CNC machining materials
Aluminum CNC Machining & Rapid Prototyping
Aluminum alloys are among the most widely used materials in CNC machining, prized for their high machinability, excellent strength-to-weight ratio, and natural corrosion resistance. They also offer strong thermal and electrical conductivity, low density, and are well suited to anodizing and other finishes.
At CNC Rapid, we machine custom aluminum parts in China for everything from single rapid prototypes to production runs of 5,000+ pieces. Whether you need a fast aluminum prototype or high-precision production parts, we deliver tight tolerances, clean finishes, and quick turnaround.
| Capability | Detail |
|---|---|
| Order quantity | No MOQ — 1 to 5,000+ parts |
| Tolerances | Standard ±0.01 mm to ±0.15 mm (depending on part size) |
| Max part size | Up to 2,000 × 600 × 600 mm |
| Machining | 3-axis and 5-axis CNC milling and turning |
| Finishes | Anodizing, plating, powder coating, polishing, bead blasting |
| Lead time | Quote within 24 hours |
Aluminum Rapid Prototyping
Need a fast aluminum prototype before committing to production? We machine functional aluminum prototypes directly from your CAD file — no tooling, no minimum order. This lets you test fit, form, and function with a real metal part in days, not weeks.
Because the same CNC process is used for both prototypes and production, the part you validate is the part you scale. When your design is ready, we move straight into volume production of 5,000+ parts with no re-engineering.
- No MOQ — order a single prototype or thousands of parts
- Fast turnaround — quote within 24 hours
- Same-process scaling — prototype and production on the same equipment
- Full finishing — anodizing, plating, and more, even on prototypes
Available materials
6061-T6 Aluminum stands as the most favored aluminum alloy, known for its impressive strength-to-weight ratio, superior machinability, and inherent resistance to corrosion.
7075-T6 Aluminum, an aerospace-grade material, boasts an exceptional strength-to-weight ratio along with strength and hardness levels that rival those of steels.
5083 Aluminum is a strain-hardening alloy noted for its outstanding corrosion resistance, making it ideal for marine applications. It is also weldable.
6063 Aluminum possesses favorable mechanical properties and is capable of undergoing heat treatment. It is suitable for aerospace applications and can be welded.
6060 Aluminum
6060 Aluminum provides solid strength, decent corrosion resistance, and is well-suited for decorative anodizing.
2024 Aluminum
2024 Aluminum is a high-strength alloy known for its superior fatigue resistance, making it well-suited for aerospace applications.
Common Applications for Aluminum CNC Parts
Aluminum’s light weight, machinability, and finish options make it a fit for a wide range of industries:
- Electronics — enclosures, heat sinks, housing bases
- Automotive — brackets, mounts, custom fittings
- Aerospace — lightweight structural and high-strength components
- Robotics — frames, arms, precision fittings
- Medical devices — housings and precision components
- Consumer products — decorative and functional anodized parts
Why Aluminum Is Ideal for CNC Machining
Aluminum is one of the easiest metals to machine. Its softness relative to steel means faster cutting speeds, less tool wear, and shorter production times — which keeps costs down without sacrificing precision. Parts are cut from a solid billet and shaped feature by feature on 3-axis or 5-axis CNC equipment, producing complex geometries directly from your CAD design.
Combined with its light weight (about one-third that of steel), corrosion resistance, and wide choice of finishes, aluminum is a practical choice for everything from one-off rapid prototypes to full production runs.
See Our Aluminum Machining Projects
Explore real aluminum parts we’ve produced — from precision electronic housings to anodized brackets and 7075 gears.