Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 212

Предыдущая страница Следующая страница

Навигация

9 TROUBLESHOOTING Problem Solution • Try air blow or coolant • Check tool runout • Reduce depth of cut • Improve the stability of the work-holding Chipping of the Cutting Edge • Check amount of wear on collet • Reduce feed per tooth • If wet cutting, change to dry cutting • Use coated end mill • If conventional milling, change to climb • If conventional milling, change to climb Extreme Flank Wear • If using water soluble cutting fluid, change to non-water soluble cutting fluid • Use a tool with a larger helix angle • Use larger diameter end mill • Check or change the holder • Increase feed per tooth • Increase number of flutes Vibration/Chattering • Increase helix angle • Tighten chuck or use stronger chuck • Reduce length of flutes or overhang • Reduce cutting speed • Reduce depth of cut • Use larger diameter end mill • Increase feed per tooth • Reduce length of flutes or overhang Deflection • Increase helix angle • If using 2-flute type, change to 4-flute type • If using water soluble cutting fluid, change to non-water soluble • If climb milling, change to conventional milling cutting fluid • Reduce end mill runout • Increase volume of air or cutting fluid • Increase cutting speed • Reduce depth of cut Poor Surface Finish • Reduce feed per tooth • If dry cutting, change to wet cutting • Increase helix angle • Increase number of flutes • Reduce helix angle • Check end mill runout Waviness • Reduce depth of cut • Check or change the holder • Reduce depth of cut • Reduce feed per tooth End Mill Fracturing • Reduce length of flutes or overhang • If chip jamming occurs, reduce the number of flutes • Use air blow • Increase cutting speed • Reduce depth of cut Poor Chip Disposal • Reduce feed per tooth • Reduce the number of flutes • Increase volume of air or cutting fluid • Reduce helix angle • Reduce feed per tooth Burring Workpiece Chipping • Reduce depth of cut • Use coolant • Use coated end mill Chip Welding • Increase volume of cutting fluid • Increase helix angle 211