By using it, the model of equal lead on the cutter can be applied to the cylinder, cone and sphere.
通过该模型，分别建立了柱面上、球面上和锥面上球头立铣刀的等导程螺旋线的数学模型。
The device is posterior cutter grinding to drill in cone surface grinding method that it can vouch for drill with reasonable back Angle, and symmetry precision is high.
本装置采用圆锥表面磨法对钻头进行后面刃磨，可保证磨出的钻头具有合理的后角，对称精度高。
Hose bit can be divided into cutter teeth and cone teeth, cone teeth for weathering of soft rock strata, and permafrost, cutter teeth used for drilling hard bedrock.
筒式钻头的切削具可分为截齿和牙轮，截齿筒状钻头用于风化软岩及永冻土地层钻进，牙轮筒式钻头用于硬质基岩钻进。
It is a new technical innovation which the basic movement principles of the cone bit combine with the super wear-resistant diamond cutter.
它是将牙轮钻头切削齿交替工作的基本运动原理与金刚石钻头的超强耐磨切削齿技术相结合的一项技术创新。
It is a new technical innovation which the basic movement principles of the cone bit combine with the super wear-resistant diamond cutter.
它是将牙轮钻头切削齿交替工作的基本运动原理与金刚石钻头的超强耐磨切削齿技术相结合的一项技术创新。
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