Up
Carbide Troubleshooting
Turning
Problem
Solution
Reduce Cutting Speed
Increase Cutting Speed
Reduce The Feed
Increase the Feed
Reduce The Cutting Depth
Increase The Cutting Depth
Select a Tougher Grade
Select a Smaller Nose Radius
Select A Positive Geometry
Flank Wear
X
Notch Wear
X
Cratering
X
X
X
Plastic Deformation
X
X
Built Up Edge
X
X
Small Cracks perpendicular to the cutting edge
X
Small Cutting Edge Fracture (frittering)
X
X
X
Insert breakage
X
X
X
Curling of Long Chips
X
X
X
Vibrations
X
X
X
X
Milling
Problem
Solution
Reduce Cutting Speed
Increase Cutting Speed
Reduce Feed /Tooth
Increase Feed / Tooth
Select a more wear resistant grade
Select a tougher grade
Use a course pitch cutter
Change the cutter position
Do not use coolant
Flank Wear
X
X
X
Notch Wear
X
X
X
X
Cratering
X
X
Plastic Deformation
X
X
X
Built Up Edge
X
X
X
Small Cracks perpendicular to the cutting edge
X
X
X
Small Cutting Edge Fracture (frittering)
X
X
X
Insert breakage
X
X
X
Vibration
X
X
X
Bad Surface Finish
X
X
X
Formulas
Cutting Speed, ft/min.
V
C
= (Pi * D
c
* n)/12
Where
V
C
= cutting speed ft.min
n = revolutions/Min.
D
c
= diameter inch
