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Endmills  

NUMBER OF FLUTES(z)

The number of flutes should be determined by the work material, dimensions of the work piece and milling conditions. In general, an end mill with a small number of flutes and large chip room is used for roughing and an end mill with a large number of flutes is used for finishing.

2 flutes 3 flutes 4 flutes
(center cut)
4 flutes
(center hole)
6 flutes
(center hole)


LENGHTH OF CUT(Lc)

The shorter the end mill, the smaller the deflection and the stronger the rigidity. Because rigidity varies in proportion to length of cut by a factor to the power of 3 (for example, when the length of cut doubles, the rigidity decreases to 1 / 8), it is necessary to keep the length of cut as short as possible.


END PROFILE

Stocked end profiles are typically square end, ball end and radius end. Corner radius, corner chamfer, corner rounding and drill nose end profiles can be supplied via special order.

Square Ball Nose Corner Radius Corner
Chamfer
Corner
Rounding
Drill
Nose


 
 
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