This invention relates to an improvement on the manufacture of nodular graphite cast drill with cylindrical teeth.
本发明是改进的球墨铸铁柱齿钻头的制造方法。
An efficient cylindrical clipping algorithm is presented to rapidly drill holes in polyhedrons, which are made up of convex polygons.
提出一种高效的对凸多边形组成的多面体进行圆柱面裁剪的算法，并实现了多面体的快速钻孔。
This paper established the mathematical model of SPLIT drill basing on the involute cylindrical surface, and conducted real edge grinding.
本文建立了基于渐开圆柱面的SPLIT钻数学模型，并进行了实际刃磨。
The drill bit body has three wings four cylindrical tungsten carbide inserts and curved slots for removal of cuttings.
在结构上采用了三翼四齿的钻头体、弧槽形排粉沟槽，适用于硬、中硬、软岩的三种齿形。
The drill bit body has three wings four cylindrical tungsten carbide inserts and curved slots for removal of cuttings.
在结构上采用了三翼四齿的钻头体、弧槽形排粉沟槽，适用于硬、中硬、软岩的三种齿形。
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