Каталог Dormer Pramet фрезерование 2021 - 2022 - страница 212

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TROUBLESHOOTING

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