CNC Machining Aluminum
- ISO 9001:2015 certified
- Wide aluminum grades available
- From prototyping to mass production
- The MOQ is one piece
Beska – Best Quality with Competitive Price.
With expertise in sheet metal fabrication and CNC machining, we’re here.
Our Aluminum Machining Capabilities
At Beska, we customize high-precision CNC machining of aluminum components. Equipped with advanced machines and a skilled engineering team, we ensure that every part meets tight quality requirements.
ISO9001:2015 certified. We’re committed to delivering parts to the industry standard with repeatable quality and high efficiency.
Engineering Guidance. At Beska, there is an engineering team with 10+ years’ experience. We offer guidance on selecting the material and optimizing design.
Multi-axis CNC Milling & CNC Turning. Beska is well-equipped with 3-axis, 4-axis, 5-axis, and Swiss-type machines. These setups handle complex surfaces and angled structures with high consistency.
Multiple Aluminum Alloys. There is a list of aluminum alloys available at Beska. According to your final application, we will choose the right aluminum alloy.
Tight Tolerance Control. We maintain tolerances as tight as ±0.005mm, making our services ideal for parts in the medical, aerospace, and robotics industries.
Why Aluminum Is a Preferred Material for CNC Machining
Aluminum is one of the most commonly used materials for precision machining. It offers a balance of strength, weight, and processability.
- Strength-to-weight efficiency: Aluminum is strong yet lightweight, ideal for aerospace frames and automotive parts.
- Thermal conductivity: It dissipates heat well, making it suitable for housings, heat sinks, and enclosures.
- Machinability: Aluminum machines faster and cleaner than many steels or titanium alloys, which lowers production time and cost.
- Corrosion resistance: Combined with surface treatments like anodizing, aluminum holds up well in various environments.
- Cost-effectiveness: Its availability and workability make it a popular option for both prototyping and short-run production.
For aluminum’s versatile properties, it has been used in various industries like medical, electronics, and drone.
Aluminum Grades in CNC Machining
At Beska, we work with a wide range of aluminum grades. Each has its own mechanical properties and machining characteristics. Here’s an overview:
| Grade | Temper | Tensile Strength (MPa) | Machinability | Corrosion Resistance | Typical Applications |
| 6061 | T6 | 310 | Good | Excellent | General parts, brackets, enclosures |
| 7075 | T6 | 570 | Fair | Moderate | Aerospace parts, structural arms |
| 6082 | T6 | 340 | Good | Very Good | Transportation, machine parts |
| 5052 | H32 | 230 | Fair | Excellent | Sheet metal housings, marine parts |
| 5083 | H116 | 330 | Poor | Excellent | Marine structures, cryogenic tanks |
| 6063 | T5/T6 | 200–250 | Good | Excellent | Architectural, heat sinks |
| 2024 | T3 | 470 | Poor | Poor | Aerospace skins, fuselage |
| 7050 | T7451 | 510 | Fair | Better than 7075 | Aircraft bulkheads |
| MIC6 | Cast | 180 | Excellent | Good | Fixtures, base plates |
| 2017 | T4 | 420 | Moderate | Poor | Aerospace, structural parts |
| 2014 | T6 | 450 | Moderate | Poor | High-load components |
We select tooling strategies and cutting parameters based on the alloy and final use. If you have drawings or material specs, we can advise the most suitable option.
Beska – Best Quality with Competitive Price.
With expertise in sheet metal fabrication and CNC machining, we’re here.
Common Challenges in Aluminum CNC Machining
Precision CNC machining of aluminum often comes with specific challenges. Here are some we tackle regularly:
Thin wall deformation
Aluminum’s low rigidity makes thin-walled parts prone to flex or distortion during cutting. We reduce cutting forces and apply multi-pass light cuts while optimizing fixturing to maintain dimensional stability and appearance.
Built-up edge and surface scratches
Even with good machinability, 6061 and similar alloys can create burrs or rough textures if chips accumulate. We use high-speed tooling with proper rake angles and apply mist cooling to ensure clean cutting and smooth finishes.
Anodizing inconsistencies
Color uniformity is critical for many customer-facing parts. Pre-treatment issues can affect anodizing results. We apply a consistent bead blasting process before anodizing and closely monitor cleaning to ensure even color tone and finish.
At Beska, these are typical scenarios we manage daily. Our experience allows us to plan ahead and keep aluminum components precise and production-ready.
Surface Finishing Options for Aluminum Parts
Surface treatments improve durability, appearance, and corrosion resistance of the aluminum machined parts. At Beska, we offer several surface finishing options:
| Type | Description | Effect/Benefit | Suitable Grades | Pictures |
| Anodizing | Creates a protective oxide layer | Corrosion resistance, colored finish | 6061, 5052, 6082 |  |
| Sand Blasting | Surface matte treatment | Satin texture, ideal for post-anodizing | All aluminum alloys |  |
| Polishing | Mechanical or manual smoothing | Glossy surface or mirror finish | Enclosures, cosmetic parts |  |
| Electroplating | Nickel or other metal coating | Improved wear and conductivity | Requires pre-treatment |  |
| Passivation | Chemical passivation layer | Enhances corrosion resistance | Select aluminum types |  |
| Powder Coating | Static powder, baked finish | Durable and colorful exterior | Panels, outdoor brackets |  |
| Laser Engraving | Surface marking | Permanent text, logos, and serial numbers | Anodized aluminum |  |
Let us know your target finish and application environment. We’ll recommend the best surface treatment and share pre/post images if needed. For more surface finishing options, you can click learn more.
Beska – Best Quality with Competitive Price.
With expertise in sheet metal fabrication and CNC machining, we’re here.
Case Study: Aluminum 6061 Brackets for Drone Assembly
A client in the drone industry needed lightweight, rigid brackets made from Aluminum 6061-T6. These parts would connect motors and sensors within a compact airframe.
Challenges: The brackets featured thin walls and angled surfaces that were sensitive to cutting pressure; The surface required black anodizing with no visible marks or discoloration; Assembly holes needed to stay within a ±0.01mm tolerance for fitment
What We Did: We selected 5-axis machining to complete multiple faces in one setup and minimize tolerance stacking. Our team tested several clamping strategies to reduce stress. Once machined, all parts underwent uniform bead blasting and were sent for anodizing. Post-finishing, we performed CMM checks and provided the customer with dimensional reports and HD photos for final confirmation.
Result: The customer approved a follow-up order and is exploring converting more components to 6061 CNC brackets.
Related Articles
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FAQ
Standard lead time is 5–7 working days for prototyping. Complex structures or special finishes may require up to 10–15 days.
Yes, but we recommend Type II or Type III anodizing. Color results may not be as even as with 6061.
Yes. Our anodizing, plating, and coating processes can be certified as RoHS-compliant. Third-party reports are available.
We accept STEP, IGES, STP, DWG, DXF, and other major formats. Including both 2D and 3D drawings is ideal for accurate quoting.
6061-T6 is widely considered the best choice for general use. It offers good strength, excellent machinability, and reliable anodizing outcomes.
Yes. We specialize in low-volume production from 1 to 100 pieces. Prototypes can also be iterated quickly based on feedback.
Get A CNC Machining Aluminum Quote!
Beska – Best Quality with Competitive Price.
With expertise in sheet metal fabrication and CNC machining, we’re here.
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