钎焊金刚石磨削石材过程中磨粒磨损状态研究  

Study on the wear forms of diamond grits in the grinding of stone with brazed diamonds

作　　者：詹友基[1] 黄辉[2] 徐西鹏[2] 

机构地区：[1]福建工程学院机电工程系,福建福州350014 [2]华侨大学石材加工研究福建省高校重点实验室,福建泉州362021

出　　处：《金刚石与磨料磨具工程》2007年第5期10-13,共4页Diamond & Abrasives Engineering

摘　　要：通过数字视频采集系统跟踪观察钎焊金刚石砂轮磨削过程中磨粒表面形貌变化。研究了钎焊金刚石砂轮在磨削花岗石材料过程中,金刚石磨粒的出刃高度和磨损状态的变化规律。结果表明,钎焊金刚石工具在加工过程中,钎焊金刚石磨粒可分为六种磨损状态:完整晶形、微观破碎、宏观破碎、磨平、折平和脱落。磨粒磨损路径主要是以完整→微观破碎→宏观破碎→脱落的方式进行。金刚石磨粒在磨损过程中,可分为初期磨损、正常磨损和剧烈磨损三个阶段。The changes of morphologies of brazed diamond grit in grinding were observed by using a digital video microscope system. The mean protrusion height of diamond grits and grit wear were studied in grinding granite with a brazed diamond wheel. The experiment results indicate that the worn states of diamond grits in the whole grinding process are： intact, micro-fractured, macro-fractured, fiat, break fiat, pull-out. The primary wearing way of diamond grits are： intact, micro-fractured, macro- fractured and pull-out when grinding granite with the brazed diamond wheel. The worn stages of diamond grits are： initial worn stages, normal worn stages, acutely worn stages.

关 键 词：钎焊 金刚石磨粒 磨损 

分 类 号：TQ164[化学工程—高温制品工业]