TROUBLE SHOOTING FOR FACE MILLING

• Insert wear quickly generated
• Chipping or fracturing of cutting edge

• Poor fi nished surface
• Not parallel or irregular surface

• Burrs, chipping
• Workpiece edge chipping

• Poor chip dispersal, chip jamming and chip packing

TROUBLE SHOOTING FOR END MILLING

• Large peripheral cutting edge wear
• Severe chipping
• Breakage during cutting

• Vibration during cutting
• Poor surface finish on walls
• Poor surface finish on faces
• Out of vertical
• Poor dimensional accuracy

• Burr or chipping occurs
• Quick bur formation

• Chip packing

TROUBLE SHOOTING FOR DRILLING

• Drill breakage
• Large wear at the peripheral cutting edge and along the land
• Chipping of the peripheral cutting edge
• Chisel edge chipping

• Hole diameter increases
• Hole diameter becomes smaller
• Poor straightness
• Poor hole positioning accuracy, roundness and surface finish

• Burrs at the hole exit

• Long chips
• Chip jamming