| Chipping |
| lack of rigidity |
| not enough chamfer on
cutting edge |
| chipbreaker too narrow |
| chatter |
| scale or inclusions |
| improper grinding |
| too much relief |
| defective or burred toolholder
or shim seat |
| return
to top |
| |
| Cratering |
| chipbreaker set too
tight |
| nose radius too large |
| side cutting edge angle
too great |
| return
to top |
| |
| Cracking or Breaking |
| insert surfaces not
flat |
| insert not seated
solidly |
| stopping workpiece
while tool is engaged |
| worn or chipped cutting
edges |
| feed too heavy |
| improperly applied
coolant |
| too much rake or relief |
| too much overhang or
tool too small |
| lack of rigidity in
setup |
| speed too slow |
| too much variation in
depth of cut |
| chatter |
| grinding cracks |
| defective or burred
toolholder or shim seat |
| return
to top |
| |
| Chatter |
| tool not on center |
| insufficient relief and
or clearance |
| too much rake |
| too much overhang or
tool too small |
| nose radius too large |
| feed too heavy |
| lack of rigidity |
| insufficient power, or
slipping clutch |
| return
to top |
| |
| Torn
Finish |
| lack of rigidity |
| dull tool |
| speed oto slow |
| chipbreaker too narrow
or too deep |
| improper grinding |
| return
to top |
| |
| Excess
Wear |
| speed too high or feed
too light |
| speed too low |
| nose radius too large |
| improper grinding |
| return
to top |
|
|
|