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Guarda su YouTube2-Flute · TiSiN · R3.5mm Ball · HRC55 · Standard Reach
7mm 2-Flute TiSiN Solid Carbide Ball Nose End Millfor HRC55 3D Contouring & Mould Work
TiSiN-coated 2-flute ball nose end mills deliver superior chip clearance during 3D contouring and cavity machining in steel and stainless steel up to HRC55. With fewer flutes, cutting forces remain low during ramping, helical entry, and Z-level finishing passes — ideal for deep mould cavities and complex aerospace profiles. TiSiN hardness > 3,500 HV resists abrasion and oxidation at elevated cutting temperatures.
R3.5mm BallD1 7mmL2 20mmD2 8mmOAL 60mm2 FlutesTiSiNHRC55Standard ReachMOQ 1 pc
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Prezzo di riferimento
16,29 €
Prezzo fabbrica rif. (EUR)
Basato sul costo barra al 2026-07-10. Il preventivo finale può variare.
R3.5mm 2F TiSiN Ball Nose EM
L2 20mm · D2 8mm · OAL 60mm
Standard Reach · HRC55
✓ Factory direct pricing
✓ MOQ 1 piece, ships 1–5 days
✓ Custom ball radii available
Full Dimensions
Technical Specifications
| Ball Radius (R) | 3.5 mm |
| Cutter Diameter (D1 h7) | 7 mm |
| Flute Length (L2) | 20 mm |
| Shank Diameter (D2 h6) | 8 mm |
| Overall Length (L1) | 60 mm |
| Number of Flutes | 2 |
| End Geometry | Ball Nose (Spherical) |
| Coating | TiSiN Titanium Silicon Nitride |
| Max Material Hardness | HRC55 |
| Reach Category | Standard (D2/L1 = 0.133) |
| 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 |
TiSiN · 2 Flute · HRC55
Ball R
3.5mm
D1 h7
7mm
L2
20mm
D2 h6
8mm
L1
60mm
Reach
Standard
Where This Tool Excels
R3.5mm TiSiN 2F — Recommended Applications
- ▸Large mould cavity semi-finish and finish passes
- ▸Automotive stamping die contouring
- ▸Compound curve aerospace structural parts
- ▸Forging die cavity profiling
Machining Tip: At R3.5mm, balance step-over and feed rate to manage thermal load in HRC55 hardened steel. Recommended: 8–15% D1 step-over for semi-finish, 3–8% for finishing. Use trochoidal Z-level strategy to maintain constant chip load on curved surfaces.
3D Finishing Reference
Scallop Height vs Step-Over — R3.5mm
Residual scallop height (cusps) between adjacent tool paths, calculated for R3.5mm ball nose:
| Step-Over | Step-Over mm | Scallop Height (µm) | Typical Ra (µm) |
|---|---|---|---|
| 2% D1 | 0.14 | 0.7 | ≈ 0.14 |
| 5% D1 | 0.35 | 4.4 | ≈ 0.88 |
| 8% D1 | 0.56 | 11.2 | ≈ 2.24 |
| 10% D1 | 0.70 | 17.5 | ≈ 3.51 |
| 15% D1 | 1.05 | 39.6 | ≈ 7.92 |
| 20% D1 | 1.40 | 70.7 | ≈ 14.14 |
h = R − √(R² − (ae/2)²). Actual Ra depends on feed rate, chip load, and material.
ISO PISO MISO K
Coating Performance
TiSiN — Why It Works for Ball-End Machining
- ▸TiSiN hardness > 3,500 HV — superior to TiAlN on ball-end profiles
- ▸Low friction reduces heat at ball-tip during 3D contouring
- ▸Suitable for dry, MQL, or flood coolant environments
- ▸2-flute: maximum chip clearance for deep cavity ramp entry
Related Ball Nose Variants
Same Size in Other Coatings
Order R3.5mm 2-Flute TiSiN 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.
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