进给电流对FeCuCo基结合剂金刚石绳锯性能影响  

Influence of feed current on the performance of FeCuCo based diamond wire saw

作　　者：刘志环 于盛睿 廖才超 娄晶 陈浚阳 翟振鑫 LIU Zhihuan;YU Shengrui;LIAO Caichao;LOU Jing;CHEN Junyang;ZHAI Zhenxin(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic University,Jingdezhen 333403,China;Jiangxi Zhongli Superhard Material Tools Co.,Ltd.,Shangrao 333100,China)

机构地区：[1]景德镇陶瓷大学机械电子工程学院,江西景德镇333403 [2]江西众利超硬材料工具有限公司,江西上饶333100

出　　处：《超硬材料工程》2023年第2期1-7,共7页Superhard Material Engineering

基　　金：江西省教育厅科技项目(GJJ201327);江西省重点研发计划(20192BBE50032);国家自然科学基金(52065029,51741505);江西省自然科学基金(20212ACB204013,20202BABL204038);江西省教育厅科技项目(GJJ211323);景德镇科技局项目(20212GYZD009-08)。

摘　　要：采用FeCuCo基结合剂为原料和优化的制作工艺,以金刚石参数设计理论为依据,根据被切割石材的基本特征,制作出金刚石绳锯并进行石材矿山切割实验,研究绳锯进给电流I对FeCuCo基结合剂金刚石绳锯锯切性能的影响规律。结果表明:在不同进给电流时,随着锯切的进行和串珠直径的逐渐消耗,绳锯锯切效率逐渐提高,而工具理论寿命逐渐降低;随着进给电流的增加,绳锯串珠表面单颗金刚石平均切削厚度h c值呈逐渐增加的趋势,表面完整态金刚石出刃高度平均值也呈逐渐增加的趋势,且进给电流越大,串珠表面金刚石出刃高度越大;随着进给电流的提高,岩屑D50粒度也呈现逐渐增大的趋势,且明显远大于单颗金刚石平均切削厚度h c值,这是由于金刚石颗粒的切削机理属于有裂纹扩展的“体积破碎”方式产生的。FeCuCo based matrix and the optimized fabrication process are used,based on the theory of diamond parameter design,according to the basic characteristics of the stone being cut,a diamond wire saw is manufactured for stone cutting experiment in the mine.The effect of wire saw feed current I on the cutting performance of FeCuCo based diamond wire saw is studied.The study result shows that at different feed current,as the sawing progressed and the bead diameter is gradually consumed,the sawing efficiency of wire saw gradually increases,and the theoretical life of the tool gradually decreases.With the increase of feed current,h c value of average cutting thickness of single diamond on the surface of wire saw bead shows a gradually increasing trend.The average value of diamond out blade height on the surface of wire saw bead intact also shows a gradually increasing trend,and the higher the feed current,the greater the diamond out blade height on the surface of wire saw bead.The rock chip D50 grain size shows a gradually increasing trend with the increasing feed current,and is obviously much larger than the single diamond average cutting thickness h c value,which results from the fact that the cutting mechanism of diamond particles belongs to the“volume crushing”way with crack propagation.

关 键 词：FeCuCo 金刚石绳锯 进给电流 切削厚度 出刃高度 

分 类 号：TQ164[化学工程—高温制品工业]