Function of Tool Features for Face Milling

Function of Each Cutting Edge Angle in Face Milling

Function of Each Cutting Edge Angle in Face Milling
Type of Angle Symbol Function Effect
Axial Rake Angle GAMP Determines chip disposal direction. Positive : Excellent machinability.
Radial Rake Angle GAMF Determines sharpness.
 Negative : Excellent chip disposal.
Lead Angle KAPR Determines chip thickness.
 Small : Thin chips and small cutting impact. Large back force.
True Rake Angle T Determines actual sharpness. Positive (large) :
Excellent machinability.
Minimal welding.
Negative (large) :
Poor machinability.
Strong cutting edge.
Cutting Edge Inclination I Determines chip disposal direction.
 Positive (large) :
Excellent chip disposal.
Low cutting edge strength.

Standard Inserts

Positive and Negative Rake Angle

Positive and Negative Rake Angle

Standard Cutting Edge Shape

Standard Cutting Edge Shape