纳米粒子射流微量润滑磨削镍基合金润滑性能实验评价  

Experimental Evaluation into Lubricating Property of Nanoparticles Jet MQL Grinding Nickel Base Alloy

作　　者：张彦彬[1] 李长河[1] 贾东洲[1] 张东坤[1] 

机构地区：[1]青岛理工大学机械工程学院,山东青岛266033

出　　处：《组合机床与自动化加工技术》2015年第6期113-117,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金资助项目(51175276);青岛市应用基础研究计划项目(14-2-4-18-jch);黄岛区应用研究科技项目(2014-1-55)

摘　　要：结合国内外对植物油作为微量润滑基础油的研究现状,用液态石蜡作为对比,实验探究了棕榈油作为基础油的润滑性能,实验中添加的纳米粒子是粒径为50nm的Mo S2。实验中以高温镍基合金作为工件在精密平面数控磨床上进行平面磨削,四种磨削工况:干式磨削、浇注式润滑、微量润滑、纳米粒子射流微量润滑。采用三向测力仪测量磨削力用于计算比磨削能和摩擦系数,用粗糙度测量仪测量工件表面的粗糙度值。实验结果表明添加Mo S2纳米粒子的棕榈油基纳米流体在纳米粒子射流微量润滑的条件下取得了最好的润滑性能,这是由于棕榈油中高的饱和脂肪酸含量和羧基高的成膜性能。In consideration of the combined present research situation of vegetable oil as minimum quantity lubrication（ M QL） base oil domestically and abroad,the lubricating property of palm oil as base oil in comparison w ith liquid paraffin w as explored. In the experiment,a numerical control precision surface grinder w as used for plain grinding on a nickel base alloy w orkpiece. The effect of adding M o S2 nanoparticle w ith a particle size of 50 nm w as studied. Four types of grinding w orking conditions w ere applied： dry grinding,flood lubrication,M QL,and nanoparticle jet M QL. Grinding force,particle size,viscosity of nanofluids,and w orkpiece surface roughness w ere measured. The experimental results indicate that palm oil-based nanofluids added w ith M o S2 nanoparticles produce the best lubricating property in the nanoparticle jet M QL condition because of the high saturated fatty acid and high film-forming property of carboxyl groups in palm oil.

关 键 词：纳米粒子 微量润滑 磨削 比磨削能 

分 类 号：TG580[金属学及工艺—金属切削加工及机床]