金属结合剂金刚石多孔砂轮磨削温度的实验研究  

Experimental study on grinding temperature of porous metal bonded diamond grinding wheels

作　　者：王少武[1] 戴秋莲[1] 

机构地区：[1]华侨大学石材加工研究重点实验室,福建泉州362021

出　　处：《金刚石与磨料磨具工程》2008年第1期22-26,30,共6页Diamond & Abrasives Engineering

基　　金：福建省自然科学基金资助项目(E0410020)

摘　　要：制备了不同孔隙率的金属结合剂细粒度和微粉金刚石多孔砂轮并进行了不同材质石材的磨削性能实验。采用热电偶测温法,研究了不同孔隙率、不同磨粒粒度的金属结合剂金刚石多孔砂轮对两种不同工件材料的磨削温度特性。实验结果表明,不同孔隙率、不同磨粒粒度的金属结合剂金刚石砂轮的磨削温度均随着转速及切深的增加而增加;细粒度的金属结合剂金刚石砂轮随着孔隙率的增大,磨削温度降低;而微粉金属结合剂金刚石砂轮则表现出和细粒度金属结合剂金刚石砂轮不同的特性,即孔隙率达到一定值时,随着孔隙率继续增大,磨削温度反而升高;同一孔隙率金属结合剂金刚石砂轮,细粒度金刚石砂轮的磨削温度要低于微粉金刚石砂轮的磨削温度。In this paper,metal-bonded diamond wheels of different sized abrasive grain with different porosity were fabricated.Grinding experiments with these wheels on two kinds of granite were carried out under different grinding conditions.Grinding temperatures were measured with thermocouple.Experimental results revealed that the grinding temperature of metal-bonded diamond wheels of different sized abrasive grain with different porosity increased both with the rotating speed and the depth of cut of grinding wheels.The grinding temperatures of fine grain diamond grinding wheel decreased with the increase of its porosity.However,the relationship between the grinding temperatures of ultra fine grain diamond grinding wheel and its porosity differs from that of fine grain wheel.Its grinding temperature decreased first with the increase of its porosity to a certain amount and then increased with the further increase of its porosity.With the same porosity,the grinding temperature of metal-bonded fine grain diamond grinding wheels was lower than that of ultra fine grain diamond wheel.

关 键 词：孔隙率 金属结合剂 金刚石砂轮 磨削温度 细粒度 微粉 

分 类 号：TQ164[化学工程—高温制品工业]