Tool wear types.CNC troubleshooting for turning tool.Tool wear and tool life.
What is tool wear?
Breakage or too short tool life.
To reduce breakage and reduce short tool life ,we need to reduce cutting data.
Reduce Feed rate & reduce cutting depth.
Wear Pattern on the insert.
| Wear pattern on the Insert | Trouble shooting |
| Insert Fracture | To avoid insert fracture we should select thicker insert,tougher grade and stronger chip breaker. You should reduce depth of cut and feed rate. |
| Edge chipping | We should select tougher grade and stronger chip breaker. Cutting speed- Increase Feed rate- Reduce |
| Notch wear | Cutting speed- Reduce Feed rate-Reduce Tool- Smaller setting angle. |
| Comb cracks | Cutting speed- Reduce Feed rate-Reduce Coolant flow- abundant flow/shut off coolant |
| Plastic deformation | Coolant- Use Grade-Wear resistance Cutting speed-Reduce Feed rate-Reduce |
| Flank wear | Cutting speed- reduce Grade-Wear resistance |
| Crater wear | Coolant- use Grade-Wear resistance Cutting speed- Reduce Feed rate-Reduce |
| Cutting edge build up | Cutting speed- Increase Coolant- Without Coolant Feed rate-increase |
| Chip Hammering | Feed rate- Change Depth of cut- Change Tool holder- Different setting angle |
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