Numerical Analysis and Optimization of Hole Roundness in Gun Drilling Deep Hole Machining

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Chen, Shuqin^1 ; Li, Yaoming^1 ; Bai, Peikang^2 ; Shen, Hao^1 ; Zhang, Huang^1

School of Mechanical Engineering, North University of China, Taiyuan

030051, China^1

School of Materials Science and Engineering, North University of China, Taiyuan

030051, China^2

关键词: Calculation accuracy;    Characteristic matrices;    Deep holes;    Finite element analysis method;    Machining quality;    Mechanical model;    Optimized structures;    Processing quality;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/4/042051/pdf
DOI  :  10.1088/1757-899X/382/4/042051

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

According to the actual situation of gun drill processing and the fact that the guide pad has effect on improving processing quality, optimized structure with three guide pads is designed. Finite element analysis method and characteristic matrix of mechanical model is used to deduce the formula of the rifling mark when the calculation accuracy is guaranteed. The results of two kinds of gun drill worked in the same situation are compared and analysed by simulation. From the result, gun drill with three guide pads is good at inhibiting the errors and improving the machining quality.