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Aluminum CNC Machining Services from Leading China Suppliers | Expert Factory with 10+ Years Experience

Aluminum is a widely utilized metal in CNC machining due to its low density, high strength, and exceptional hardness. Known for its heat resistance, corrosion resistance, and excellent electrical conductivity, aluminum is favored across various industries. Notably, alloys such as 6061-T651, 7075-T651, and 2024-T351 are particularly sought after in the aerospace, medical, and automotive sectors, offering a remarkable balance of performance at a low cost. As a leading CNC machining manufacturer in China, we bring over 10 years of industry experience to meet your needs, Our factory specializes in the comprehensive manufacturing of aluminum alloy parts, focusing on CNC milling and turning. We excel in multi-axis machining and turn-mill compound machining, ensuring precision and quality. With our intelligent production management and robust supply chain networks, we deliver efficient and cost-effective solutions, from rapid prototyping to small and medium-volume production. Partner with us, your trusted suppliers for high-quality aluminum CNC machining solutions from China
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    Product Details

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

    6061-T6 Most Versatile

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

    7075-T6 Ultra High Strength

    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 Marine Grade

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

    2024-T3/T4 Aerospace

    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 Precision

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

    Frequently Asked Questions
    Q What is the difference between 6061-T6 and 7075-T6 aluminum alloys?
    6061-T6 is a general-purpose alloy known for its excellent machinability, weldability, and corrosion resistance, making it suitable for a wide range of applications. 7075-T6 offers significantly higher strength — comparable to many steels — and is preferred for aerospace and high-performance applications where maximum strength-to-weight ratio is critical.
    Q Which aluminum alloy is best for marine or outdoor environments?
    5052-H32 is the top choice for marine and outdoor environments due to its outstanding corrosion resistance, particularly against saltwater and moisture. It is widely used in shipbuilding, vehicle trim, and outdoor enclosures.
    Q What makes MIC-6 Cast Aluminum Tooling Plate suitable for precision applications?
    MIC-6 is precision-ground to tight flatness tolerances and has a stress-free internal structure achieved through a special casting process. This eliminates warping or distortion during machining, making it ideal for precision fixtures, substrates, and molds where dimensional stability is essential.
    Q Is 2024-T3/T4 aluminum alloy weldable?
    2024-T3/T4 has limited weldability due to its high copper content, which can lead to cracking in the heat-affected zone during welding. It is primarily used in applications that rely on mechanical fastening. Its key advantages are excellent fatigue resistance and a high strength-to-weight ratio, making it a preferred choice for aircraft structures.
    Q Can I use 6061-T6 for aerospace applications?
    Yes, 6061-T6 is used in certain aerospace applications, particularly for non-critical structural components, enclosures, and fittings where its excellent machinability and corrosion resistance are beneficial. However, for primary load-bearing aerospace structures requiring maximum strength, 7075-T6 or 2024-T3/T4 are typically preferred.
    Q How do I choose the right aluminum alloy for my project?
    Choosing the right alloy depends on your specific requirements: consider the mechanical strength needed, the operating environment (e.g., marine, aerospace, general industrial), machinability and fabrication method, weldability needs, and budget. For most general-purpose parts, 6061-T6 is a reliable starting point. For high-strength or aerospace use, consider 7075-T6 or 2024-T3/T4. For corrosion-critical environments, 5052-H32 is recommended, and for precision tooling, MIC-6 is the ideal choice.

    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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