Problems and solutions
Thermal cracks
Decrease feed per tooth [fz]
Increase cutting speed [Vc]
Chipping of the cutting edges
Decrease feed per tooth [fz]
Control rigidity machine, workpiece and fixture
Change to climb milling
Minimize overhang
Fatal breakage
Increase cutting speed [Vc]
Decrease feed per tooth [fz]
Decrease depth of cut [Ap]
Minimize overhang
Optimize chipflow by coolant air pressure
Decrease width of cut [Ae]
Wear on relief angle
Increase feed per tooth [fz]
Decrease cutting speed [Vc]
Use coated grade
Built up edge
Increase cutting speed [Vc]
Increase feed per tooth [fz]
Optimize coolant flow
Check emulsion percentage
Chattering
Optimize workpiece fixture
Change to climb milling
Change to other cutting geometry
Decrease metal removal rate [Q]
Bad workpiece surface
Increase cutting speed [Vc]
Optimaze rigidity
Use multi-fluete endmills
Use higher helix angle