Sandvik Coromant Silent tools - How to reduce vibration in metal cutting - Manual (Page 53)

Sandvik Coromant – How to reduce vibration in metal cutting 49
Insert
1. Choose a light cutting insert with a positive cutting geometry. Knife-
edge inserts are first choice.
2. Choose a small nose radius. For finish boring recommended nose radius
is 0.2 mm. Do not use larger nose radius than 0.4 mm. Try to choose a
nose radius which is smaller than the depth of cut.
3. Use sharp inserts with relatively thin coatings. Try an uncoated insert.
They will have a sharper cutting edge.
4. T-style inserts are first choice for boring operations.
Entering angle
1. The entering angle should be close to 90 deg. This will give more axial
cutting forces and less radial/tangential forces.