铍材料塑性域微细铣削加工机理及工艺  

Mechanism and Process of Ductile Micro-milling for Beryllium

作　　者：吴优[1] 熊雪峰[1] 贾磊 Wu You;Xiong Xuefeng;Jia Lei(China Academy of Engineering Physics,Institute of Materials,Jiangyou,Sichuan 621907,China)

机构地区：[1]中国工程物理研究院材料研究所

出　　处：《工具技术》2019年第12期74-76,共3页Tool Engineering

摘　　要：通过定量计算求得铍材料实现脆塑转变的临界切削厚度;通过对微细铣削切削力的检测、加工表面的形貌特征表征,探讨影响铍样品微细铣削加工脆塑转变过程的裂纹衍生扩展与微量切屑粘结机理;根据该机理,利用微细铣削加工工艺,在刀具切入侧实现铍样品的塑性加工,并获得了良好的表面质量。The brittle-ductile transition cutting thickness of beryllium is achieved by calculation.The initiaion&propagation of small cracks and micro cutting chips adhesion theory is proposed by micro-cutting force and surface quality test.Under the instruction of this theory,the ductile regime machining of beryllium sample is achieved,whose surface quality is very excellent.

关 键 词：微细铣削 脆塑转变 铍 

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