หัวกัดที่มีความแม่นยํา,เครื่องมือตัดสําหรับเครื่องจักรกลซีเอ็นซีทุกวัสดุ
Introduction
Choosing the right end mill is key for machining aluminum. This article explores if 4-flute end mills are a good choice, covering their pros, cons, and best uses to help you improve efficiency and finish.
What is a 4-Flute End Mill?
A 4-flute end mill has four cutting edges. It’s used for milling, slotting, and contouring. It offers higher removal rates and better stability than tools with fewer flutes. Common coatings like TiAlN reduce aluminum adhesion.
Key Challenges in Aluminum Machining
Aluminum is soft and sticky, leading to built-up edge on tools. Its chips are long and can clog flutes. Heat builds up quickly due to high conductivity. Alloys with silicon are abrasive and wear tools faster.
Advantages
Higher machining efficiency and feed rates.
Better surface finish with less vibration.
Good rigidity for stable cutting.
Improved chip control with right helix angle.
Longer life due to even wear distribution.
Limitations
Narrow flutes can cause chip clogging.
Higher cutting force risks part deflection.
Aluminum may stick to the cutting edge.
Not ideal for deep slots or heavy roughing.
Wears faster in high-silicon aluminum.
When to Use?
✅ Use for finishing, semi-finishing, and side milling where finish and precision matter.
⚠️ Avoid for deep slots, heavy cuts, or unstable setups.
🔧 Use high helix tools, coatings, and high-pressure coolant.
Alternative End Mills
2-ขลุ่ย: Best for roughing and deep slots.
3-ขลุ่ย: Balanced choice for roughing and finishing.
เครื่องมือพิเศษ: Designed for high-speed aluminum machining.
Conclusion
4-flute end mills work well for aluminum finishing, offering good surface quality and speed. But for roughing or deep cuts, prefer 2 or 3-flute end mills for better chip removal. Always match the tool to your specific job.