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Aluminum Used in Precision Machining Service

Aluminum alloys are widely utilized in CNC machining due to their favorable characteristics for manufacturing processes. Here are key points about the common aluminum alloys for machining:

6061 Aluminum Alloy:

  • Known for its excellent strength-to-weight ratio, 6061 is a versatile alloy with good machinability. It is often chosen for parts requiring high strength and corrosion resistance.

7075 Aluminum Alloy:

  • Recognized for its high strength, 7075 is commonly used in aerospace applications. While it has lower machinability compared to 6061, it offers superior strength properties.

5052 Aluminum Alloy:

  • Notable for its formability and corrosion resistance, 5052 is frequently chosen for intricate shapes and parts requiring good weldability.

6063 Aluminum Alloy:

  • Known for its excellent extrudability, 6063 is often used for profiles and complex shapes. It offers a good surface finish and is suitable for decorative applications.

2024 Aluminum Alloy:

  • Valued for its high strength and fatigue resistance, 2024 is commonly utilized in aerospace applications where strength is crucial.

5083 Aluminum Alloy:

  • Recognized for its exceptional corrosion resistance, 5083 is commonly used in marine applications. It also possesses good weldability.

2011 Aluminum Alloy:

  • Known for its excellent machining characteristics, 2011 is a free-machining alloy often chosen for intricate parts requiring tight tolerances.

6060 Aluminum Alloy:

  • Similar to 6063, 6060 is known for its good extrudability and is often used for architectural and structural applications.

6082 Aluminum Alloy:

  • Offering good strength and corrosion resistance, 6082 is commonly used in structural applications and exhibits good machinability.

2026 Aluminum Alloy:

  • Recognized for its high strength and corrosion resistance, 2026 is often used in aerospace and marine applications.

In CNC industrial machining, the choice of aluminum alloy depends on specific application requirements, such as strength, corrosion resistance, machinability, and weight considerations. The versatility of aluminum alloys makes them a preferred material for a wide range of CNC-machined components across various industries.

Aluminum CNC Service

We specialize in delivering precision-engineered aluminum components tailored to your specific requirements. Aluminum alloys offer unique properties, and our CNC machining service is designed to accommodate a wide range of them. From the popular 6061 to the high-strength 7075, we have the expertise to work with various aluminum alloys, providing you with versatile solutions for your specific project requirements.

Aluminum for CNC Milling


Aluminum is a widely favored material for CNC milling, offering a range of benefits that make it a popular choice for various applications. Here's why aluminum is often selected for CNC milling projects:

1. Machinability: Aluminum is known for its excellent machinability, making it well-suited for CNC milling processes. Its softer and more ductile nature allows for efficient cutting and milling operations, resulting in precise and smooth finishes on machined parts.

2. Lightweight: One of the primary advantages of aluminum is its lightweight nature. This characteristic is particularly beneficial in industries such as aerospace and automotive, where weight reduction is a critical factor for improved fuel efficiency and overall performance.

3. Corrosion Resistance: Aluminum possesses natural corrosion resistance, making it a durable choice for components exposed to various environmental conditions. This property ensures the longevity of machined parts, particularly in outdoor or harsh environments.

4. Thermal Conductivity: Aluminum boasts excellent thermal conductivity, facilitating efficient heat dissipation during machining. This characteristic helps prevent the buildup of heat, minimizing the risk of damage to tools and ensuring consistent machining performance.


In addition to the mentioned reasons, there are several other noteworthy aspects about CNC aluminum milling that contribute to its widespread use and popularity in manufacturing:

Rapid Prototyping:

CNC aluminum milling is ideal for rapid prototyping. The efficiency and precision of CNC machines allow for quick iterations and adjustments during the prototyping phase. This speed in development is crucial for industries where time-to-market is a critical factor.

Complex Geometries:

Aluminum's malleability and the precision of CNC milling machines enable the creation of intricate and complex geometries. This is particularly advantageous for industries like aerospace and automotive, where intricate designs are often a requirement.

High Surface Finish:

CNC aluminum milling can achieve high-quality surface finishes. The precision of the milling process ensures that machined aluminum parts have smooth surfaces, reducing the need for additional finishing processes in many cases.

Aluminum Gravity Casting


Aluminum gravity casting, also known as permanent mold casting, is a versatile and widely used casting process for creating aluminum components. This method involves pouring molten aluminum into a reusable metallic mold, allowing gravity to fill the mold cavity. Here are key aspects and advantages of aluminum gravity casting:

  • Mold Material:

The mold used in aluminum gravity casting is typically made of steel or iron, providing durability for repeated use. This distinguishes it from sand casting, where the mold is typically made of sand and is expendable.

  • Gravity-Fed Process:

As the name suggests, gravity plays a crucial role in this casting method. Molten aluminum is poured into the mold, and gravity assists in filling the mold cavity. This controlled filling process contributes to the creation of components with consistent dimensions.

  • Fine Surface Finish:

Aluminum gravity casting results in components with a fine surface finish. The metallic mold, combined with the controlled pouring of molten aluminum, helps achieve smooth surfaces on the cast parts, reducing the need for extensive finishing operations.

  • Tight Tolerances:

This casting method allows for the production of components with tight tolerances. The controlled filling process and the precision of the metallic mold contribute to the accuracy and consistency of the final cast aluminum parts.

  • High Strength:

The gravity-casting process leads to aluminum components with enhanced mechanical properties. The slower cooling rate compared to die casting results in a more refined grain structure, contributing to increased strength and durability of the cast parts.

  • Versatility in Shapes and Sizes:

Aluminum gravity casting is versatile in producing a variety of shapes and sizes. The reusable metallic molds can be designed to accommodate complex geometries, making them suitable for a broad range of applications across different industries.

Aluminum Stamping

Aluminum stamping is a versatile and efficient manufacturing process used to create precise and intricate aluminum components. This process involves the use of stamping dies to shape and form flat sheets or coils of aluminum into desired configurations. Here are key aspects and advantages of aluminum stamping:


Material Flexibility:

Aluminum stamping works well with various aluminum alloys, providing flexibility in material selection. This versatility allows manufacturers to choose alloys that best suit the specific requirements of the application, balancing factors such as strength, corrosion resistance, and weight.

High Precision:

Stamping allows for high precision in the production of aluminum components. The use of carefully designed stamping dies ensures consistent and accurate shaping, resulting in parts with tight tolerances and intricate details.

Cost-Effective for High Volumes:

Aluminum stamping is a cost-effective solution, particularly for high-volume production. The process is highly automated, enabling rapid and efficient production, which leads to reduced per-unit costs for large quantities of stamped aluminum components.

Quick Production Cycle:

Stamping processes, including progressive and transfer stamping, are known for their quick production cycles. The ability to rapidly stamp out parts contributes to faster lead times, making it suitable for applications where time-to-market is crucial.

Complex Geometries:

Stamping allows for the production of components with complex geometries and intricate shapes. The use of progressive dies, which perform multiple operations in a single pass, enhances the ability to create sophisticated aluminum parts with reduced secondary operations.

Aluminum Spinning

Aluminum spinning, also known as metal spinning or spin forming, is a metalworking process that involves the rotation of a flat metal disc (usually made of aluminum) at high speeds on a spinning lathe. The metal is shaped and formed by the application of pressure and tooling, resulting in a variety of cylindrical or conical components. Here are key aspects and advantages of aluminum spinning:


Forming Complex Shapes:

Aluminum spinning allows for the creation of complex shapes with precision. The rotation of the metal disc and the application of forming tools enable the production of intricate cylindrical or conical parts, making it a versatile process for various applications.

Seamless and Uniform Parts:

Aluminum spinning produces seamless and uniform parts, minimizing the need for additional welding or joining processes. The rotational symmetry of the components ensures consistent thickness and eliminates potential weak points in the structure.

Quick Setup and Production:

Aluminum spinning offers quick setup times, making it a suitable choice for rapid prototyping and production. The simplicity of the process allows for efficient tool changes and adjustments, contributing to shorter lead times.

Design Flexibility:

Design flexibility is a key advantage of aluminum spinning. The process accommodates a wide range of sizes and shapes, and adjustments can be easily made to achieve specific design requirements. This flexibility is particularly beneficial for customized or one-of-a-kind components.

Bending Aluminum Sheet

Bending aluminum sheets is a common and versatile metalworking process used to create curved or angled shapes from flat aluminum sheets. This process is widely employed in various industries for applications ranging from construction to automotive. Here are key aspects and considerations when bending aluminum sheets:


Material Selection:

The choice of aluminum alloy is crucial when bending sheets. Different alloys exhibit varying degrees of flexibility and strength. Common alloys for bending include 3003, 5052, and 6061. The selection depends on the specific requirements of the application.

Thickness Considerations:

The thickness of the aluminum sheet influences the ease of bending. Thicker sheets may require additional force and specialized equipment for bending. Understanding the material's mechanical properties is essential for determining the bending capabilities based on thickness.

Bending Methods:

There are various methods for bending aluminum sheets, each suitable for specific applications. The most common methods include:

  • Press Brake Bending: Utilizing a press brake machine with specific dies to achieve precise bends.

  • Roll Bending: Involves passing the sheet through three rollers to create curved sections.

  • Hot Bending: Heating the aluminum sheet before bending to enhance malleability.

Bend Radius:

The bend radius refers to the minimum radius that can be achieved without causing cracks or other defects in the aluminum sheet. It is essential to adhere to recommended bend radii for the chosen alloy and thickness to ensure structural integrity.

Tooling and Dies:

The use of proper tooling and dies is critical for achieving accurate and consistent bends. The selection of tooling depends on the desired bend angle, material thickness, and alloy. Custom dies may be necessary for specific applications.

Welding Sheet Aluminum

Welding sheet aluminum is a common process used to join aluminum sheets together, creating strong and durable connections. There are various welding methods suitable for aluminum, each with its advantages and considerations. Here are key aspects to consider when welding sheet aluminum:


Aluminum Alloys:

Aluminum comes in different alloys, and each alloy may have varying welding characteristics. Common alloys for sheet aluminum include 1XXX, 3XXX, 5XXX, and 6XXX series. It's crucial to choose the appropriate filler material and welding technique based on the specific aluminum alloy being used.

Filler Material Selection:

Selecting the right filler material is essential for achieving a strong and reliable weld. 4043 and 5356 are commonly used filler alloys for welding sheet aluminum. The choice depends on factors such as the base material, application, and desired properties of the weld joint.

Welding Methods:

Several welding methods are suitable for sheet aluminum:

  • Gas Metal Arc Welding (GMAW/MIG): GMAW, or MIG welding, is commonly used for sheet aluminum. It provides good control over the welding process and is suitable for thin sheets.

  • Gas Tungsten Arc Welding (GTAW/TIG): TIG welding offers precise control and is ideal for thin aluminum sheets. It produces high-quality welds but requires more skill than MIG welding.

  • Resistance Spot Welding: This method is suitable for thin aluminum sheets and is commonly used in automotive applications.

  • Friction Stir Welding: A solid-state welding process suitable for aluminum, particularly for joining dissimilar alloys and achieving high-strength welds.

Base Metal Preparation:

Proper preparation of the aluminum sheets is crucial for successful welding. Ensure that the surfaces are clean and free from contaminants such as oxides and oils. Cleaning methods may include brushing, solvent cleaning, or mechanical abrasion.

Joint Design:

The design of the joint influences the welding process. Butt joints, lap joints, and T-joints are common joint configurations for sheet aluminum welding. The joint design should allow for proper penetration and fusion of the weld.

China Aluminum Machining Manufacturers

Choosing China Aluminum Machining Manufacturers offers several advantages that make it a preferred option for many businesses:

  1. Cost-Effective Manufacturing:

    • Chinese manufacturers are often able to provide cost-effective solutions for aluminum machining. The lower labor and operational costs in China contribute to competitive pricing for machined components.

  2. Advanced Manufacturing Capabilities:

    • China has made significant investments in advanced machining technologies. Many manufacturers in China are equipped with state-of-the-art CNC machining equipment, ensuring precision and efficiency in aluminum machining processes.

  3. Wide Range of Expertise:

    • China has a diverse manufacturing landscape with companies specializing in various industries. Whether it's automotive, aerospace, electronics, or other sectors, Chinese aluminum machining manufacturers often have expertise across different industries.

  4. High Production Capacities:

    • China has the infrastructure and production capacities to handle large volumes of manufacturing. This is beneficial for businesses requiring high quantities of aluminum machined components.

  5. Rapid Prototyping Services:

    • Many Chinese manufacturers offer rapid prototyping services, allowing businesses to quickly iterate and test their designs before full-scale production. This is particularly advantageous for product development and innovation.

  6. Customization and Flexibility:

    • China's aluminum machining manufacturers often provide customization options to meet specific design requirements. Whether it's unique geometries, finishes, or tolerances, manufacturers can tailor their services to suit individual needs.

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