bit t cutting angle 钻头切削角
This paper analyses that tip Angle of drill bit influences on cutting capability and life of twist drill, when the material and shape of work piece is different.
分析了工件材料、形状不同时，钻尖顶角的大小对麻花钻切削性能及寿命的影响，介绍了麻花钻的钻尖顶角的选择。
The model includes of important characteristics of drill bit and drilling operation, i. e. sectional geometrical property of drill, spiral Angle, speed and cutting force created during drilling.
该模型包括了钻头以及钻削操作的重要特性，即钻头的截面几何特征、螺旋角、转速和钻削过程中产生的切削力。
A set of calculating formulae for vertical milling teeth of drilling bit cones is derived herein from cutting rows with Angle cutters.
本文从尖角铣刀割圆出发，拟出了一套钻头牙轮直铣齿的计算公式。
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