al 2O 3/TiB 2/SiCw ceramic tool materials .Results showed that this combined machining technique can be applied to machine this materials with high efficiency and surface integrity . The principle of this combined machining processes ,which combines the advantages of ultrasonic machining and electrical discharge machining, is described . The effect of machining parameters on the machining efficiency and the surface roughness is also discussed.
出处
《江苏陶瓷》
CAS
1998年第2期1-4,14,共5页
Jiangsu Ceramics
关键词
陶瓷材料
氧化铝
超声波加工
放电加工
刀具材料
Ceramic composite Al_2O_3 Ultrasonic vibration machining Electrical discharge machining
