Aluminum
Aluminum is a metal family widely used for CNC parts because of its low density, machinability, and strength-to-weight balance.
Overview
Aluminum alloys are used from prototypes through end-use parts because they are lightweight, corrosion resistant, and generally easy to machine. For CNC, 6061-T6 is a balanced and widely available starting point. Consider 7075 for higher strength or 5083 for different corrosion and welding requirements.
Properties
| Property | Typical value for 6061-T6 |
|---|---|
| Density | 2.70 g/cm³ |
| Ultimate tensile strength | Approximately 290 MPa |
| Yield strength | Approximately 240 MPa |
| Elastic modulus | Approximately 69 GPa |
| Thermal conductivity | Approximately 167 W/m·K |
| Corrosion resistance | Good |
Values can vary with product form, standard, and supplier. For critical designs, use the stock material certificate and current data sheet.
Compatible Processes
Aluminum works with CNC milling, turning, sheet metal, extrusion, casting, and suitably equipped metal-additive processes. On Fabberworks, CNC machining is the primary flow for precise low-volume parts.
Recommended Uses
- Lightweight machine part and bracket
- Electronics enclosure and heat spreader
- Fixture, jig, and functional prototype
- Robotics and automation component
- Anodized cosmetic or corrosion-resistant part
Troubleshooting
State alloy and temper clearly in the RFQ; "aluminum" alone leaves the material selection ambiguous. Thin walls and deep pockets may distort, while sharp internal corners are limited by tool radius. Account for anodizing's color variation and dimensional buildup on critical surfaces.