While there are numerous aluminum alloys available, several stand out as particularly popular for CNC machining due to their balance of properties and machinability. Here are some of the most common:
- 6061:This is perhaps the most widely used aluminum alloy for CNC machining. It offers a good combination of strength, machinability, and corrosion resistance. It's versatile and suitable for a wide range of applications.
- 7075: Known for its exceptional strength-to-weight ratio, 7075 is often used in demanding applications like aerospace and defense. However, it can be more challenging to machine than other alloys.
- 2024: Offers high strength but can be more difficult to machine than other alloys. It's often used in applications where weight reduction and high strength are critical.
- 6262:Known for its excellent formability and weldability.
- MIC 6:A cast aluminum alloy with good machinability and strength.
The optimal alloy for your CNC milling project depends on specific requirements such as strength, weight, corrosion resistance, and cost.