
| PROBLEM | CAUSE | SOLUTION |
| PLASTIC DEFORMATION | WRONG CARBIDE GRADE INSUFFICIENT COOLANT CUTTING SPEED TOO HIGH CUTTING RESISTANCE HIGH | CHANGE GRADE CHECK COOLANT FLOW DECREASE CUTTING SPEED INCREASE THE NUMBER OF PASSES |
| FRACTURE AND CHIPPING | UNSTABLE CONDITIONS CUTTING SPEED TOO HIGH DEPTH OF CUT LARGE POOR CHIP CONTROL WRONG CARBIDE GRADE INCORRECT CENTER HIGH WRONG ANVIL | CHECK TOOL AND WORKPIECE CLAMPING AND STABILITY DECREASE CUTTING SPEED INCREASE THE NUMBER OF PASSES CHANGE TO FLANK FEED CHANGE GRADE CHECK CENTER HIGH CHECK HELIX ANGLE |
| BUILT UP EDGE | INCORRECT CUTTING SPEED WRONG CARBIDE GRADE INSUFFICIENT COOLANT | INCREASE CUTTING SPEED CHANGE GRADE INCREASE COOLANT FLOW |
| VIBRATIONS | CUTTING SPEED TOO HIGH INCORRECT TOOL AND WORKPIECE INSTALLATION LARGE DEPTH OF CUT | CHANGE CUTTING SPEED CHECK CENTER HIGH AND CLAMPING INCREASE NUMBER OF PASSES |
| ASYMMETRIC WEAR OF THREAD FLANKS | INCORRECT ANVIL | CALCULATE HELIX ANGLE AND SELECT AN APPROPRIATE ANVIL |