Aluminium CNC Parts
6061 and 7075 parts milled and turned to ±0.005 mm, anodised or as-machined.
Aluminium for parts that have to be light and come off the machine quickly. 6061 covers most brackets and housings; step up to 7075 when the part carries real load.
How we make it: Precision CNC machining service →
2–4 weeks
5 pieces
ISO 9001:2015 · AS9100D
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Linear tolerance | ±0.005 | mm |
| Surface roughness | Ra 0.8 | µm |
| Max envelope | 800 × 600 × 400 | mm |
| Wall down to | 0.8 | mm |
| Anodise thickness | 5–25 | µm |
| Hardness range | 95–150 | HB |
Available Materials
- Aluminium 6061-T6
- Aluminium 7075-T7351
- Aluminium 6082-T6
- Aluminium 2024-T351
- Aluminium 5083
Typical Applications
- Mounting brackets
- Instrument housings
- Heat spreaders
- UAV frames
- Pneumatic fittings
Surface Finishes
- As-machined
- Bead blast
- Anodise Type II / III
- Hard anodise
- Chromate conversion
- Powder coat
Industries Served
- Aerospace
- Automotive & EV
- Consumer Electronics
- Automation
- Telecom & 5G
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Linear tolerance at ±0.005 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Wall down to at 0.8 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Surface finish
- Surface roughness at Ra 0.8 µm. Every step below the ordinary as-machined Ra 1.6 µm adds a finishing pass; a callout on a face nobody touches is the most common over-specification we quote.
- Material
- The first material listed, Aluminium 6061-T6, rates 9/10 on our machinability scale at 95 HB. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 5 pieces, so on a first order setup and programming are spread over very few parts and they are most of the price. Repeat orders at the same quantity are cheaper without anything on the drawing changing.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Surface roughness tester (Mitutoyo) against the Ra callout
- Rockwell hardness tester on the part, not only against the mill certificate
- First article inspection to AS9102, because this family carries an aerospace or automotive certificate
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- 6061 or 7075?
- 6061 for anything welded or mildly loaded, 7075 when the part is highly loaded and never welded. 7075 machines beautifully but cracks at welds.
Related part families
Precision Milling Components
3, 4 and 5-axis milled components to ±0.005 mm, from one-off prototypes to 10,000-piece runs.
Stainless Steel Machined Parts
303, 316L and 17-4 PH parts machined and passivated, including food and medical grades.
CNC Machined Housings
Machined housings with bored seats and sealing faces, held coaxial to 0.01 mm.