低温微量润滑刀具耐用度试验研究  

Experimental Study on Tool Durability of Cryogenic Minimal Quantity Lubrication

作　　者：覃孟扬 徐兰英 潘小莉 梁传建 QIN Meng-yang;XU Lan-ying;PAN Xiao-li;LIANG Chuan-jian(College of Physics and Telecommunications Engineering,Yulin Normal University,Guangxi Yulin 537000,China;College of Electromechanical Engineering,Guangdong Polytechnic Normal University,Guangdong Guangzhou 510635,China)

机构地区：[1]玉林师范学院物理与电信工程学院,广西玉林537000 [2]广东技术师范大学机电学院,广东广州510635

出　　处：《机械设计与制造》2021年第7期152-154,共3页Machinery Design & Manufacture

基　　金：广东省普通高校省级(基础研究及应用研究)重大项目(面向抗疲劳制造的机器人用精密RV减速器齿轮表面完整性主动控制技术及应用;2017KZDXM053);玉林市师范学院科研基金(镍基高温合金的超低温润滑加工机理及残余应力调控研究;G2019ZK01)。

摘　　要：为了了解低温微量润滑(CMQL)对难加工材料切削的刀具耐用度的影响,分别在不同润滑方式(干切削/浇注润滑/不同温度CMQL)和喷射方式(刀具内/外喷射)条件下,对镍基高温合金GH4169进行粗/精车削试验,然后分析比较不同条件对刀具耐用度的影响。结果显示CMQL刀具耐用度大于浇注润滑,CMQL可以改善镍基高温合金的切削性能;CMQL温度对镍基高温合金切削影响很大,温度越低,刀具耐用度越大;CMQL对刀具耐用度的影响和摩擦面稳定润滑油膜的形成有关;CMQL内喷射油雾的刀具耐用度大于外喷射。In order to understand effect of cryogenic minimal quantity lubrication(CMQL)on tool durability of hard-to-cut ma⁃terials,nickel-based super alloy GH4169 was rough/finish turned under different lubrication modes(dry cutting/casting lubrica⁃tion/different temperature CMQL)and injection modes(tool internal/external injection).Then their tool durability were analyzed and compared.The experimental results show CMQL tool durability is greater than casting lubrication,and CMQL can improve machinability of nickel-based superalloy.CMQL temperature has a great influence on machinability of nickel-based superalloy;the lower the temperature,the greater the tool durability.Influence of CMQL on tool durability is related to formation of stable lu⁃bricant film on friction surface.Tool durability by CMQL internal spray is greater than that by external spray.

关 键 词：微量润滑 低温冷风切削 刀具耐用度 镍基高温合金 难加工材料 绿色制造 

分 类 号：TH16[机械工程—机械制造及自动化] TG501.5[金属学及工艺—金属切削加工及机床]