Function of Each Cutting Edge Angle in Face Milling

Function of Tool Features for 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.
Tool Cutting Edge Angle	KAPR	Determines chip thickness.	Small : Thin chips and small cutting impact. Large back force.
True Rake Angle	GAMO	Determines actual sharpness.	Positive (large) : Excellent machinability. Minimal welding. Negative (large) : Poor machinability. Strong cutting edge.
Cutting Edge Inclination	LAMS	Determines chip disposal direction.	Positive (large) : Excellent chip disposal. Low cutting edge strength.