ISCAR TIP TALK - Parameters for choosing the correct turning insert

Описание: How to choose the right Turning insert?

The selection of Turning inserts depends on several parameters:
The Application, the Machine stability, workpiece clamping stability, and Raw material hardness.
When selecting the Insert geometry:
For finishing and semi-finishing operations, use positive inserts with a small corner radius of 0.2 or 0.4mm.

For continuous medium cut, use a negative insert with an average corner radius of 0.8 to 1mm. In case of an interrupted cut or higher depth of cut, increase the corner radius in order to strengthen the cutting edge.

In case of unstable conditions such as low clamping stability, machining with low power consumption, or machining parts with a high overhang, use a positive insert with a small corner radius to help reduce the cutting forces.

How to choose the right Turning insert with Raw material hardness.
For Machining materials with a low hardness of 20HRC and up to 45 HRC, use PVD and CVD grades.
For Machining materials with higher hardness from 45 HRC and up to 60 HRC, use ISCAR’s Ceramic grades.

For hard part Turning with hardened materials from 55HRC and up to 70HRC, use ISCAR’s PCBN grades.

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