单颗金刚石磨粒磨削镍基高温合金GH^(4169)模拟研究  

A Simulation Study of Grinding Nickel-Based High Temperature Alloy GH^(4169)with a Single Diamond Grit

作　　者：陈宏轩 曾鑫 陈帅 周胜 黄文科 CHEN Hongxuan;ZENG Xin;CHEN Shuai;ZHOU Sheng;HUANG Wenke(College of Mechanical Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学机械工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2025年第4期17-25,34,共10页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助项目(11902113);湖南省教育厅科学研究基金资助优秀青年项目(22B0584)。

摘　　要：基于ABAQUS仿真软件建立了GH^(4169)单颗磨粒三维正交磨削的热力耦合模型。研究了磨粒形态、磨削速度和磨削深度在磨削过程中对磨削力以及磨削温度的影响。仿真结果表明:六面体磨粒受到的平均磨削力最小为0.14 N;磨削力与工件磨削后的表面温度均与磨深、磨速呈正相关;磨削过程中工件的最高温度出现在发生剪切变形、摩擦做功的第二剪切区;磨粒的最高温度出现在磨粒前刀面刃口的尖角处,其中六面体磨粒前刀面刃口的平均单元温度最低,为689.9℃。Based on ABAQUS simulation software,a thermal coupling model has thus been established for GH^(4169)single grain three-dimensional orthogonal grinding.An investigation has been made of the effects of grit morphology,grinding speed,and grinding depth on grinding force and temperature during the grinding process.The simulation results show that the minimum average grinding force experienced by hexahedral grits is 0.14 N;the grinding force and the surface temperature of the workpiece after grinding are positively correlated with the grinding depth and speed;the highest temperature of the workpiece during the grinding process occurs in the second shear zone where shear deformation and frictional work occur;the highest temperature of the grit occurs at the sharp corner of the front cutting edge of the abrasive grain,among which the average unit temperature of the hexahedral grit front cutting edge is the lowest,at 689.9℃.

关 键 词：高温合金 热力耦合 有限元模拟 磨削力 磨削温度 

分 类 号：TG580.1[金属学及工艺—金属切削加工及机床]