Page 8 - ILPT catalogue
P. 8
CHOOSING THE RIGHT GRADE & GEOMETRY
CHOOSE THE RIGHT GEOMETRY
The insert geometry and edge preparation are extremely important as they have a significant influence on tool life and productivity. The ILPT PCBN product range includes inserts with standard nose radius, wipers and the unique design. The standard nose radius generates the lowest cutting forces and has the lowest stability requirements while wipers are an unbeatable combination of high productivity and excellent surface finish.
CHOOSETHE RIGHTStandard Nose Radius
Nose radius of the insert is an important performance parameter:
• A small nose radius: 02, 04 (0.008-0.016 inch) provides good chip breaking.
• A large nose radius: 08, 12 (0.03-0.05 inch) generates better surface finish and produces thinner chips, which reduces the degree of crater wear in hard part turning operations.
• The combination of a large nose radius with a small depth of cut results in reduced entry and exit forces.
In general, a large nose radius provides greater edge strength and therefore extended tool life. Use the largest nose radius allowed based on your process requirements.
