CNC Machining For Aluminum Parts

Because Of Its Unique Physical And Mechanical Properties, Aluminum Has Become One Of The Common And Popular Machining Materials In CNC Machining

Material description

Aluminum is a popular choice for machining due to its low density, good mechanical properties, high thermal and electrical conductivity, and resistance to corrosion. Aluminum alloys, such as 6061-T651, 7075-T651, and 2024-T351, are commonly used in CNC machining because they offer a good balance of strength, machinability, and cost.

Advantages of aluminum

  • Excellent machinability
  • High strength and hardness
  • Heat tolerance and corrosion resistance
  • Electrical conductivity
  • Good thermal conductivity
CNC Machining For Aluminum Parts

Wide application of aluminum

Because of these properties, aluminum is a broadly used metal in many industries, including automotive, defense, aerospace, transportation, construction, packaging, electronics, consumer goods and more.

  • Automotive parts (light-weighting provides high strength-to-weight ratio)
  • Housing, brackets, and other components for aerospace use that must support heavy load capacities but be light weight
  • Fixtures, calipers, and a variety of other parts for industrial equipment
  • Enclosures, panels, consoles, knobs, housing, and other applications for consumer and computer electronics

Aluminum model classification

machmaster offers a variety of aluminum alloys for you to choose from

Aluminum 7075 T651 and T7: Benefits include high strength, hardness, low weight, corrosion resistance, and high heat tolerance.

Aluminum 2024 T3: This high-strength alloy offers a high strength-to-weight ratio and high corrosion resistance.

Aluminum 6061 T651: Though not as strong as other types of Aluminum, this alloy offers the best corrosion resistance and appearance after anodizing.

Finishing Options for CNC Machined Aluminum Parts

The surface treatment of aluminum after processing is diverse, aiming to improve its appearance, enhance corrosion resistance, improve wear resistance, beautify decorative effects, or meet specific functional requirements.



A dense aluminum oxide film is formed on the aluminum surface through electrolysis to enhance its corrosion resistance and wear resistance. It can also be dyed to give different colors, such as transparent, black, gold, red, etc.

Electrophoretic coating

Surface Treatment cataphoresis

It is a liquid coating method that uses the action of an electric field to evenly deposit paint particles on the surface of aluminum to form a dense paint film, improving the corrosion resistance and aesthetics of the surface.

Powder Coating

Powder Coating

The thermosetting or thermoplastic powder coating is electrostatically adsorbed on the aluminum surface, and then solidified in a baking oven to form a strong coating film, which has excellent weather resistance, chemical resistance and rich colors.


Surface treatment Polishing

Mechanical polishing, chemical polishing and electrochemical polishing, etc., remove the oxide layer and microscopic defects on the aluminum surface through physical or chemical effects to achieve a mirror effect on the surface.


Surface treatment Sand Blasting

By hitting the aluminum surface by high -speed spraying sand, removing oxide skin, welding residue, etc., improve the surface roughness, which is conducive to the attachment of subsequent coating, and can also be used to form a specific appearance effect.



Use the belt or brush to produce directed, delicate silk or wavy texture on the surface of the aluminum to enhance the decorative.


Surface treatment Electroplating

Placing an aluminum surface to put a layer of other metals, such as zinc, nickel, chromium, copper, etc., to improve corrosion resistance, abrasion resistance or change of appearance.

Laser carving

Laser carving

The use of laser carving technology to form text, patterns or logos on the aluminum surface, which is permanent and aesthetic.

CNC machined aluminum Parts Gallery

Get A Quote