Tungsten Carbide Twist Drill’s Rake

Tungsten carbide twist drill’s rake is depended on other geometric parameters.

When high-speed cutting tools, impact deformation and cutting tungsten carbide twist drill’s rake angle of the cutting force is small, while a smaller front corner tip can be enhanced intensity. After determining the current angle, the greater the tungsten carbide twist drill’s rake angle, the more sharp edge, but will correspondingly reduce the impact of the tungsten carbide twist drill’s wedge angle of the tool strength and heat dissipation area. To this end, the smaller the angle of the tungsten carbide twist drill’s drill is selected, taken as 8 °.

 

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