Key Specifications for Custom Manufactured Carbide Cutting Blades
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- publisher
- Bree
- Issue Time
- Nov 9,2026
Summary
Understand the key technical specifications of custom manufactured carbide cutting blades, including alloy grade, dimensional tolerance, surface roughness, edge radius and hardness index for your custom drawing review.
Full Article Structure
- 1. Introduction: Why Clear Specs Matter For Custom Carbide Blades
- 2. Alloy Grade & Physical Property Specifications
- 3. Dimensional Tolerance & Form Tolerance
- 4. Edge Parameter, Surface Finish & Coating Specs
- 5. FAQs About Custom Carbide Blade Technical Specifications
- 6. Summary: Complete Spec Sheet Reduces Customization Risk
1. Introduction: Why Clear Specs Matter For Custom Carbide Blades
Many custom blade failures come from ambiguous technical requirements. When placing custom orders, complete specifications help us select the right carbide grade, set grinding tolerance and edge treatment. This avoids repeated sample revision and unexpected performance gaps after production.
2. Alloy Grade & Physical Property Specifications
| Spec Item | Common Parameter Range | Effect On Blade |
|---|---|---|
| Cobalt Content | 6% ~ 12% | Higher cobalt for impact resistance; lower cobalt for high hardness wear |
| Grain Size | 0.4μm ~ 2.0μm | Fine grain improves cutting edge sharpness and wear resistance |
| Hardness HRA | 88 ~ 92.5 | Directly determines wear resistance and brittleness |
3. Dimensional Tolerance & Form Tolerance
- Thickness tolerance: general ±0.01mm, precision grade ±0.003mm
- Flatness: critical for blades clamped on cutting holders
- Hole position tolerance: for mounting holes of circular or rectangular blades
- Parallelism: ensures uniform contact between blade and tool seat
Even if the material grade is correct, out-of-tolerance flatness will cause uneven cutting force and premature edge chipping.
4. Edge Parameter, Surface Finish & Coating Specs
Edge radius, rake angle, clearance angle and surface Ra value are core specifications for cutting performance. For coated blades, coating thickness, coating type and adhesion requirement should also be written clearly in your drawing. For example, Ra 0.2μm polished rake face is widely used for sticky material cutting to reduce built-up edge.
5. FAQs About Custom Carbide Blade Technical Specifications
Q1: Can you adjust hardness while keeping the same cobalt ratio?
We can adjust sintering process and grain size to fine-tune hardness within a small range.
Q2: What tolerance should I choose for non-critical dimensions?
We suggest relaxed tolerance for non-functional surfaces to control production cost and lead time.
Q3: Can you provide material test certificate for each batch?
Yes, we can supply hardness, density and metallographic inspection reports as specification requested.
6. Summary: Complete Spec Sheet Reduces Customization Risk
Before custom carbide blade manufacturing, confirm alloy grade, hardness, tolerance, edge geometry and surface finish together. Clear specifications help us produce matching blades on the first sample run and save your testing cost.
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Send your drawing, our engineer checks and sorts out the full specification list for custom carbide blades.
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We quote according to your complete technical specification requirements.
Disclaimer
Parameters are for reference. Final specifications should be verified with actual cutting test for your workpiece material.