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TURNING
Deterioration of Tool Life
Insert wear quickly generated
Chipping or fracturing of cutting edge
Out of Tolerance
Dimensions are not constant
Necessary to adjust often because of over-size
Deterioration of Surface Finish
Poor finished surface
Generation of Heat
Workpiece over heating can cause poor accuracy and short life of insert
Burrs, Chipping Etc.
Burrs (steel, aluminium)
Workpiece chipping (cast iron)
Burrs (mild steel)
Poor Chip Dispersal
long chips
Chips are short and scattered
MILLING
Deterioration of Tool Life
Insert wear quickly generated
Chipping or fracturing of cutting edge
Deterioration of Surface Finish
Poor fi nished surface
Not parallel or irregular surface
Burr, Workpiece Chipping
Burrs, chipping
Workpiece edge chipping
Chip Control
Poor chip dispersal, chip jamming and chip packing
END MILLING
Deterioration of Tool Life
Large peripheral cutting edge wear
Severe chipping
Breakage during cutting
Deterioration of Surface Finish
Vibration during cutting
Poor surface finish on walls
Poor surface finish on faces
Out of vertical
Poor dimensional accuracy
Burrs, Chipping, etc.
Burr or chipping occurs
Quick bur formation
Poor Chip Dispersal
Chip packing
DRILLING
Deterioration of Tool Life
Drill breakage
Large wear at the peripheral cutting edge and along the land
Chipping of the peripheral cutting edge
Chisel edge chipping
Deterioration of Hole Accuracy
Hole diameter increases
Hole diameter becomes smaller
Poor straightness
Poor hole positioning accuracy, roundness and surface finish
Burrs
Burrs at the hole exit
Poor Chip Dispersal
Long chips
Chip jamming
TROUBLE SHOOTING FOR DRILLING
Poor Chip Dispersal
Chip jamming