GENERAL TECHNICAL INFORMATION TROUBLE SHOOTING (EN) PROBLEM CAUSED BY SOLUTION • Cutting speed too high • Reduce RPM • Infeed depth too small • Increase depth of cut • Modify flank infeed • 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. Premature wear • Insert is above centerline • Check center height • Cutting speed too high • Reduce RPM • Depth of cut too large • Reduce depth of cut • Wrong grade • Use coated grade • Use tougher grade • Poor chip control • Modify flank infeed • Inadequate coolant supply • Apply coolant Chipped edge • Center height incorrect • Adjust center height • Excessive heat in cutting zone • Reduce RPM • Reduce depth of cut • Check turned dia. • Wrong grade • Use coated grade • Use harder grade • Apply more coolant Plastic deformation • Inadequate coolant supply • Cutting edge too cold • Increase RPM • Increase depth of cut • Wrong grade • Use coated grade • Inadequate coolant supply • Apply coolant Built-up edge • Cutting speed too low • Increase RPM • Depth of cut too large • Reduce depth of cut • Increase number of infeed passes • Wrong grade • Use tougher grade • Wrong turned dia. prior to threading • Check turned dia. • Corner height incorrect • Adjust center height • Infeed depth too shallow • Modify flank infeed Broken noseduring 1st pass • Wrong inclination anvil•Tool overhang too long • Reselect anvil•Reduce tool overhang Poor surface finish • Wrong cutting speed • Increase RPM • Reduce RPM • Excessive heat in cutting zone • Reduce depth of cut • Poor chip control • Modify flank infeed • Inadequate coolant supply • Apply coolant • Wrong inclination anvil • Reselect anvil • Tool overhang too long • Reduce tool overhang • Center height incorrect • Check center height Poor chip control • Excessive heat in cutting zone • Reduce RPM • Change depth of cut • Wrong grade • Use coated grade•Check turned dia. • Use M-type insert • Inadequate coolant supply•Wrong turned dia. prior to threading•Apply coolant•Check turned dia. 1267