Каталог Iscar державки и пластины для нарезания резьбы 2022 - страница 92

THREADING Plastic DeformationPremature WearInsert BreakageBuild Up EdgeVibration USER GUIDE Troubleshooting Cause Solution • Excessive heat in cutting zone • Reduce RPM / Reduce depth • Wrong carbide grade of cut / Check turned dia. • Inadequate coolant supply • Use coated grade / Use harder grade • Depth of cut too large • Apply coolant • Cutting speed too high • Reduce depth of cut / • Nose radius too small Increase no. of passes • Reduce cutting speed • If possible use insert with larger radius • Cutting speed too high • Reduce RPM • Infeed depth too small • Modify flank infeed / Increase depth of cut • Highly abrasive material • Use coated grade • Inadequate coolant supply • Apply coolant • Wrong inclination anvil • Reselect anvil • Wrong turned dia. prior to threading • Check turned dia. • Insert is above center line • Check center height • Wrong turned dia. prior to threading • Check turned dia. • Wrong grade • Use tougher grade • Poor chip control • Change to M-Type / B-Type inserts • Incorrect center height and use modified flank infeed • Check center height • Cutting edge too cold • Increase RPM / Increase depth of cut • Wrong grade • Use coated grade • Inadequate coolant supply • Apply coolant • Incorrect cutting speed • Increase cutting speed • Incorrect workpiece clamping • Use soft jaws • Incorrect tool setup • Check tool overhang / Use • Incorrect cutting speed anti-vibration bars • Incorrect center height • Increase cutting speed • Check center height 726 ISCAR