钢轨打磨用复合砂轮磨削温度场的研究  

Research on grinding temperature field of rail grinding with compound wheel

作　　者：闫薪霖 肖博 吴恒恒 肖冰[1] 张益权 YAN Xinlin;XIAO Bo;WU Hengheng;XIAO Bing;ZHANG Yiquan(Mechanical and Electrical College, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《金刚石与磨料磨具工程》2020年第2期11-16,共6页Diamond & Abrasives Engineering

基　　金：江苏省产学研前瞻性联合研究项目(BY2016003-15);江苏省产业技术研究院产业重大原创性技术创新项目(BO2015005)。

摘　　要：为研究钢轨打磨用钎焊金刚石插片复合砂轮磨削时的温度场,用复合砂轮和树脂锆刚玉砂轮在不同压力下磨削65Mn钢工件,并对比其磨削温度。基于试验数据,用有限元法分析复合砂轮磨削钢轨时的温度场。结果表明:随着磨削压力的增大,砂轮产热增大,但复合砂轮磨削产热相对较小。相对于相同条件下用树脂砂轮打磨时,用复合砂轮打磨钢轨时的磨削表面最高温度降低近10%。In order to study the temperature field of the composite grinding wheel with brazed diamond insert for rail grinding,a comparative test was carried out on the grinding temperatures of the composite wheel and a resin zirconia corundum wheel for grinding 65Mn steel workpiece under different pressures.Based on the test data,a finite element analysis on the temperature field of the composite wheel for rail grinding was carried out.The results show that with the increase of grinding pressure,the heat production of both wheels increases,while the heat production of composite wheel is relatively smaller.Compared with that of resin grinding wheel at the same condition,the temperature on the surface ground by composite grinding wheel is reduced by nearly 10%.

关 键 词：钢轨打磨 磨削温度 有限元仿真 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]