The consumable saw blade of the base paper cutting machine will gradually wear out during use, and proper grinding can extend the service life of the saw blade and improve cutting efficiency and quality. You can try your own Saw Blade Regrinding treatment, but you need to pay attention to the following points:
1. Performance Impact of Blade Wear
Worn saw blades reduce cutting efficiency by 18$R_z$) by up to 15μm. Proper regrinding restores:
- Tooth geometry ($α=35°±1°$, $β=15°±0.5°$)
- Surface hardness (HRC 58-62)
- Cutting force stability ($ΔF_c<5\text{N}$)
2. Precision Saw Blade Regrinding Procedure
2.1 Pre-Treatment
- Debris Removal:
- Ultrasonic cleaning (40kHz, 5min) for adhesive residues
- Surface inspection under 10× magnification (per ISO 4287)
2.2 Grinding Parameters
| Process Stage | Grinding Wheel | Speed (rpm) | Feed Rate (mm/tooth) |
|---|---|---|---|
| Primary Grinding | 500# CBN | 4200 | 0.05-0.08 |
| Finishing | 600# Diamond | 3800 | 0.02-0.03 |
Note: Maintain coolant flow (5-8L/min) at 20°C to prevent thermal distortion
2.3 Geometric Verification
- Use optical comparators to verify$$tan(α)=\frac{h_t}{p_t}$$
Where $h_t$$p_t$=pitch - Tolerance: ±0.2° for rake angles
3. Advanced Maintenance Solutions
- Automated Systems:
- CNC grinding machines (e.g., TWIN 860) with servo feed (±1μm positioning)
- Laser surface tracking for real-time wear compensation
- Protective Measures:
- Anti-corrosion coating (MoS₂-based) during storage
- Tooth guards made of PET-G tubes (0.5mm wall thickness)
4. Economic Considerations of Saw Blade Regrinding
- Manual regrinding cost: \$0.8-1.2/blade
- Professional service ROI: 3.2× lifespan extension
- Productivity gain: 12-15% throughput increase
For high-volume operations (>500 blades/month), consider LDX-026A CNC grinders with 2000mm capacity.
: Robotic grinding force control research (2024)
: LOROCH TWIN 860 specifications
: CNC grinder maintenance protocols