First choice, Insert geometries – Sandvik Coromant Threading User Manual

Page 15

2. Applications – Thread turning

Geometry A

First choice

• First choice for most op-

erations and materials

• Rounded cutting edge for

safe and consistent tool
life

• Good edge security

Geometry F

Sharp edge

• Sharp cutting edge

• Clean cuts in sticky or

work-hardening materials

• Low cutting forces and

good surface fi nish

• Reduced built-up edge

Geometry C

Chip-forming geometry

• Maximum chip control,

minimum supervision
required

• High security for all

threading, particularly
internal

• Optimized for low carbon-

and low-alloyed steels

• To be used with 1° modi-

fi ed fl ank infeed only

Insert geometries

Selecting the correct insert geometry is important in threading,
especially in machines where there is limited supervision. Here,
geometry A offers consistent tool life and quality and is the fi rst
choice for most applications, while geometry F is sharper, reducing
cutting forces.

The chip-forming geometry C enables more continuous and un-
supervised machining, free from sudden stoppages. This results in
predictable tool life, and more active machining time.

First choice