Too little feed causes rubbing
Operators sometimes slow feed when they hear noise or fear tooth breakage. In stainless steel and other demanding metals, that can make heat worse because the blade rubs and may work-harden the surface.
Saw Blade Burning
Feed Rate and Chip Load: How Wrong Feed Burns Saw Blades
Why incorrect feed rate and chip load cause saw blade overheating, burn marks, poor surface finish and short blade life.
Each tooth should remove a controlled chip. If feed is too slow, the tooth slides over the surface and polishes instead of cutting.
If feed is too aggressive, teeth chip, vibration rises and the damaged edge begins to rub and burn.
Practical takeaway:
Correct feed creates chips. Too-light feed makes teeth rub; too-heavy feed overloads teeth. Both conditions generate heat.
Too much feed causes overload
Overfeeding creates impact load, tooth chipping, rough cut faces and stalled chips. The correct target is stable chip thickness, not maximum pressure.
Feed troubleshooting table
| Symptom | Feed problem | Correction |
|---|---|---|
| Fine dust, squeal and blue edge | Feed too light; teeth rubbing | Increase feed within recommendation and check sharpness. |
| Tooth chipping with heat | Feed too heavy or machine unstable | Reduce feed and inspect clamping/runout. |
| Burning after operator slows feed | Low chip load caused rubbing | Return to correct feed per tooth and check coolant. |
| Blade stalls or jumps | Excessive feed pressure | Reduce feed and inspect motor power and fixture stability. |
Recommended blade direction
For stable automatic machines, request starting feed per tooth with Ciswerk Cermet Cold Saw Blade or Ciswerk TCT Cold Saw Blade. For stainless tube, use Ciswerk TCT Cold Saw Blade and avoid low-feed rubbing. For conventional cold saws, use Ciswerk HSS Circular Saw Blade with coolant-fed feed pressure.
FAQ
Can feeding too slowly burn a saw blade?
Yes. Too-slow feed causes rubbing instead of cutting, which creates heat.
Can feeding too fast burn a saw blade?
Yes. Overfeeding overloads teeth, causes chipping and raises heat.