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Aluminum CNC Machining Services: High-Quality Parts from China Suppliers and Factory Experts

Aluminum is a widely used metal in CNC machining, celebrated for its low density, high strength, exceptional hardness, and strong resistance to heat and corrosion, along with excellent electrical conductivity. This makes aluminum an ideal choice for various industries, particularly in aerospace, medical, and automotive sectors. Popular aluminum grades such as 6061-T651, 7075-T651, and 2024-T351 provide an excellent balance of performance and cost-effectiveness, As a leading aluminum CNC machining factory in China with over a decade of experience, we specialize in producing high-quality aluminum parts with tight tolerances. Our comprehensive manufacturing capabilities include CNC milling and turning, multi-axis machining, and turn-mill compound machining. Leveraging intelligent production management and a robust supply chain, we deliver efficient and cost-effective solutions, from rapid prototyping to small and medium-volume production. As trusted suppliers, we are committed to meeting your aluminum parts manufacturing needs with precision and reliability
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    Product Details

    Common Aluminum Alloy Material Library

    We maintain a complete inventory of aerospace-grade and commercial-grade aluminum alloy materials to ensure the best performance and cost suitability:

    6061-T6

    The most versatile structural alloy, offering excellent machinability, weldability, and corrosion resistance. Suitable for most mechanical components, tooling fixtures, and enclosures.

    7075-T6

    An ultra-high-strength aluminum alloy with strength comparable to many steels. An ideal choice for aerospace, high-performance sporting goods, and critical load-bearing structures.

    5052-H32

    Offers excellent corrosion resistance (especially in marine environments) and formability. Commonly used for ship and vehicle trim, and electronic enclosures.

    2024-T3/T4

    Provides good fatigue strength and strength-to-weight ratio. Widely used in aircraft structural components, truck wheels, and other high-strength applications.

    MIC-6 / Cast Aluminum Tooling Plate

    A precision-ground, pre-hardened plate with stress-free internal structure, ideal for precision substrates, fixtures, and molds.

    Frequently Asked Questions

    What makes 6061-T6 the most versatile aluminum alloy?
    6061-T6 is highly versatile because it balances excellent machinability, weldability, and corrosion resistance, making it suitable for a wide range of structural, mechanical, and enclosure applications.
    When should I choose 7075-T6 over 6061-T6?
    You should choose 7075-T6 when maximum strength is required. It offers ultra-high-strength comparable to steel, making it ideal for aerospace and critical load-bearing applications where weight reduction is essential but high stress is present.
    Why is 5052-H32 preferred for marine environments?
    5052-H32 offers exceptional resistance to saltwater corrosion and excellent formability, making it the top choice for marine applications, vehicle trim, and outdoor electronic enclosures.
    What are the primary applications of 2024-T3/T4?
    Due to its high fatigue strength and excellent strength-to-weight ratio, 2024-T3/T4 is primarily used in aircraft structural components, truck wheels, and high-strength load-bearing parts.
    What makes MIC-6 Cast Aluminum Tooling Plate unique?
    MIC-6 is unique because it is a precision-ground, pre-hardened plate with a stress-free internal structure. This prevents distortion during high-speed machining, making it perfect for precision fixtures, substrates, and molds.

    Finishes and Post-Processing Options

    The zinc alloy substrate is highly suitable for various surface treatments to enhance decoration, protection, or functionality:

    Electroplating: Such as chrome, nickel, gold, or silver plating, providing a highly decorative appearance, excellent wear and corrosion resistance. This is the most common choice.

    • Passivation or Chromate Conversion Coating:

    • Powder Coating:

    • Painting:

    • Physical Vapor Deposition (PVD):

    Design and Machining Considerations

    • Process Selection:

    • Design Considerations:

    • Material Selection:

      Zamak 3 and 5 are suitable for the vast majority of general-purpose parts requiring good appearance and strength; ZA-8 is better for wear and bearing applications; for making rapid tooling, choose specialized alloys like Kirksite.

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