横刃是麻花钻钻芯上的切削刃
此四面会合于钻尖点,在中央会合处形成两条短刃称为横刃 (Chisel edge), 是最先碰触板材 之处, 此横刃在压力及旋转下即先行定位而钻入stack中, 第一尖面的两外侧各有一突出之
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根据刃磨的运动关系建立了新型微钻头横刃修磨的数学模型并求出了刃磨参数。
Based on the kinematic relationship of regrinding, a mathematical model was established for the chisel edge regrinding and the solution of grinding parameter was obtained.
为了提高新型微钻头的钻削性能，提出了一种适合于微钻头的横刃修磨原理及方法。
To raise drilling performance of new micro-drill, a novel method was advanced for reginding of chisel edge.
针对该钻型的特点，提出用钻尖主刃的外缘和横刃转点处的锋角作为其设计参数值。
Point angles at outer corner and chisel edge corner are proposed to be used as the drill design parameters to determine the type uniquely and the relief Angle is used as a supplement parameter.
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