钎焊金刚石线锯的失效模式研究  

Failure Modes of Brazed Diamond Wire Saw

作　　者：张国青[1,2] 黄辉[1] 徐西鹏[1] 

机构地区：[1]华侨大学硬脆材料加工技术教育部工程研究中心,厦门361021 [2]池州学院机械与电子工程系,池州247000

出　　处：《硅酸盐通报》2015年第8期2320-2324,2351,共6页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金青年项目(51005026);安徽省优秀青年人才项目(2011SQRL163)

摘　　要：利用钎焊金刚石线锯在不同切割参数下对单晶硅材料进行切割,观察线锯钎料层和线锯断口形貌,结合对线锯切割受力的理论分析,研究线锯的失效模式及机理。研究结果表明,线锯的失效主要有正常失效和非正常失效,正常失效模式主要是线锯表面裂纹扩展引起的脆性断裂,非正常失效的主要模式是由于切割参数的不恰当而导致线锯的意外拉断和钎料层的脱落。The brazed diamond wire saw was used to cut monocrystalline silicon at different processing parameters. The solder layer and fracture morphology of wire saw were observed. Combined with the theoretical analysis of wire saw force, the failure modes and mechanism were discussed. Experimental results show that the failure of the brazed diamond wire saw can be divided into normal failure and abnormal failure modes. The normal failure means the fatigue fracture of wire saw. While the abnormal failure means the accidental breakage of the wire saw or the falling off of its solder layer because of inappropriate cutting parameters.

关 键 词：钎焊金刚石线锯 失效模式 受力分析 脆性断裂 

分 类 号：TH16[机械工程—机械制造及自动化]