Tungsten Carbide Screw-tap’ Tapping Problem and Solution II

Some problems often occur when the tungsten carbide screw-tap’s is tapping, involving the high surface roughness of the inner thread. There are several factors and solutions in the followings:

1.Tungsten carbide screw-tap’s selection is incorrect; Choosing the right conditions to be processed by the tungsten carbide screw-tap.

2.Cutting speed is too high; Reduce cutting speed.

3.Cutting Cone length is not enough; Increase the length of the cutting cone.

4.Chip poor; Choosing the right conditions to be processed by the tungsten carbide screw-tap.

5.Bottom diameter is too small;    Select the bottom hole diameter according to the corresponding standards.

6.Cold welding; Improve the cooling and lubrication conditions.

 

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