Page 107 - Turning_catalog_INCH_2022_45_P691-914

USER GUIDE

Cause Solution THREADING

• Unsuitable threading profile • Adjust to correct tool, anvil, and insert
• Incorrect center height
• Adjust center height
Incorrect Thread Profile
• Change the program
• Incorrect pitch in the program

• Cutting edge too cold • Reduce RPM
• Depth of cut too large • Reduce depth of cut/Increase
Broken Nose During 1 st Pass • Incorrect center height • Check turned dia.
number of infeed passes
• Wrong grade
• Use tougher grade
• Wrong turned dia. prior to threading
• Infeed depth too shallow
• Adjust center height
• Change depth of cut
• Wrong inclination anvil
• Reselect anvil
• Tool overhang tool long
• Reduce tool overhang / Use
Anti-vibration bar

• Wrong cutting speed • Increase/reduce RPM
• Excessive heat in cutting zone • Reduce depth of cut
Poor Surface Finish • Inadequate coolant supply • Apply coolant
• Modify flank infeed
• Poor chip control
• Reselect anvil
• Wrong inclination anvil
• Tool overhang too long
• Reduce tool overhang
• Check center height
• Incorrect center height

• Excessive heat in cutting zone • Reduce RPM /change depth
of cut /check turned dia.
• Wrong grade • Use coated grade /check turned
Poor Chip Control • Wrong turned dia. prior to threading • Apply coolant
• Inadequate coolant supply
dia./use M/B-Type inserts
• Incorrect method of infeed
• Check turned dia.
• Modify flank infeed 3-5°

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