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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.
Aplikasi: Precision components, fittings, valves, and various decorative parts.

C385 (Architectural Bronze):

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

C464 (Naval Brass):

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

Aluminum Alloys

6061 aluminium:

Properties: Excellent machinability, good strength, rintangan kakisan yang baik, and good weldability.
Aplikasi: Structural components, bahagian automotif, and aerospace applications.

7075 aluminium:

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

2024 aluminium:

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

5083 aluminium:

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

5052 aluminium:

Properties: Good formability, rintangan kakisan yang baik, and moderate strength.
Aplikasi: 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, aluminum, stainless steel etc.. Any surface treatments can be machined as you required, please feel free to contact us when you need.