High-Precision Aluminum Machining Parts | Custom CNC Solutions by Welleshaft
Welleshaft offers industry-leading aluminum CNC machining services tailored to your specific needs. Whether you’re producing lightweight aerospace components, durable automotive parts, or precision medical devices, our aluminum machining capabilities ensure accuracy, repeatability, and unmatched quality.
What Is an Aluminum Machining Part?
An aluminum machining part refers to a component fabricated from aluminum alloys using CNC (Computer Numerical Control) machining processes such as milling, turning, drilling, or tapping. These parts begin as solid aluminum blocks (billets or extrusions) and are machined down with high-precision tools.
Why Choose CNC Aluminum Machining?
Benefits of Aluminum for Machined Parts
- Lightweight & Durable
Aluminum has a high strength-to-weight ratio, making it ideal for aerospace, automotive, and robotics industries. - Excellent Machinability
Its softness and low melting point allow faster machining and reduced tool wear. - Corrosion Resistance
Natural oxide layer protects against corrosion; anodizing further improves resistance. - Versatile Applications
Used across medical, electronics, transportation, marine, and consumer products.
Welleshaft Aluminum CNC Machining Services
At Welleshaft, we provide complete solutions for custom aluminum machining parts, from design validation to production, including post-processing and inspection.
Key Capabilities
| Feature | Specification |
| Tolerance | ±0.005 in (±0.125 mm) or tighter |
| Wall Thickness | Minimum 0.75 mm |
| Max Part Size | 2000 × 800 × 1000 mm |
| Lead Time | As fast as 5-10 working days |
| Machining Types | CNC milling (3-axis, 4-axis, 5-axis), CNC turning |
| Surface Finishes | Anodizing, powder coating, bead blasting, polishing |
| Certifications | ISO 9001:2015, ISO 13485, AS9100D, ITAR |
| Quantity | Prototypes to mass production |
Available Aluminum Materials for CNC Machining
At Welleshaft, we offer a comprehensive range of aluminum grades for CNC machining, from general-purpose alloys to high-performance aerospace materials. Below is a detailed overview of the most commonly used aluminum materials, including their international designations (EN/DIN, UNS, Werkstoffnummer), material numbers, and typical alloy compositions:
| Material | EN / DIN / UNS / Werkstoff | Composition | Properties & Use Cases |
| Aluminum 6061-T6 / T651 | 3.3211 / 65028 / AlMg1SiCu | AlMg1SiCu | Excellent strength, machinability, weldability. Versatile general-use alloy. |
| Aluminum 6082 / 6082-T651 | 3.2315 / 64430 / AlSi1MgMn | AlSi1MgMn | Higher strength than 6061, good corrosion resistance. Ideal for structural parts. |
| Aluminum 7075-T6 / T651 / T7351 | 3.4365 / 76528 / AlZn5.5MgCu | AlZn5.5MgCu | Very high strength. Aerospace, defense, mold tooling. Fair corrosion resistance. |
| Aluminum 5083-H111 | 3.3547 / 54300 / AlMg4.5Mn0.7 | AlMg4.5Mn0.7 | Marine-grade with exceptional corrosion resistance. Great weldability. |
| Aluminum 5052 | EN AW-5052 / 3.3523 / AlMg2.5 | AlMg2.5 | Excellent corrosion resistance. Widely used in marine, automotive, enclosures. |
| Aluminum 2024-T351 | 3.1355 / 24530 / AlCu4Mg1 | AlCu4Mg1 | High fatigue resistance. Common in aerospace fasteners, fuselage parts. |
| Aluminum 2017A | 3.1325 / 24530 / AlCu4MgSi | AlCu4MgSi | Medium to high strength. Good machinability. Used in aerospace and automotive. |
| Aluminum 2014 | 3.1255 / 24345 / AlCu4SiMg | AlCu4SiMg | High strength, less corrosion resistance. Aerospace structural parts. |
| Aluminum 7050 | EN AW-7050 / 3.4144 / AlZn6CuMgZr | AlZn6CuMgZr | Superior toughness, strength, and corrosion resistance. Premium aerospace alloy. |
| Aluminum 6060 | 3.3206 / AlMgSi | AlMgSi | Good corrosion resistance and surface finish. Architectural applications. |
| Aluminum 6063 | EN AW-6063 / 62400 / AlMg0.7Si | AlMg0.7Si | High surface quality. Used in extrusions, windows, and structural tubing. |
| Aluminum MIC6 | – | Cast aluminum plate | Exceptional flatness and dimensional stability. Ideal for jigs, fixtures, bases. |
Key Highlights by Alloy Type
1. General Purpose Alloys
6061-T6 / T651 (3.3211)
🔩 Very good mechanical strength and anodizing response
🛠 Used in enclosures, frames, brackets, and structural components
🧰 Composition: AlMg1SiCu
6082-T6 / T651 (3.2315)
🏗 High-strength structural applications
🧰 Composition: AlSi1MgMn
Similar to 6061 but with better yield strength
6063 (EN AW-6063) and 6060 (3.3206)
🪟 Excellent surface finish, commonly used for architectural purposes
💡 Ideal for decorative anodizing
Composition: AlMg0.7Si / AlMgSi
2. High-Strength Aerospace Alloys
7075-T6 / T651 / T7351 (3.4365)
✈️ Aerospace and high-performance mechanical components
🔩 Excellent strength-to-weight ratio
💧 Moderate corrosion resistance
Composition: AlZn5.5MgCu
7050 (EN AW-7050, 3.4144)
💪 Superior toughness and corrosion resistance
🚀 Used in aircraft structures, especially where stress corrosion cracking is a concern
Composition: AlZn6CuMgZr
3. Marine & Automotive Alloys
5083-H111 (3.3547)
🌊 Exceptional resistance to seawater
🛥️ Ideal for marine tanks, hulls, and vehicle body parts
Composition: AlMg4.5Mn0.7
5052 (3.3523)
🚗 Excellent formability and corrosion resistance
⚙️ Used in fuel tanks, signage, electronics housing
Composition: AlMg2.5
4. High Fatigue and Wear Resistance Alloys
2024-T351 (3.1355)
✈️ High strength and fatigue resistance, low corrosion resistance
💡 Used in aircraft structures, transport equipment
Composition: AlCu4Mg1
2017A (3.1325) and 2014 (3.1255)
🧱 Higher strength and hardness than 2024
🛠 Ideal for parts needing high wear resistance
Composition: AlCu4MgSi / AlCu4SiMg
5. Precision and Stability
Aluminum MIC6
📏 Cast tooling plate with excellent dimensional stability
⚙️ Used in fixtures, gauge blocks, and inspection jigs
Common Applications of Aluminum Machined Parts
- Aerospace components:structural parts, landing gear, brackets
- Medical devices:enclosures, housings, surgical tools
- Automotive parts:suspension components, brackets, housings
- Electronics:heatsinks, enclosures, frames
- Marine equipment:navigation housings, corrosion-resistant parts
CNC Machining Process for Aluminum Parts
From CAD to Reality
- CAD Design
Your design is prepared in 3D using tools like SolidWorks or AutoCAD. - CAM Toolpath Generation
Toolpaths are created based on geometry and machine strategy. - Setup & Machining
Our CNC machines precisely cut the raw aluminum stock. - Post-processing
Surface finishes like anodizing or bead blasting are applied. - Quality Control
Welleshaftemploys CMM, visual checks, and material traceability.
Available Surface Finishes
| Finish Type | Appearance | Benefits |
| Bead Blasting | Matte or satin | Uniform texture, removes tool marks |
| Type II Anodizing | Clear or dyed (black, red, etc.) | Good corrosion protection, aesthetic |
| Type III Hard Anodize | Grey/black matte | High wear and corrosion resistance |
| Powder Coating | Glossy/matte color options | Durable, decorative finish |
| Electroless Nickel | Metallic silver, uniform coating | Conductive, corrosion-resistant |
Why Choose Welle Inspection?
✅ In-House Quality Assurance: All aluminum machining parts undergo strict inspection.
✅ 13+ Aluminum Grades Available: We stock most popular grades to speed up lead times.
✅ Global CNC Network: Over 240 partnered aluminum machine shops for capacity & complexity.
✅ Instant Online Quoting: Upload your CAD files to get pricing within minutes.
✅ Expert Support: Engineering team reviews for DFM (Design for Manufacturability).
Frequently Asked Questions
🔧 What is the cost of aluminum machining parts?
Costs depend on part geometry, tolerance requirements, aluminum grade, quantity and post-processing. Upload your CAD to get an instant quote.
📐 What tolerances can you achieve with aluminum?
Standard tolerance is ±0.0005″ (±0.0125 mm), but tighter tolerances like ±0.0001″ are possible for critical features.
🛠️ What aluminum grade should I choose?
For general use, 6061-T6 is the go-to. For aerospace or high-strength parts, go with 7075-T6. For marine or corrosion-prone environments, 5083 or 5052 are ideal.
🛠️Is aluminum suitable for high-stress applications?
Yes. Alloys like 7075 and 2024 offer strength comparable to some steels, making them suitable for aerospace and structural applications.
🛠️What is an aluminum machining part?
It is a custom component precisely shaped from aluminum stock using CNC milling, turning, or drilling. These parts are highly accurate, repeatable, and designed based on CAD drawings.
Get a Quote for Your Aluminum Machining Part Today
At Welleshaft, we turn your designs into precision-crafted aluminum parts with speed and confidence. Whether you’re developing a prototype or scaling up to production, we’re here to support your innovation.
👉 Upload Your CAD File for Instant CNC Quote
📧 Have a custom request? Contact us at [email protected]
Related Services
- CNC Machining Services
- Aluminum Die Casting Services
- Precision Turning Services
- Surface Finishing Options
