Sandvik Coromant Silent tools - application guide - Manual (Page 66)

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3. Turning
Internal grooving and profiling
Reduce the risk of vibration by applying the following tips:
• Set-up should have the shortest possible overhang with the
lightest cutting geometry possible
• Use a smaller insert and make several cuts instead of one
• Start from the outside and make overlapping cuts inwards for
best chip evacuation
• A finishing operation can be a side turning motion. Start from the
inside and turn outwards
• Ramping/turning can be used for improved chip control and may
reduce vibration
• Use right- or left hand style inserts to direct the chips when
roughing
Common set-up
Running the bar conventionally generates cutting forces that push
the insert downwards.
Alternative set-up
Running the bar upside down changes the direction of the cutting
forces which improves the stability. This can also improve chip
evacuation. This method requires careful considerations, even in
small diameters. If the cutting force is reduced to 0 by interrupted
cut, the bar will bounce against the workpice in turning direction
and receives a larger cut force which can damage both tool and
component.