摘要
目的研究工程陶瓷磨削参数对磨削温度的影响,磨削参数包括金刚石砂轮线速度、磨削深度及工件进给速度。方法以金刚石砂轮平面磨削ZrO_2陶瓷为例,运用ABAQUS建立单颗金刚石磨粒磨削ZrO_2陶瓷的有限元模型,分析磨粒磨削陶瓷过程。同时通过正交实验法设计多组关于金刚石砂轮线速度、磨削深度及工件进给速度的磨削组合参数实验,利用人工热电偶法对磨削温度进行测量,将实验结果与仿真结果进行对比分析。结果砂轮线速度由30 m/s增加到50 m/s,磨削深度由5μm增加到15μm,工件进给速度由1000 mm/min增加到3000 mm/min,磨削温度和磨削热分配比均增加,仿真结果与实验结果基本一致。结论磨削过程中磨削深度和工件进给速度对磨削温度的影响较大,随着金刚石砂轮线速度、磨削深度及工件进给速度的增加,磨削温度和磨削热分配比均增大。
The work aims to study the effects of engineering ceramic grinding parameters such as diamond wheel linear velocity, grinding depth and workpiece feed speed. Take grinding ZrO2 ceramic with diamond grinding wheel as an example, a finite element model was established with ABAQUS for grinding ZrO2 ceramic with single diamond grain to analyze the process of grinding ceramic with grain. Multiple grinding combined parameters experiments in regard to diamond grinding wheel linear velocity, grinding depth and workpiece feed speed were designed in the method of orthogonal experiment. Grinding temperature was measured in the method of artificial thermocouple. The experimental results were compared with simulation results for analysis. As the grinding speed increased from 30 to 50 m/s, the grinding depth increased from 5 to 15 μm and workpiece feed speed increased from 1000 to 5000 mm/min, both grinding temperature and grinding heat distribution ratio increased, and the simulation results were nearly consistent with experimental results. Grinding depth and workpiece feed speed have greater effects on grinding temperature. As the diamond wheel linear velocity, grinding depth and workpiece feed speed increase, both grinding temperature and grinding heat distribution ratio increase.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2017年第12期251-258,共8页
Surface Technology
基金
国家自然科学基金(51675353)
教育部"创新团队发展计划"(IRT_15R45)~~
