Ask ASKO

Problems

Possible Cause and Solution

Heavy Burr (moustache)

• Feed forces too high - Reduce
• Saw teeth worn - Resharpen
• Tooth design inappropriate - Consult ASKO

Heavy Burr (splashout)

• Too much heat - Teeth worn - Resharpen
• Too much heat - Design inappropriate - Consult ASKO

Part deforms

• Clamping forces too high - Reduce
• Clamping surfaces worn - Repair or replace
• Saw teeth worn - Resharpen
• Tooth design inappropriate - Consult ASKO

Cutting out of square

• Workpiece moving - Check clamping
• Saw blade not running true - Check if blade if flat: if mounting surfaces are clean and undamaged: bearings and flanges are running true
• Check to see if coolant delivery is equal on both sides
• Teeth are worn or feed rate is too high
• Tension is incorrect - Consult manufacturer *
• In case of Flying saws, synchronization of saw and workpiece motion is necessary

Early wear

• Coolant failure - Check for nozzle blockage
• Inconsistent grinding - Check that tooth form is as designed and burning (softening) is not occurring during grinding
• In the case of hot sawing, check that work is not colder than normal

Tooth loading/clogging

• Insufficient gullet space - Check tooth form is as designed
• Extreme tooth wear - Resharpen
• Incorrect pitch for application - Consult ASKO

Cracks in gullet

• Gullet radius too small or poorly blended into tooth flanks
• Saw blade has been run too long before resharpening
• Blade may be too hard in area of gullet

Heavy vibration

• Saw teeth badly worn - Resharpen
• Tension may be incorrect - Consult manufacturer *
• Pitch may be incorrect for application - Consult ASKO
• Spindle bearings may need attention