排屑性能是评价钻头性能的一个重要指标,而钻头的容屑槽结构对其排屑性能影响很大。本文对可转位浅孔钻的容屑槽进行改进,提出了一种带偏心距的容屑槽。通过运用有限元分析及试验对比,证明其在保证刚度的前提下增大了容屑空间,提高了排屑性能。 Chip removal performance is an important index to evaluate drill performance, while chip flute structure of drill bit has a great influence on chip removal performance. In this paper, the chip flute of indexable shallow hole drilling is improved, and a chip flute with eccentricity is proposed. Through the use of finite element analysis and experimental comparison, it is proved that it increases the chip space under the premise of ensuring the rigidity, and improves chip evacuation performance.