-Troubleshooting for End Mills
Troubleshooting for End Mills
PROBLEM SUGGESTIONS
Chipping Check part rigidity
Verify speeds and feeds
Confirm concentricity of end mill in holder
Decrease ramp angle or slow down approach
Check coolant flow and location
Breakage Decrease feed rate
Decrease axial depth
Use shorter tool or stub holder
Resharpen earlier
Chattering Too light of a cut
Leave more stock for finish pass
Decrease axial depth
Adjust speeds and feeds
Part finish Confirm concentricity of end mill in holder
Decrease feed rate
Use different style of end mill
Check coolant flow and location
Check part rigidity
Burr Change end mill sooner / too much wear
Verify speeds and feeds
Increase spindle speed
Decrease feed rate
Use different style of end mill
Excessive noise Check part rigidity
Verify speeds and feeds
Too light of a cut
Confirm concentricity of end mill in holder
Tool life Work material harder than expected
Verify speeds and feeds
Recutting chips
Too light of a cut
Use different style of end mill
Wear Speed too fast
Too light of a feed
Confirm concentricity of end mill in holder
Verify speeds and feeds
Chip welding Verify speeds and feeds
Check coolant flow and location
Use different style of end mill
Chip packing Check coolant flow and location
Decrease axial depth
Adjust speeds and feeds
Use different style of end mill
Wall not straight Decrease feed rate
Decrease axial depth
Use shorter tool or stub holder
Use different style of end mill
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