20mm 4-Flute TiSiN Solid Carbide Ball Nose End Millfor HRC55 3D Contouring & Mould Work

The 4-flute TiSiN ball nose end mill is engineered for finishing passes and semi-finish Z-level contouring in steel and stainless steel up to HRC55. More cutting edges reduce per-tooth chip load, enabling higher feed rates while maintaining lower surface scallop height (Ra). TiSiN coating withstands the elevated temperatures of continuous 3D contouring on hardened mould surfaces without edge chipping.

R10mm BallD1 20mmL2 70mmD2 20mmOAL 150mm4 FlutesTiSiNHRC55Standard ReachMOQ 1 pc

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Cena referencyjna

1874,20 zł

Cena ref. fabryki (PLN)

wg kosztu pręta na 2026-03-31. Wycena końcowa może się różnić.

TiSiN · 4 Flute · HRC55

R10mm 4F TiSiN Ball Nose EM

L2 70mm · D2 20mm · OAL 150mm

Standard Reach · HRC55

✓ Factory direct pricing

✓ MOQ 1 piece, ships 1–5 days

✓ Custom ball radii available

Technical Specifications

Ball Radius (R)10 mm
Cutter Diameter (D1 h7)20 mm
Flute Length (L2)70 mm
Shank Diameter (D2 h6)20 mm
Overall Length (L1)150 mm
Number of Flutes4
End GeometryBall Nose (Spherical)
CoatingTiSiN Titanium Silicon Nitride
Max Material HardnessHRC55
Reach CategoryStandard (L1/D1 = 7.5×)
SubstrateK10/K20 Ultra-Fine Grain Carbide
Shank Toleranceh6
MOQ1 piece
Lead Time (standard)1–5 business days
Lead Time (custom)5–15 business days

TiSiN · 4 Flute · HRC55

R10mm 4-flute TiSiN solid carbide ball nose end mill — L2=70mm OAL=150mm
Ball R
10mm
D1 h7
20mm
L2
70mm
D2 h6
20mm
L1
150mm
Reach
Standard

R10mm TiSiN 4F — Recommended Applications

  • Heavy mould base 3D contouring
  • Large stamping and forming die profiling
  • Marine propeller and impeller blade finishing
  • Power generation turbine component contouring
Machining Tip: R10mm generates significant cutting forces in HRC55 hardened steel. Verify spindle power ≥ 10 kW for sustained 3D contouring at full engagement. Use high-pressure coolant or MQL for thermal management. Preferred tool path: scallop finishing (constant cusps) over parallel raster.

Scallop Height vs Step-Over — R10mm

Residual scallop height (cusps) between adjacent tool paths, calculated for R10mm ball nose:

Step-OverStep-Over mmScallop Height (µm)Typical Ra (µm)
2% D10.402.00.40
5% D11.0012.52.50
8% D11.6032.16.41
10% D12.0050.110.03
15% D13.00113.122.63
20% D14.00202.040.41

h = R − √(R² − (ae/2)²). Actual Ra depends on feed rate, chip load, and material.

ISO PISO MISO K

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
  • 4-flute: lower scallop height per pass for finishing operations

Same Size in Other Coatings

R10mm TiSiN · 4 Flute · HRC55 — Other Flute Lengths

Order R10mm 4-Flute TiSiN Ball Nose Today

Factory direct. MOQ 1 piece. Pricing confirmed within 4 hours.