Engineered for high-efficiency stainless steel milling — combining ultra-fine grain substrate, advanced AlCrN coating, and vibration-dampening geometry.
Designed for demanding industrial applications, this four-flute solid carbide end mill delivers exceptional performance in dynamic roughing and finishing of austenitic and duplex stainless steels (e.g., AISI 304, 316, 2205). Its proprietary microstructure—ultra-fine grain tungsten carbide (≤0.6 µm) with 12% cobalt binder—provides superior hardness (HRA 93.5), transverse rupture strength (>4,200 MPa), and thermal shock resistance.
The Balzers AP™ (AlCrN) coating enables stable high-speed machining up to 1200°C, while the dual-core flute geometry (52% core rigidity / 70% chip space ratio) ensures optimal rigidity and uninterrupted chip evacuation—even under heavy feeds and deep radial engagements. This is not a general-purpose tool: it’s an engineered solution for Tier-1 aerospace, medical device, and energy sector suppliers seeking measurable cycle time reduction and extended tool life in challenging stainless environments.
WC-12%Co substrate with uniform grain distribution (<0.6 µm) — certified via SEM/EDS and ASTM B690-22. Delivers consistent edge retention and fracture resistance across batch and application.
Balzers AP™ (AlCrN) PVD coating — 2.8–3.2 µm thickness, HV0.05 ≥3,200, oxidation onset >1200°C. Reduces flank wear by 40% vs. standard TiAlN in wet stainless milling.
Asymmetric pitch (88°/92°) + optimized 8° rake / 45° helix + dual-core flute profile — validated via modal analysis and cutting force measurement (DIN ISO 13399). Lowers chatter amplitude by ≥62% at 8,000 rpm.
| Parameter | Value |
|---|---|
| Substrate Grade | WC-12%Co (ISO K10) |
| Grain Size | ≤0.6 µm (ASTM E112) |
| Hardness (HRA) | 93.5 ± 0.3 |
| Coating Type | Balzers AP™ (AlCrN) |
| Coating Thickness | 2.9 ± 0.2 µm |
| Flute Count | 4 |
| Helix Angle | 45° |
| Rake Angle | +8° |
| Pitch Distribution | 88° / 92° (asymmetric) |
| Recommended Application | Stainless steel (AISI 304/316/2205), Inconel® 718, titanium alloys (Ti-6Al-4V) |
Primary validation covers austenitic (AISI 304, 316), duplex (UNS S32205/S32750), and precipitation-hardened (17-4PH) grades. Secondary testing confirms strong performance in Inconel® 718 and Ti-6Al-4V under controlled coolant conditions.
The AlCrN coating provides inherent thermal protection, but we recommend minimum quantity lubrication (MQL) or high-pressure coolant (70 bar+) for optimal surface integrity and tool life in stainless steel. Dry operation is feasible only in light finishing passes (<0.1 mm DOC).
Yes. Our global technical team offers free cutting parameter optimization, toolpath recommendations, and on-site trials for qualified OEMs and Tier-1 suppliers. Support includes full traceability documentation per ISO 9001:2015 and AS9100D.
Request a tailored cutting trial, technical datasheet, or direct consultation with our application engineers.
