10B/Al复合材料超精密车削表面成形机理与影响因素分析  

Analysis on Surface Formation Mechanism and Influence Factors of B/Al Composite in Ultra-precision Turning

作　　者：汪兴均 王立平 杜丽 冯可 WANG Xing-jun;WANG Li-ping;DU Li;FENG Ke(School of Mechanical and Electrical Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China;Institute of Machinery Manufacturing Technology,China Academy of Engineering Physics,Mianyang Sichuan 621999,China)

机构地区：[1]电子科技大学机械与电气工程学院,成都611731 [2]中国工程物理研究院机械制造工艺研究所,四川绵阳621999

出　　处：《组合机床与自动化加工技术》2020年第9期134-138,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：高档数控机床关键共性技术标准研究资助(2016YFF0202403)。

摘　　要：为了满足精密物理实验纳米量级加工精度的需求,采用天然金刚石刀具对10B/Al复合材料切削加工是必然选择。通过分析10B/Al复合材料特性,研究了材料增强相受力状态与增强相破坏方式的映射关系,并研究了3种不同破坏方式:拔出、压入、断裂的切削表面成形机理。设计了考虑冷却润滑条件、切削深度、转速、进给的四因素三水平正交实验,结合表面成形机理,讨论分析了不同切削条件对切削表面质量的影响规律,结论认为,高转速、小切深、小进给、非油雾润滑更易获得好的表面质量。In order to satisfy the requirements of nano-scale machining precision in precision physics experiments, it is an inevitable choice for 10B/Al composite machining to use natural diamond tools. By analyzing the characteristics of 10B/Al composite, the mapping relationship between the stress state with the failure mode of the reinforcement phase is studied, and cutting surface formation mechanism of three different failure modes is studied, which includes pulling-out, pressing-in and fracture. Combined with the surface formation mechanism, the orthogonal cutting experiments are designed, which cooling and lubrication conditions, cutting depth, rotation speed and feed are considered. Then the influence of different cutting conditions on the cutting surface quality is discussed and analyzed.It is concluded that the situation including high rotation speed, small cutting depth, small feed, and non-oil mist lubrication makes it easier to obtain good surface quality.

关 键 词：10B/Al复合材料 超精密车削 切削表面成形 

分 类 号：TH16[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]