介绍了有限元法在深孔钻头扭转计算中的应用。
The application of finite element method in torsion calculating of deep hole drill is introduced.
通过对BTA深孔钻头排屑通道的研究，提出了理想切屑的形态以及断屑的主要措施。
The channel of chip removal is researched, the ideal shape of chip and main measures for chip removal is put forward.
分析了小直径深孔振动钻削对钻头的要求；设计了一种新型内排屑深孔钻头；分析了该钻头的结构和刃磨特点，进行了振动钻削试验。
Based on analyzing the demands of small-diameter deep-hole drill for vibration drilling, a new inner-chip removal drill was designed.
用途： 适于镶制重型凿岩机用的钻头，例如深孔钻进，凿岩车等用的钎头。
Application:it is fitting for serving as drill heads of heavy rock-digging. machines.
介绍了当前国内外钻削加工的方法、钻头材料、制造钻头的新工艺及一些新型的深孔加工钻头。
This paper introduces briefly the present internal and external state of drilling machining methods, drill material, new technology for making drills and some new types of deep hole making drills.
这是适用于深孔的通用型高速钢长钻头。
传统上采用钻孔方法加工小孔径深孔时，存在排屑困难、钻头易折断等缺陷。
When traditionally processing the parts with small deeper hole by the method of drill, there is certain difficulty in excluding bits and the bit is broken easily.
传统上采用钻孔方法加工小孔径深孔时，存在排屑困难、钻头易折断等缺陷。
When traditionally processing the parts with small deeper hole by the method of drill, there is certain difficulty in excluding bits and the bit is broken easily.
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