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What Types of Brass and Aluminum are Suitable for CNC Turning and Milling?

When selecting brass and aluminum for CNC turning and milling, it’s important to consider the specific properties of each alloy and how they align with your project requirements, such as machinability, strength, corrosion resistance, and intended application. Here are some commonly used brass and aluminum alloys for CNC machining:

Brass Alloys

C360 (Free-Cutting Brass):

Properties: High machinability, good strength, corrosion resistance, and excellent wear resistance.
应用领域: Precision components, fittings, 阀门, and various decorative parts.

C385 (Architectural Bronze):

Properties: Good machinability, excellent corrosion resistance, and good mechanical properties.
应用领域: Hardware, architectural applications, and decorative components.

C464 (Naval Brass):

Properties: Good strength, excellent corrosion resistance (especially in marine environments), and good wear resistance.
应用领域: Marine hardware, propeller shafts, and other maritime components.

Aluminum Alloys

6061 铝:

Properties: Excellent machinability, good strength, 良好的耐腐蚀性, and good weldability.
应用领域: Structural components, automotive parts, and aerospace applications.

7075 铝:

Properties: High strength, good fatigue resistance, and good machinability, but lower corrosion resistance compared to 6061.
应用领域: Aerospace and military applications, high-stress components.

2024 铝:

Properties: High strength, good fatigue resistance, and good machinability, but poor corrosion resistance.
应用领域: Aerospace structures, military applications, and high-performance components.

5083 铝:

Properties: Excellent corrosion resistance, good weldability, and moderate strength.
应用领域: Marine applications, pressure vessels, and transportation equipment.

5052 铝:

Properties: Good formability, 良好的耐腐蚀性, and moderate strength.
应用领域: Sheet metal work, marine applications, and transportation industry.

Selection Criteria
When choosing the right alloy, consider the following factors:

Machinability: Ease of cutting, shaping, and drilling.
Strength: Required mechanical strength for the application.
Corrosion Resistance: Need for resistance to environmental factors such as moisture, chemicals, or saltwater.
Finish Quality: Desired surface finish and whether post-machining treatments are necessary.
Cost: Budget constraints and material cost.
These alloys are commonly used in CNC turning and milling due to their favorable properties for machining and the wide range of applications they can serve.

SUN-YEE can providing you CNC turning and milling services with metal materials including brass, 铝, stainless steel etc.. Any surface treatments can be machined as you required, please feel free to contact us when you need.