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Guarda su YouTube2-Flute · Uncoated · R5.5mm Ball · Aluminium · Standard Reach
11mm 2-Flute Uncoated Solid Carbide Ball Nose End Millfor Aluminium & Non-Ferrous 3D Surface Machining
Uncoated (bright-polished) ball nose end mills with 2 flutes are specifically optimised for high-speed 3D contouring in aluminium alloys, copper, graphite, and soft non-ferrous materials. The mirror-polished flute surface prevents built-up edge (BUE) that can degrade surface finish in soft metals. Large chip gullets ensure complete swarf evacuation even at spindle speeds above 20,000 RPM. Ideal for electrode machining (EDM graphite) and aluminium aerospace structural components.
R5.5mm BallD1 11mmL2 25mmD2 12mmOAL 75mm2 FlutesUncoatedNon-FerrousStandard ReachMOQ 1 pc
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Prezzo di riferimento
42,81 €
Prezzo fabbrica rif. (EUR)
Basato sul costo barra al 2026-07-10. Il preventivo finale può variare.
R5.5mm 2F Uncoated Ball Nose EM
L2 25mm · D2 12mm · OAL 75mm
Standard Reach · Aluminium
✓ Factory direct pricing
✓ MOQ 1 piece, ships 1–5 days
✓ Custom ball radii available
Full Dimensions
Technical Specifications
| Ball Radius (R) | 5.5 mm |
| Cutter Diameter (D1 h7) | 11 mm |
| Flute Length (L2) | 25 mm |
| Shank Diameter (D2 h6) | 12 mm |
| Overall Length (L1) | 75 mm |
| Number of Flutes | 2 |
| End Geometry | Ball Nose (Spherical) |
| Coating | Uncoated Bright polished |
| Max Material Hardness | N/A (non-ferrous optimised) |
| Reach Category | Standard (D2/L1 = 0.160) |
| Substrate | K10/K20 Ultra-Fine Grain Carbide |
| Shank Tolerance | h6 |
| MOQ | 1 piece |
| Lead Time (standard) | 1–5 business days |
| Lead Time (custom) | 5–15 business days |
Uncoated · 2 Flute · Aluminium
Ball R
5.5mm
D1 h7
11mm
L2
25mm
D2 h6
12mm
L1
75mm
Reach
Standard
Where This Tool Excels
R5.5mm Uncoated 2F — Recommended Applications
- ▸Injection mould parting surface contouring
- ▸Wind turbine blade mould 3D finishing
- ▸Structural aerospace component contouring
- ▸Large forging die rough and semi-finish passes
Machining Tip: R5.5mm produces wide effective cutting zone. In aluminium alloy, use 10–20% D1 step-over for semi-finish; this gives scallop < 0.05mm. At this diameter, ensure minimum wall thickness of 6mm for workholding rigidity, or use vibration-damping toolholder.
3D Finishing Reference
Scallop Height vs Step-Over — R5.5mm
Residual scallop height (cusps) between adjacent tool paths, calculated for R5.5mm ball nose:
| Step-Over | Step-Over mm | Scallop Height (µm) | Typical Ra (µm) |
|---|---|---|---|
| 2% D1 | 0.22 | 1.1 | ≈ 0.22 |
| 5% D1 | 0.55 | 6.9 | ≈ 1.38 |
| 8% D1 | 0.88 | 17.6 | ≈ 3.53 |
| 10% D1 | 1.10 | 27.6 | ≈ 5.51 |
| 15% D1 | 1.65 | 62.2 | ≈ 12.45 |
| 20% D1 | 2.20 | 111.1 | ≈ 22.22 |
h = R − √(R² − (ae/2)²). Actual Ra depends on feed rate, chip load, and material.
ISO N
Coating Performance
Uncoated — Why It Works for Ball-End Machining
- ▸Mirror-polished flute — zero aluminium adhesion on ball profile
- ▸Eliminates built-up edge (BUE) during high-speed aluminium contouring
- ▸Large chip gullets for clean swarf evacuation at 20,000+ RPM
- ▸Ideal for graphite electrode and EDM insert 3D profiles
- ▸Use with air blast or light oil mist — no flood coolant needed
Related Ball Nose Variants
Same Size in Other Coatings
Order R5.5mm 2-Flute Uncoated Ball Nose Today
Factory direct. MOQ 1 piece. Pricing confirmed within 4 hours.
DAL NOSTRO REPARTO
Come affiliamo e controlliamo gli utensili
Due video girati nel nostro reparto: affilatura CNC e controllo dimensionale.
Misurare frese in metallo duro a 0,001 mm
Il controllo delle frese di precisione in metallo duro con il sistema ZOLLER.
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