铝基新型结合剂金刚石磨轮的研制  

Manufacture of a new style diamond grinding wheel with Al-based bonding matrix

作　　者：王双喜[1,2] 刘雪敬 耿彪 耿林[1] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,哈尔滨150001 [2]广东科信达科技有限公司,广东佛山528000

出　　处：《粉末冶金技术》2008年第5期344-349,共6页Powder Metallurgy Technology

基　　金：中国博士后科学基金资助(2005038520)

摘　　要：用铝合金制备了新型结合剂金刚石磨轮,研究了烧结温度对结合剂组成分别为Al-Sn-Ti、Al-Sn-Ti-Ni-Co、Al-Sn-Ti-Ni、Al-Sn-Ni-Co的金刚石磨轮的相对密度、硬度和使用寿命的影响,观察并分析了不同结合剂在不同烧结温度下的显微组织,测试了铝基结合剂金刚石磨轮的使用性能并与树脂结合剂金刚石磨轮、铜基结合剂金刚石磨轮进行了对比。结果表明:组成为Al-Sn-Ti-Ni-Co的结合剂性能较好,最佳烧结温度为300℃左右;在300℃下烧结,结合剂组织致密,对金刚石的把持力强;在修整效果达到要求的同时,铝基结合剂金刚石磨轮的使用寿命是树脂结合剂金刚石磨轮使用寿命的2倍以上。A new style diamond grinding wheel with /U-based bonding matrix was prepared in this paper. The influence of sintering temperature on the relative density, hardness and working life of diamond grinding wheels with Al-Sn-Ti,Al-Sn-Ti-Ni-Co、Al-Sn-Ti-Ni,Al-Sn-Ni-Co bonding matrix was studied. The microstructure of different bonding matrix sintered at different temperature was observed. The service performance was compared with Cubased or resin-based grinding wheal. The results show that, A1-Sn-Ti-Ni-Co is the better composition, and the best sintering temperature is 300℃ . The samples were compacted after sintered at 300℃; Al-based bonding matrix is strongly retentive of diamond . The working life of this Al-based new type diamond grinding wheel is about two times as long as that of resin-bonded grinding wheel.

关 键 词：金刚石磨轮 铝 使用寿命 

分 类 号：TG743[金属学及工艺—刀具与模具] TB333[一般工业技术—材料科学与工程]