Tungsten Carbide Twist Drill’s Main Geometric Parameters Selection

Tungsten carbide twist drill’s main geometric parameters include relevant handling drill corner selection, choose angle and the angle of the cutting edge before the drill, impact drill helix angle of the drill-life analysis and cutting edge.

The width of the tungsten carbide twist drill’s drill cuttings and drill apex decision anterior horn size. When the bit diameter and a certain amount of feed when the angle is increased, the iron is narrowed, the cutting edge of the unit load is reduced.Vertex has a great influence on the rake angle, a corresponding increase in the apex angle cutting conditions conducive to improving terrible at. Angle on the direction of chip flow. According to the relevant tool design data, combined with the hardness of the processed products is not high, but the viscous characteristics, select the tungsten carbide twist drill’s drill apex angle of 140 °.

 

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