振动钻削Al_2O_(3f)+C_f／ZL109复合材料钻头磨损研究  

Tool Wear in Vibration Drilling of Al_2O_(3f)+C_f/ZL109 Composites

作　　者：代汉达[1] 刘耀辉[2] 高印寒[3] 杜军[2] 

机构地区：[1]吉林大学机械科学与工程学院 汽车材料教育部重点实验室 [2]吉林大学汽车材料教育部重点实验室 [3]测试科学实验中心,吉林长春130025

出　　处：《机械工程材料》2005年第10期26-28,共3页Materials For Mechanical Engineering

基　　金：吉林省科技厅资助项目(963543)

摘　　要：用挤压铸造法制备了Al2O3f+Cf／ZL109复合材料,并进行了振动钻削试验;研究了钻头磨损特性和磨损机理,振幅和振动频率对刀具磨损的影响规律。结果表明:钻头磨损主要发生在后刀面,其磨损机理主要是Al2O3纤维对钻头的摩擦磨损;振动钻削时,较佳的振幅和振动频率分别为20μm和60～100 Hz。选择较佳的振幅和振动频率,可以降低刀具磨损25％以上。Al2O3f＋Cf/ZL109 short fiber reinforced composites were fabricated by squeeze casting, and low frequency vibration experiment was performed. The wear characteristic and mechanism, effects of frequency and amplitude on the tool wear were analyzed. The tool wear mainly appeared on the back face because of the Al2O3 fiber. During vibration drilling of Al2O3f＋Cf/ZL109 composites, under the conditions of an appropriate amplitude of 20μm and frequency between 60 Hz and 100 Hz, the tool wear could be decreased by 25%.

关 键 词：短纤维 混杂增强 刀具磨损 振动钻削 

分 类 号：TB331[一般工业技术—材料科学与工程] TH117[机械工程—机械设计及理论]