Aluminum is favored for its low density and excellent corrosion resistance and is widely used in a variety of industries. VMT specializes in providing high-precision, high-quality aluminum alloy CNC machining services to meet your specific needs.
We are ISO 9001:2015, IATF 16949 and have 16 patents and high-tech enterprise certificates. Whether it is prototype testing, small batches or large-scale production, we can meet your needs
We provide a variety of processing services for various aluminum alloys, including CNC machining, die casting, aluminum extrusion, sheet metal processing, 3D printing, etc. Each aluminum alloy is suitable for different applications according to its characteristics. VMT has more than 15 years of experience in CNC aluminum machining services. We are your best partner to improve your market benefits. The following are the aluminum materials we often CNC machining:
Properties: Excellent strength-to-weight ratio, good corrosion resistance, and high machinability. It can be welded and anodized easily.
Applications: Widely used in aerospace components, bicycle frames, automotive parts, and structural applications.
Properties: Known for its exceptional surface finish and corrosion resistance, especially after anodizing. Slightly softer than 6061.
Applications: Ideal for architectural applications like window frames, piping, and decorative trims.
Properties: High strength, good corrosion resistance, and excellent weldability. It’s often seen as a structural alloy with good machinability.
Applications: Used in bridges, cranes, transportation frames, and trusses in construction due to its strength and durability.
VMT has 15 years in the CNC machining industry. We combine experience, precision, and quality to deliver aluminum machining services you can trust.
We offer a full range of CNC machining services to meet the needs of a variety of projects, from simple parts to complex assemblies. We have advanced equipment and an experienced team to ensure that every step is accurate, consistent and efficient.
CNC Turning
Produce round or cylindrical parts. Provide smooth surfaces and accurate dimensions, and manufacture high-precision shafts, bushings and threaded parts, etc.
CNC Milling
Suitable for flat, inclined or special-shaped surfaces, widely used in housings, brackets and casings. High-precision CNC milling services can be provided according to customer needs.
3-axis and 5-axis machining
With 5-axis machines, we can reduce the number of setups and produce fine parts, thereby improving efficiency and accuracy.
Aluminum comes in various grades, each with different mechanical properties suitable for specific applications. The table below highlights the typical mechanical properties of commonly used aluminum alloys, helping you choose the right material for your project based on strength, hardness, and machinability.
| Alloy | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (Brinell) | Key Features |
|---|---|---|---|---|---|
| 6061 | 276–310 | 240–275 | 12–17 | 95 | Good strength, corrosion resistance, weldable, widely used in structural parts. |
| 6063 | 145–186 | 130–150 | 10–18 | 73 | Excellent surface finish, good corrosion resistance, ideal for architectural use. |
| 6082 | 260–310 | 240–270 | 10–16 | 89 | High strength, corrosion resistant, suitable for structural applications. |
| 7072 | 90–130 | 35–75 | 15–25 | 48 | Excellent corrosion resistance, often used in cladding and heat exchangers. |
| 7075 | 510–570 | 430–480 | 5–11 | 150 | Very high strength, less corrosion resistant, used in aerospace and tooling. |
| 2011 | 310–360 | 275–310 | 10–15 | 95 | Exceptional machinability, ideal for precision machining of complex parts. |
| 2024 | 470–520 | 325–410 | 10–15 | 120 | High fatigue resistance, commonly used in aerospace and structural components. |
| 3003 | 130–200 | 115–145 | 15–25 | 40 | Good corrosion resistance and formability, used in roofing and cookware. |
| 5052 | 210–260 | 160–200 | 12–20 | 60 | Excellent corrosion resistance, suitable for marine, automotive, and sheet metal. |
CNC machining is one of the most efficient and reliable ways to produce aluminum parts. Here are the key advantages of using CNC machining for aluminum parts:
1. Lightweight Yet Strong
Aluminum is much lighter than steel but still strong enough for many industrial uses. This makes it ideal for parts where weight reduction is important, such as in automotive or aerospace components.
2. Excellent Machinability
Aluminum is easy to cut, drill, and shape, which makes the CNC machining process faster and more cost-effective. It allows for high-speed machining with less tool wear.
3. High Precision and Accuracy
CNC machines can achieve tight tolerances when machining aluminum. This means each part can be made with consistent size, shape, and quality, especially important for complex or technical designs.
4. Good Corrosion Resistance
Aluminum naturally resists rust and corrosion. This makes it suitable for outdoor or harsh environments without needing extra coatings or treatments.
5. Attractive Surface Finish
Aluminum parts can be easily finished with polishing, anodizing, or painting to improve their appearance and durability. It’s ideal for both functional and aesthetic applications.
6. Versatile for Many Industries
From electronics and medical devices to aerospace and consumer products, aluminum CNC parts are used across many industries thanks to their reliability and performance.
With over 15 years of experience in producing custom aluminum components, VMT has built a strong supply chain network to support multi-step processing and material combinations. We currently offer over 40 surface treatment options to meet both functional and aesthetic needs. These finishes help improve corrosion resistance, appearance, durability, and part performance.
| Surface Treatment | Description | Benefits | Appearance | Applications |
|---|---|---|---|---|
| Anodizing | Electrochemical process that forms a protective oxide layer. | Increases corrosion resistance, enhances hardness, and allows color customization. | Matte or glossy, colored finish | Consumer electronics, aerospace, automotive |
| Powder Coating | Dry powder is electrostatically applied and then cured under heat. | Provides a thick, durable, and chip-resistant coating with rich color options. | Thick, colorful, smooth surface | Machinery covers, outdoor equipment, enclosures |
| Polishing | Mechanical finishing method that removes surface imperfections. | Enhances shine, smoothness, and visual appeal. | Bright, mirror-like finish | Decorative hardware, optical parts, automotive trim |
| Brushed Finish | Surface is finished using abrasive belts or brushes in one direction. | Hides minor flaws and gives a modern, clean look. | Satin, directional texture | Panels, handles, appliances, interior trim |
| Electropolishing | Electrochemical removal of material from a metallic surface. | Improves smoothness, corrosion resistance, and cleanliness. | Glossy, highly reflective | Medical devices, food-grade equipment, aerospace |
| Bead Blasting | Surface is blasted with fine glass beads at high pressure. | Creates a uniform matte finish, ideal for preparing parts for painting or coating. | Dull, smooth matte | Mechanical parts, tool housings, pre-painting finish |
| Passivation | Chemical treatment that enhances the natural oxide layer on aluminum. | Boosts corrosion resistance without altering appearance or dimensions. | Natural metallic, slight sheen | Marine parts, chemical equipment, precision components |
| Custom Finishing | Custom multi-step processes combining materials and treatments. | Tailored to specific part functions and design needs, supports over 40 unique finishes. | Depends on selected method | Custom parts, prototypes, multi-material assemblies |
We specialize in a range of aluminum machining capabilities, including CNC machining, rapid tooling, die casting, sheet metal fabrication, and 3D printing. These advanced services enable us to produce high-quality aluminum components efficiently and with precision.
We use laser cutting, bending, stamping, and welding to make accurate sheet metal parts like housings and brackets. Our process is flexible, allowing us to create precise parts for different industrial uses.
Customized CNC parts extrusion dies and profile manufacturing, using extrusion processing technology to meet customers’ needs for various complex shape processing
We use advanced 3D printing technology to produce aluminum components for cars. This fast and flexible method is ideal for making complex shapes from different materials.
We offer die casting services to produce precise metal parts like housings, heat sinks, and support frames for industrial use. It’s a good choice for making large quantities of parts with consistent quality and high accuracy.
Which Aluminium is Best for CNC?
6061 and 7075 aluminum alloys are among the best for CNC machining. 6061 is versatile, offering excellent corrosion resistance and machinability, making it ideal for general applications. 7075 is stronger but less corrosion-resistant, making it suitable for aerospace and high-strength applications.
Difference Between Machined Aluminum and Cast Aluminum Parts?
Machined aluminum parts are made by removing material from solid aluminum, ensuring tight tolerances and smooth finishes. Cast aluminum parts are formed by pouring molten aluminum into molds, which is cheaper for large-scale production but offers less precision and durability.
What Makes Aluminum a Popular Choice for CNC Machining?
Aluminum is lightweight, corrosion-resistant, and offers excellent machinability with high thermal and electrical conductivity. It supports tight tolerances, reduces tool wear, and is suitable for a variety of industries, from aerospace to automotive.
What is CNC Machined Aluminum?
CNC machined aluminum refers to aluminum components created through Computer Numerical Control (CNC) processes. CNC machines cut and shape aluminum into precise parts with high accuracy, often used in industries requiring exacting standards.
What Materials Cannot Be CNC Machined?
Materials like rubber, soft plastics, certain composites, and extremely brittle materials are challenging or impossible to CNC machine due to their lack of rigidity or tendency to fracture under stress.
Is Aluminum Difficult to Machine?
No, aluminum is generally easy to machine. Its softness, lightweight nature, and excellent thermal conductivity result in fast cutting speeds, reduced tool wear, and high-quality finishes.
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With a range of finishing services to choose from and guaranteed quality thanks to our inspection services you can trust you will receive great parts every time. Once you send us your 3D CAD file, one of our customer service engineers will check your design for manufacturability to ensure that the part can be made to your expectations and budget requirements. Contact us today for a free quote!
