Skip to content 
Aluminum CNC Machining Services
With 20 years of aluminum CNC machining experience. AT-Machining Empowering Your Designs with Unmatched Accuracy!
- Certified Materials
- Factory Price
- No Minimum Order
- Fast Turnaround
Save 30% cost on average!
Expert CNC aluminum machining service
Are you looking for a reliable, quick-turn supplier of machined aluminum components? Look no further, AT-Machining offers the best CNC aluminum machining service in the industry. Our highly qualified ISO9001 certified machine shop can make any custom design, simple or complex project. We provide rapid prototyping, small-batch machining, and high-volume production of end-use components.
Our fast and precision CNC machining capabilities include services for CNC Milling, CNC Turning, and CNC Lathe, with flexible production, and shipping options to meet you at the perfect price and product development stage.
Our team of experts is available 24/7 to answer any questions or help with your project.
CNC Milling
3 Axis, 4 Axis and 5 Axis CNC Machining Service for simple and complex geometries parts.
CNC Turning
CNC turning with live tools combines lathe and milling capabilities to machine parts with cylindrical features.
Finishes Services
Add multiple finishes to your parts, such as Anodizing, Sand Blast, Powder Coat, Plating, etc.
About the material
Aluminum is one of the most commonly used metals in the world because it is relatively easy to machine, making it great for CNC machining, and becoming a good choice for many industries.
Aluminum has excellent properties for machining such as:
- Excellent machinability
- Low cost
- Low weight
- Overall versatility
- High strength
- Hardness
- Heat tolerance
- Electrical conductivity
- Corrosion resistance
Comparison of common aluminum alloys
| Aluminum Grade | Cost | Ultimate Tensile Strength | Maximum Operating Temperature | Elongation | Hardness | Weldability | Thermal Conductivity | Common Applications |
| Aluminum 6061-T6 | $ | 291 - 320 MPa | 130 - 150 °C | 12 - 17 % | 60 HRB | High | 152 - 169 W/(m⋅°C) | Automotive, Marine, Electrical |
| Aluminum 7075-T6 | $$$ | 434 - 580 MPa | 100 °C | 2 - 11 % | 79-86 HRB | Poor | 131 - 137 W/(m⋅°C) | Aircraft and aerospace,Marine |
| Aluminum 5083-H111 | $$ | 270 - 350 MPa | 80 - 100 °C | 13 % | 74 HV | High | 118 - 128 W/(m⋅°C) | Marine industry,Pressure vessels |
| Aluminum 6082 | $ | 140 - 340 MPa | 130 - 150 °C | 6.3 - 18 % | 35-56 HRB | High | 160-180 W/(m⋅°C) | Structural frames,Pylons |
Note: The above table of aluminum alloy parameters for various grades is for reference only, contact us for more accurate details.
Available Aluminum Alloys for CNC Machining
Common aluminum alloys for CNC milling or turning include 6061, 7075, 6082, and 5083-H111. 6061 offers corrosion resistance and weldability; 7075 boasts high strength; 6082 provides balanced properties with good machinability; and 5083-H111, with exceptional seawater resistance, is perfect for marine and transport applications.
Each alloy has unique benefits that make them well-suited for different CNC machining applications.
Aluminum 6061-T6
Aluminum 6061-T6 is a heat-treatable alloy boasting high strength and corrosion resistance. Contains magnesium and silicon as main alloying elements. T6 signifies solution heat-treated and artificially aged. Ideal for aerospace, automotive, and structural uses. Known for its weldability and durability.
Aluminum 7075-T6
Aluminum 7075 is prized for its high strength and hardness, making it an ideal choice for products that must withstand high loads or extensive wear and tear. 7075 aluminum is also low in weight and resistant to corrosion. Anodizing can further improve the corrosion resistance of 7075 aluminum and give it an attractive appearance.
Aluminum 5083-H111
Aluminum 5083 H111 is a non-heat-treatable, strain hardened and thermally stabilized aluminum alloy with excellent corrosion resistance, especially to seawater. It has moderate strength, good weldability and ductility making it well suited for marine applications, unfired pressure vessels, cryogenic storage tanks, and transportation equipment.
Aluminum 6082
Aluminum 6082 is a medium-strength alloy with excellent corrosion resistance. It contains magnesium and silicon as main alloying components. Often used in highly stressed applications, it’s weldable and exhibits good formability. Popular in structural engineering, especially in bridges and transport vehicles.
AT-Machining
You Design It, We'll Make It.
CNC Machined Aluminum Applications
Aluminum parts can be found everywhere, in a range of industries, especially automotive, aerospace, industrial equipment and machinery, and consumer and computer electronics.
- 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
Surface Finishes For CNC Machined Aluminum Parts
Many types of surface finishes can be applied to CNC machined aluminum parts. The most common finishes AT-Machining provides are anodizing, powder coating, bead blast and plating. Each of these finishes has unique benefits. Choose the one best suits your needs!
| Name | Description | |
 | As machined | The machined aluminum parts are left with visible tool marks and potentially sharp edges and burrs, which can be removed upon request. |
 | Bead Blasted | Give the machined parts a smooth and uniform matte surface finish, thereby removing tool marks. |
 | Polishing | Creating a smooth and shiny surface by manually polishing in multiple directions or by applying a chemical polish treatment. |
 | Anodizing | Type II (Anodizing color or clear) or Type III (Anodizing hard coat) Anodizing does not cover tool marks unless bead blasted beforehand. |
 | Chromate Conversion Coating | Increase the part's corrosion resistance while retaining its conductivity. RoHS compliant. |
 | Decorative Chrome Plating | Enhance aesthetics and durability of the cnc aluminum components. |
 | Powder Coat | Applying powdered paint to the components and then baking it in an oven, which results in a stronger, more wear- and corrosion-resistant layer that is more durable than traditional painting methods. |
Gallery of CNC machined Aluminum parts
Our team specializes in rapid prototyping and low & large volume production orders for our global customers in multiple industries: medical devices, aerospace, automotive, defense, electronics, hardware startups, industrial automation, machinery, marine and robotics, and many more.
CNC Machining Aluminum FAQs
Do you have a minimum order quantity?
NO! – No minimum quantity! AT Machining provides prototypes and short to medium-run production machining services.
What type of design files does AT Machining accept for quoting?
For the 3D drawing, we would prefer STEP, IGES, or X_T format. For the 2D drawing, we would prefer PDF format there are tolerances with the dimensions if possible.
How can I pay AT Machining?
AT Machining accepts payment in two ways: 1. Bank to bank wire transfer 2. PayPal
What general tolerances can AT Machining achieve?
General Machining Tolerances on metal to +/- 0.005" (+/- 0.127 mm) following ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”(+/- 0.254 mm).
What precision tolerances can AT Machining achieve?
Precision Machining Tolerances down to ±.0002" (0.005mm). AT can manufacture and inspect to tight tolerances per your drawing specifications.
How quickly can I get my parts?
Lead times are 2 to 3 weeks for prototypes and 4 weeks for production runs. Emergency and rush services are available.