湖南大学学报(自然科学版)Issue(10):48-53,6.
微量润滑对切削加工残余应力的影响∗
Influence of Minimal Quantity Lubrication on Machined Residual Stress
摘要
Abstract
Minimal quantity lubrication (MQL)is a green manufacturing technology.Based on thermal coupling theory on machined residual stress formation,there was a turning experiment to understand how MQL affected turning residual stresses,and the experiment materials were 45 steel,40Cr steels(harden-ing),40Cr steels(annealing)and 304 stainless steel.In the experiment,the residual stresses,the cutting force and the cutting temperature were obtained in dry cutting,air cooling cutting,wet cutting and MQL. Then,the reasons were analyzed for the different distribution of the residual stress in all lubrication meth-ods,and laws and mechanism were obtained about how MQL affected residual stress.The experiment re-sults have shown that MQL helps to reduce residual tensile stress,MQL has obvious impact on high toughness and strength material,its impact on materials difficult to cut is greater than ordinary carbon steel,and the inhibition of thermal effects by MQL is the main mechanism which affects residual stress.关键词
微量润滑/绿色加工/加工残余应力/加工质量/切削机理Key words
minimal quantity lubrication(MQL)/green machining/machined residual stress/machining quality/cutting mechanism分类
矿业与冶金引用本文复制引用
贺爱东,叶邦彦,覃孟扬,徐兰英,梁立东..微量润滑对切削加工残余应力的影响∗[J].湖南大学学报(自然科学版),2015,(10):48-53,6.基金项目
国家自然科学基金资助项目(51375101),National Natural Science Foundation of China(51375101) (51375101)
广东省自然科学基金资助项目(S2013010011882) (S2013010011882)