机械科学与技术2017，Vol.36Issue(8)：1292-1297,6.DOI:10.13433/j.cnki.1003-8728.2017.0824
磁力研磨调质45钢的工艺参数和表面形貌研究
Study on Processing Parameters and Surface Morphology of Quenched and Tempered 45 Steel in Magnetic Abrasive Finishing
摘要
Abstract
In this paper,the processing ability and optimal processing parameters of quenched and tempered 45 steel in magnetic abrasive finishing (MAF) are studied.In this experiment,magnetic abrasive is mixed by using SiC abrasive and cast steel particles,magnetic pole was made by using Nb2Fe14B permanent magnet,and orthogonal experiment method was used to design four levels of each five factors,the type of the grinding fluid,abrasive mesh size,percentage weight of abrasive,working gap and magnetic field strength in the MAF process were optimized by comparing the change ratio in surface roughness before and after magnetic abrasive finishing.The results show that,the optimal processing parameters in theMAF process of quenched and tempered 45 steel were of:oleic acid as grinding fluid,360# SiC abrasive,30％ abrasive weight percentage,1 mm working gag and 0.359～ 0.133 T Magnetic field intensity (permanent magnet of (O)30 mm×20 mm);the surface roughness of the workpiece decreased from 1.941 μm before MAF to 1.053 μm after MAF;the surface texture of workpiece after MAF was eliminated.关键词
磁力研磨/正交试验/工艺参数/表面形貌/加工纹理Key words
magnetic abrasive finishing/orthogonal experiment/processing parameters/surface morphology/surface texture分类
矿业与冶金引用本文复制引用
叶恒宇,覃寿同,王栋,张焕可..磁力研磨调质45钢的工艺参数和表面形貌研究[J].机械科学与技术,2017,36(8):1292-1297,6.基金项目
2014年国家工业和信息化部工业转型升级强基工程项目资助 （）
