Cutting Force on Tungsten Carbide Boring Tool

Acting on the tungsten carbide boring tool is available for a rotating cutting force dynamo-meter measurements. Measured forces include tangential force, feed force and radial force. Compared with the other two forces, the maximum magnitude of the tangential force.

Tangential force acting on the rake face perpendicular to the blade, and the tungsten carbide boring tool to push down. Note that the tangential force is applied near the blade tip, rather than acting on the central axis of the shank, which is crucial. Tangential force generating a deviation from the center line of the arm (the distance from the center to the holder by force point), thereby forming a moment, it will cause the tungsten carbide boring tool relative to the center-line of torsional deformation occurs.

Feed force is the magnitude of the second largest force, and its role in the direction parallel to the center line of the shank, and therefore does not cause tungsten carbide boring tool deflection. Radial force acting direction perpendicular to the center-line arbor, it will be pushed away from the boring tool machined surface.

Therefore, only the tangential and radial forces will produce tungsten carbide boring tool deflection. It has been used for decades as an empirical algorithm: Feed the size and radial forces were about 25% and 50% tangential force.Today, however, the proportion of people think this relationship is not "optimal algorithm", because the relationship between the various cutting force depends on the particular work-piece material and hardness, cutting conditions and tool nose radius.

 

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