干切削技术在深孔加工中的应用研究

Application of Dry Cutting Technology in Deep Hole Machinig

深孔干钻削是干加工工艺中最难的工艺,但通过改进深孔钻头的几何形状和几何参数可以解决这一问题。简述了气体喷吸钻的工作原理,介绍了气体喷吸钻的组成、材料及结构特点。为确保可靠排屑、减少摩擦,对钻头的结构和几何参数做了适当的改进。详细介绍了几何参数选择时应遵循的原则及具体数值,并与传统的切削液深孔钻削进行了对比,为生产中深孔干钻削参数的优化提供了参考。

Deep hole drilling process is the most difficult process to dry machining, but through improving the geometry and geometric parameters of deep hole drill, the problem can be solved. The paper described the working principle of the gas jet drill, introduced the composition, material and structure characteristics of the gas jet drill. To ensure reliable chip, re duee friction, structural and geometrical parameters of the drill, geometry parameters were improved properly. Details of the geometric parameters selection should follow the principles and specific values, compared with the traditional cutting flu- id in deep holes drilling. It provided reference for the production of deep hole drilling dry cuttin~ parameters optimization.