不锈钢微量润滑车削残余应力的研究.pdfVIP

2015年12月 机床与液压 Dec. 2015 第 43 卷第 23 期 M ACHINETOOL 1 HYDRAULICS Vol . 43 No. 23 D O I : 10.3969/j . issn. 1001-3881. 2015. 23. 018 不锈钢微量润滑车削残余应力的研究 覃孟扬\贺爱东 2! 叶邦彦2! 梁立东2! 周莉1 (1.广东技术师范学院机电学院，广东广州510665$ 2 . 华南理工大学机械与汽车工程学院，广东广州510640) 摘要：为了了解不锈钢微量润滑切削的加工残余应力规律，以切削深度、切削速度、进给量和切削液为影响因素，以 加工残余应力为结果，进行不锈钢车削的四因素三水平正交实验。结果表明：加工残余应力一般为拉应力；对残余应力的 影响从大到小依次为：切削速度、切削液类型、切削深度和进给量，其中前二者影响较大；残余应力随着切削速度增加而 增大；单一因素对加工残余应力影响不显著，多因素联合调节时，则有一个较大的影响效果。 关键词！微量润滑；不锈钢；加工表面质量；加工残余应力 中图分类号：TG501. 1 文献标志码 ：A 文章编号：1001-3881 (2015) 23-069-3 Research on Residual Stresses by MQL Turning of Sttiinless Steel QIN Mengyang 1，H EA id o n g 2，Y EB angyan 2，L IA N G L id o n g 2，ZHOU L i 1 (1. College of Electromechanical Engineering ， Guangdong Polytechnic Normal U niversity ， Guangzhou Guangdong 510665, C hina ; 2. School of Mechanical and Automotive Engineering ， South China University of Technology ， Guangzhou Guangdong 510640，C hina ) Abstract ： In order to understand influencing laws of residual stress by MQL turning of stainless steel ，there was a orthiogonal ex­ periment of four factors and three levels. Cutting speed， cutting depth ， feed rate and cutting fluids were influencing factors ， and ma­ chined residual stress was experimental result. The result shows that machined residual stress is generally of stainless steel. Cutting speed， cutting fluid type ， cutting depth of feed rate impact on residual stress in descending order ， of which the first two has a greater impact，and machined residual stress increases with cutting speed increase. Affecting in residual stress by single factor is not significant ，but there is a greater impact effect by multi-factor r〇