摘要
为了探究微磨削对单晶DD98表面粗糙度与磨削力的影响,采用磨粒为500#和磨头直径为0.9mm的磨棒对单晶DD98进行微磨削实验。首先,设计三因素四水平正交实验,通过极差分析得到磨削参数在一定范围内对表面粗糙度影响的主次顺序,其中磨削深度影响最大,主轴转速次之,进给速度最小;并获得最优工艺参数水平组合:主轴转速为60000r/min,磨削深度为6μm,进给速度为20μm/s。其次,对单因素实验进行微磨削实验,得到在一定范围内,得到表面粗糙度值和磨削力值都随主轴转速的增大、磨削深度的减小、进给速度的减小而减小,并对这种影响规律进行分析。为单晶DD98的微磨削提供了重要的理论基础。
In order to explore the influence of single crystal DD98’s micro-grinding surface roughness and force,using the micro-grinding tool with 500#grains and 0.9m m diameter to grind single crystal DD 98 as the experiment.Firstly,to design a three-factor and four-level orthogonal experiment,through the range analyzing the surface roughness,getting the primary and secondary influential factor in specific range,the grinding depth is the biggest,followed by the spindle speed,the feed rate is minimal;and the combination of the optimized parameters is n=60000r/m in,ap=6μm,fm=20μm/s.Then,do the micro-scale grinding experiment of single factor,can be found that the grinding surface roughness and grinding force decreases with the spindle speed increase,the grinding depth decrease and the feed rate decrease,and analyzes the influential rule.The study provides an significant theory basis for the single crystal DD98 micro-scale grinding.
作者
孙杨
巩亚东
周云光
蔡明
SUN Yang;GONG Ya-dong;ZHOU Yun-guang;CAI Ming(Shenyang Urban Construction University,Liaoning Shenyang 110167,China;School of Mechanical Engineering and Automation Northeastern University,Liaoning Shenyang 110819,China)
出处
《机械设计与制造》
北大核心
2018年第4期122-124,128,共4页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目-单晶零件微尺度切削磨削工艺理论与关键技术研究(51375082)
关键词
单晶DD98
微磨削
表面粗糙度
磨削力
正交实验
单因素实验
Single Crystal DD98
Micro-Grinding
Surface Roughness
Grinding Force
Orthogonal Experiment
Range Analysis
