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Troubleshooting Guide
10.
Issue
Flank & notch wear
Frittering
Poor surface finish
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a) Rapid flank
wear
b)/c) Notch
wear causing
poor surface
finish & risk of
edge breaking.
Small cutting
edge fractures
(frittering)
causing poor
surface finish
and excessive
flank wear.
Wavy, rough or
inconsistent
finish on work
piece.
Doc: MML265
Issue: 004
Reason for wear
a) Cutting
Reduce cutting
speed too high
speed. Select
or insert has
more resistant
insufficient
grade of insert.
wear
resistance.
a) Feed too low Increase feed
rate
b)/c) Material
Reduce cutting
work hardens
speed.
Select tougher
grade
b)/c) Skin &
Increase
scale
cutting speed.
Grade too
Select tougher
brittle.
grade.
Insert geometry
Select insert
too weak.
with tougher
geometry
Built up edge
Increase
cutting speed
or select a
positive
geometry.
Reduce feed at
beginning of
cut.
Feed too high
Reduce feed.
Wrong insert
Change
position
position
Deflection
Check
overhang
Bad stability
Check stability
Issue Date: 13.06.2013
Page 32 of 39
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