There are two kinds of gun drills, namely, the center-cut gun drill used for drilling blind holes and the trepanning drill.
深孔钻有两种类型，即用于钻盲孔的中心切削深孔钻和套孔钻。
This paper describes the mathematical model derivation of gun drill point with planar flanks, for given sets of design parameters.
本文根据选定的枪钻设计参数，导出平面型后刀面枪钻钻尖的数学模型。
Pansteel Blast Furnace used simply electric taphole drill for a long time, which cannot apply to higher smelting intensity and the new clay gun.
攀钢高炉炉前开铁口设备一直使用简易的电动开铁口机，已不适应高炉高强度冶炼和铁口新型炮泥的要求。
Hollow shaft type high pressure cooling system is used to solve the problem in deep drilling, as well as gun-drill with open groove, proper cutting consumption and single tool withdraw are applied.
笔者主要阐述了数控深孔钻床在使用枪钻进行深孔加工时工艺参数的选择，寻求最佳加工性能，以求达到快速加工、提高效率的目的。
The research of the deep hole processing system which used gun-drill and the forced-air cooling technique;
通过对深孔加工常用方法的分析 ，设计了一种集镗削、滚压于一体的组合镗滚刀具。
The research of the deep hole processing system which used gun-drill and the forced-air cooling technique;
通过对深孔加工常用方法的分析 ，设计了一种集镗削、滚压于一体的组合镗滚刀具。
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