3-Flute End Mills for Aluminum
3 Flute Extra Long Reach End Mills for Aluminum (Up to 200mm) | Wholesale Factory
Direct China factory for 3-flute extra long reach carbide end mills. Specialized for deep cavity aluminum milling (6061/7075). ISO certified, free samples, and wholesale discounts. Reach up to 200mm with zero chatter. Inquire now!
3 Flute Extra Long Reach Carbide End Mill for Aluminum | China Factory Direct
🚀 High-Performance Deep Cavity Machining Solutions
The 3 Flute Tungsten Carbide End Mill for Aluminum is the "Goldilocks" tool for non-ferrous machining, bridging the gap between 2-flute and 4-flute designs.
Our Extra-Long Series is specifically engineered with a reinforced core diameter to minimize deflection and vibration during deep-reach aluminum milling, ensuring a superior surface finish even at extended lengths up to 200mm.
Why Choose Our 3-Flute Extra Long Series?
- Vibration Reduction: The 3-flute geometry provides superior core strength compared to 2-flute mills, significantly reducing chatter and vibration during high-speed machining.
- Superior Surface Finish: With more cutting edges per revolution, it delivers a finer wall and floor finish, often eliminating the need for a separate finishing pass.
- Deep Pocketing & Slotting: Our Extra Long Reach (up to 200mm) allows for deep cavity machining where standard tools cannot reach, maintaining rigidity without rubbing.
- Efficient Chip Evacuation: Large, mirror-polished gullets ensure rapid chip removal, preventing re-cutting or clogging even in deep slots.
Optimized for High-Grade Aluminum Alloys:
Our 3-flute series is specifically calibrated for high-speed milling in Aluminum 6061-T6, 7075-T6, and 2000 series alloys. The 45° helix angle is optimized to handle the high ductility of these materials, ensuring that chips are sliced cleanly rather than torn.
🛠️ Product Features
- Premium Material: Ultra-Fine Micro Grain Tungsten Carbide (HRC55) for extreme wear resistance.
- Uncoated & Mirror Polished: Specialized high-polish flutes minimize friction and prevent Built-Up Edge (BUE)—the common issue of aluminum sticking to the tool.
- High Helix Angle: 45° / 55° design for smooth shearing action and efficient vertical chip ejection.
- Precision Shank: Standard straight shank with h6 tolerance for high-precision collets and shrink-fit holders.
📊 Technical Specifications
As a leading carbide end mill factory in China, we provide specialized extra long reach tools for precision mold making and aerospace components.
Cutter Diameter (D) | Shank Diameter (d) | Flute Length (L2) | Overall Length (L1) | Series Type |
|---|---|---|---|---|
1.0 - 2.0 mm | 4 mm | 1 - 6 mm | 50 mm | Standard |
3.0 - 5.0 mm | 3 / 4 / 6 mm | 3 - 12 mm | 50 mm | Standard |
6.0 - 12.0 mm | 6 - 12 mm | 6 - 36 mm | 50 / 60 / 75 mm | Standard |
1.0 - 5.0 mm | 3 / 4 / 6 mm | 3 - 30 mm | 75 / 100 mm | Long Reach |
6.0 - 16.0 mm | 6 - 16 mm | 25 - 45 mm | 75 / 100 mm | Long Reach |
6.0 - 16.0 mm | 6 - 16 mm | 45 - 70 mm | 150 mm | Extra Long |
16.0 mm | 16 mm | 90 mm | 200 mm | Extra Extra Long |
💡 Custom Service: Custom neck diameters, reach lengths, and OAL are available. Contact our engineering team for OEM/ODM services. 💡 Pro Engineering Tip: Managing L/D Ratio：When using our Extra Extra Long (200mm)series, the Length-to-Diameter (L/D) ratio can exceed 12:1. To maintain a T.I.R < 0.005mm, we recommend using high-precision hydraulic or shrink-fit chucks. This setup maximizes the vibration-dampening properties of our reinforced carbide core.
📈 Recommended Cutting Parameters (Aluminum Alloys)
Note: 3-Flute mills allow for higher feed rates. Adjust based on machine rigidity and cooling.
Diameter (D) | RPM (min⁻¹) | Feed (mm/min) | Slotting (ap) | Side Milling (ae) |
|---|---|---|---|---|
3.0 mm | 15,000 - 30,000 | 600 - 1,500 | 0.2D | 0.1D |
6.0 mm | 10,000 - 18,000 | 1,500 - 3,000 | 0.5D | 0.2D |
10.0 mm | 8,000 - 12,000 | 2,500 - 4,500 | 1.0D | 0.3D |
16.0 mm | 5,000 - 8,000 | 3,000 - 5,000 | 1.0D | 0.5D |
- Coolant: Flood coolant is strongly recommended to flush chips.
- Long Reach Note: For tools with OAL > 100mm, reduce RPM and Feed by 30-50% to ensure stability.
💰 B2B Promotion & Factory Policy
- Free Samples: Available for quality testing (client covers shipping).
- First Order Coupon: **USD 500).
- Bulk Discount: 2% - 5% OFF for wholesale orders (> USD $5,000).
Looking for Hardened Steel Solutions?
If your project involves materials harder than HRC50, explore our [HRC70 Square Carbide End Mill Series]—engineered for extreme heat resistance and precision in die steel.
❓ FAQ
Q1: Why choose 3-flute over 2-flute for Aluminum?
A: 3-flute offers a stronger core and better balance, allowing for higher feed rates and smoother finishes in peripheral milling while still maintaining excellent chip clearance.
Q2: Are these tools coated?
A: Our standard is Uncoated High Polish to prevent aluminum sticking. However, we offer DLC (Diamond-Like Carbon) or ZrN coatings for abrasive high-silicon aluminum alloys upon request.
Q3: Can I use 200mm long end mills at full speed?
A: For Extra Extra Long tools, we recommend starting at 50% of standard speed/feed to identify the vibration limit of your setup, then ramping up.