small-deep hole

Because of the cantilever processing, especially the small hole, deep hole and hard workpiece processing, the rigidity of the tool system is particularly important.

因为是悬臂加工，特别是小孔、深孔及硬质工件的加工时，工具系统的刚性尤为重要。

The result shows that ultrasonic vibration drilling could improve the working accuracy and efficiency, and could solve the problems exited in the drilling process of small deep hole.

结果显示，该工艺方法能大幅提高小深孔的加工精度和效率，很好地解决了小深孔加工中存在的难题。

Based on summarizing machining technology of deep and small hole, an introduction about most advanced technology and internal research is given.

对分析总结了国内外小直径深孔加工技术，介绍了当前孔加工的最新技术和国内在这方面的研究情况。