Positive geometries, Wiper inserts – Sandvik Coromant Silent tools - application guide User Manual

Page 47

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3. Turning

Positive geometries

Positive geometries and positive rake angles generate less cutting
forces and less deflection of the tool. Therefore, choose the most
positive geometry you can, with a chip-breaker suitable for your
cutting data. This may decrease the wear resistance and edge
strength somewhat, as well as the chip-control, so vibration control
is always a balance.

Wiper inserts

Wipers are usually not first choice when it comes to avoiding
vibration, as the increased cutting forces and radial deflection
are difficult to overcome. In very stable conditions, however, wiper
inserts can provide true benefits in surface finish and increased
cutting data.

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