Application Background
5-axis CNC tool grinders have become the mainstream solution for manufacturing and regrinding end mills, drills, form cutters, thread mills, and taps. Tool grinding involves complex geometries and tight tolerances, requiring grinding wheels that balance cutting efficiency, shape retention, heat control, and long-cycle stability—especially for automated or unattended production.
Machining Challenges
- Deep-flute and high-removal operations (Deep Fluting / Gashing / O.D. Grinding)
Deep flute grinding generates heat and heavy load; insufficient heat dissipation or stability can cause burning, inconsistent surface finish, and dimensional drift. - Shape retention and dimensional consistency
In 5-axis tool grinding, wheel profile directly defines tool geometry. Profile wear or deformation impacts tool angles, radii, and repeatability. - Dressing frequency and downtime
Unattended production requires wheels that maintain cutting performance and profile for extended cycles with minimized dressing. - High-precision small radius (R) and
various V-angles
Form cutters, thread tools, taps, and micro tools demand extremely precise radii and angles, which are difficult to hold without strong shape retention.
Besdia Solutions
We provide three optimized bond systems (Diamond & CBN Grinding Wheels) for CNC 5-axis tool grinding:
1) XM Metal Hybrid Bond
- Excellent heat dissipation, thermal resistance, and cutting capability, ideal for deep flute grinding on CNC 5-axis machines.
- Strong shape retention for stable gashing and O.D. grinding, helping minimize dressing.
- Designed for 24-hour automated processing, improving productivity and wheel life.
- Also ideal for End Face and Eccentric Relief grinding, supporting long-term processing without frequent dressing.
2) Resin Bond
- Highest flexibility with superior surface finish after grinding.
- Easy to dress, allowing convenient self-sharpening, angle adjustment, and radius correction.
- Cost-effective and widely used; with Besdia’s formulation, it is ideal for CNC 5-axis tool grinding.
3) Metal Bond
- Highest bond strength and outstanding shape retention, ideal for form grinding such as form grooves and radius grinding.
- Provides the longest service life and best shape retention, ensuring dimensional control after grinding.
- Meets high-precision requirements for extremely small radius (R) and various V angles on 5-axis CNC tool grinding centers.
- Typical applications: custom form cutters, thread mills, taps, micro-diameter end mill
Key Features
- High-efficiency deep flute grinding with strong cutting and heat control (XM Hybrid).
- Reduced dressing and stable performance for long-cycle/unmanned operation (XM Hybrid / Metal Bond).
- Excellent surface finish and easy dressing for flexible shop-floor correction (Resin Bond).
- Form accuracy for small R and V-angles with superior dimensional consistency (Metal Bond).
Process-to-Bond Recommendation
| Process Description / Application |
Recommended Bond System |
Reason for Recommendation / Advantages |
| Deep Fluting / Gashing / O.D. Grinding → XM Metal Hybrid Bond |
XM Metal Hybrid Bond |
High material removal rate, excellent heat dissipation, stable shape retention, and reduced dressing frequency. |
| End Face / Eccentric Relief → XM Metal Hybrid Bond |
XM Metal Hybrid Bond |
Suitable for long-term continuous grinding, stable cutting performance, and requires less frequent dressing. |
| Finish grinding + easy dressing → Resin Bond |
Resin Bond |
Excellent surface quality finish, easy dressing, and highly convenient for on-site angle and radius adjustments. |
| Form grinding / small R / V angles / Thread mills / Taps / Micro tools → Metal Bond |
Metal Bond |
Optimal shape retention, high dimensional consistency, ideal for complex profiles and high-precision forming requirements. |
