CNC Brass Milling and Turning Part from Yixing

Brass CNC Machining Services - Custom Brass Parts

Brass is a processed metal commonly used in various industries due to its various ideal properties. This alloy contains copper, zinc, and other metallic elements such as magnesium, iron, and lead, all of which help improve its machining performance.

1. Strong machining ability

Brass is one of the metals with high machinability, which is due to the presence of lead in its composition. Brass has processing characteristics such as high feed rate, good ductility, and strong flexibility.

3. Ductility

Brass has extremely high ductility due to its copper content. However, the ductility of this metal is even better than copper. The high ductility of brass makes it the preferred choice for machining projects, as machinists can easily machine this metal into different shapes.

2. Corrosion resistance

One of the characteristics that brass is suitable for machining is its corrosion resistance, which is one of the reasons for the long service life of brass components. In addition, it also makes parts made of brass material suitable for use in liquid environments, but their corrosion resistance depends on the amount of components such as iron and aluminum.

4. Strength and hardness

Brass is not only easy to machine, but also has high strength. Although its strength is not as strong as steel, it is also quite durable.

5. Aesthetics

One of the main considerations for mechanical processing is the aesthetics

of the finished product. Brass has a bright golden color, and its natural surface

means that brass machined parts can be used without the need for additional surface treatment.

Surface Treatment for CNC Brass Machining 

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1. Machining surface

Due to the bright natural golden surface of brass, the machined finished brass parts are also relatively beautiful. However, in most cases, the focus of using machined surfaces directly is usually on their functionality rather than aesthetics.
2. Polishing

This includes using grinding wheels and grinding discs to polish the surface of customized brass parts, where the abrasive on the grinding disc helps to remove impurities and make the surface smoother.
3. Electroplating

This surface treatment method uses electroplating to combine molecules of another metal onto the surface of brass parts. The metals used for electroplating include aluminum, stainless steel, etc. The surface after electroplating is usually bright or smooth.
4. Honing

This surface treatment method involves using a grinding stone to polish the surface of the finished product, which can form intersecting patterns on the surface of brass parts.

Brass Material Grade

1. Brass C360
Mechanists usually refer to this alloy as free machining brass, which is the most commonly used brass grade in machining and is known for its high machinability and tensile strength. Its high machinability is attributed to its approximately 3% lead content in its composition. Manufacturers use it to process brass custom parts, such as electrical equipment, connectors, or screws.

Advantages: Easy to process; Corrosion resistance; Good tensile strength.
Disadvantage: If used for medical purposes, lead content may cause problems. Easily affected by acid.

2. Brass C230
Mechanists refer to this grade of brass as red brass or Nordic brass, which has moderate strength and good rust resistance. C230 is also popular due to its weather resistance and resistance to zinc removal. It is suitable for customized parts such as rotor rods, J-shaped bends, etc.

Advantages: Anti zinc removal, moderate tensile strength, and corrosion resistance.
Disadvantage: It may not be able to withstand corrosion in harsh environments.

3. Brass C220
Mechanists refer to this alloy as commercial bronze. Although it bears a similar name to bronze, its composition still belongs to brass alloy due to its high copper content. It has good machining performance, strength, and ductility.

Advantages: Excellent corrosion resistance; Good machining performance; High ductility and strength.
Disadvantage: Exposure to harsh environments may require additional annealing treatment.

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Shanghai Yixing Machining

Shanghai Yixing is a machining factory in China with more than 15 years experience. We have manufactured and shipped millions of machining, turning and milling metal and plastic parts to USA, Canada, Germany, UK, Australia etc.

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