
GROOVING / CUTTING OFF
GROOVING / CUTTING OFF
MACHINING RECOMMENDATIONS
Notes for cutting off
feed
Distance from the cutting edgeto the workpiece centera When the cutting edge approaches the center, reduce the feed by
50%.
a If necessary, stop the feed prior to reaching the center of the
workpiece. The part will fall off because of its own weight.
Feed f
Distance a
Revolution
Distance from the cutting edgeto the workpiece centera When using constant cutting speed during a cutting off cycle, it is
F recommended to limit the spindle speed to 80% of maximum to
ensure stability.
a To prevent the workpiece from being expelled, lower the spindle
speed before finishing the grooving operation.
Maximum spindle speed Revolution nmax-n
start-n
Distance a
insert
Neutral insert Handed insert Neutral insert Handed insert
a When there is a center stub on solid bar work or burrs are formed on pipe material, it is possible to decrease them by using a handed insert.
With a handed insert, machining tends to be less stable when compared to using a neutral insert. Pay special attention to avoid fracturing of
the cutting edge and decrease the feed when necessary.
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