Aluminum CNC Processing in Vaughan, UK

Most of the work we quote starts with 6061-T6. It machines cleanly, welds, takes anodizing well, and holds tight tolerances without much fuss. If your part needs stiffness more than corrosion resistance, 7075-T6 gives roughly double the yield strength of 6061, but it is harder on tooling and does not anodize to the same even color.

2024-T4 is the choice when fatigue life matters, such as stressed brackets or linkage plates. It cuts fast and finishes well, though it is not the alloy to pick for a part that sits outdoors in salt air. For enclosures and covers, 5052 and 5083 offer better corrosion resistance and formability, and 6082 sits close to 6061 with slightly better strength after heat treatment.

A 3-axis mill cuts everything that can be reached from one direction. Add a second setup and you can reach the back, but each flip introduces a small position error and adds labor. On aluminum, those errors show up quickly because the material moves little and the tolerance budget is already tight.

Our 16 simultaneous 5-axis machining centers cut angled faces, ports and contoured pockets in one setup. For a manifold with bores on four sides, that removes three setups and the stack-up that comes with them. Cycle time drops, and the datum stays the same from first cut to last.

Not every part belongs on a 5-axis machine. Simple plates, shafts and housings run faster and cheaper on our 27 three-axis machines or 16 mill-turn centers. We route by geometry, not by machine availability. If a part fits a 3-axis setup with one flip, that is what we quote.

Size sets the limit. The largest 5-axis travel we run is 4,000 × 400 × 150 mm, with a Ø400 mm rotary table for round work. Parts beyond that envelope go to a different platform or get split into assemblies.

Aluminum is soft, so it cuts fast and tools last. That same softness means a light touch is needed on thin walls. A 1.5 mm wall in 6061 will deflect under a heavy radial cut, and the finished part will measure fine on the bench but move when it is clamped in service. We adjust stepdown and support the wall before the finish pass.

±0.005 mm is achievable on bores, slots and mating faces. It is not a blanket tolerance for every dimension on the drawing. The more faces you tolerance that tight, the more setups and inspection time the part needs. Mark the features that actually mate, and leave the rest at general tolerance.

Finish follows the same logic. Ra 0.2–0.8 μm comes from a dedicated finishing pass with a sharp tool and controlled feed. Ra 1.6–3.2 μm is the normal as-machined surface and is fine for most brackets and covers. Anodizing hides small tool marks but does not fix a rough surface underneath.

Every part gets 100% inspection before shipment, with raw material check, in-process monitoring and a final dimensional report on request. Our historical qualification rate is 99.99%. Certifications held: ISO 9001:2015, IATF 16949:2016, ISO 13485:2016 and ISO 27001:2022.

Machining is half the job. Aluminum oxidizes fast, so most parts get a coating before they leave. Anodizing comes in clear, color, hardcoat and conductive types. Hardcoat adds a wear layer on sliding surfaces; conductive anodizing keeps grounding paths alive. Masking is what decides where the coating lands, so send a marked-up drawing.

Electroless nickel, zinc, silver and gold plating cover the parts that need solderability or low contact resistance. Powder coating and black oxide handle housings and frames that are seen. Bead blasting, tumbling, brushing and polishing set the base texture before any of those coats go on.

Laser marking and engraving handle part numbers, logos and traceability codes. Minimum character height is 1.5 mm. Below that, the mark gets soft and hard to read under a loupe, so we ask for a larger size or a different marking method.

A STEP file plus a 2D drawing with tolerances is the fastest route. The STEP gives us the geometry; the drawing tells us which features matter. If you only have a STEP, we can quote, but we will flag any dimension that looks tight and ask before cutting.

Include the alloy, quantity and finish in the first message. A 6061 bracket in 10 pieces and the same bracket in 7075 with hardcoat anodizing are two different quotes. Quantity matters too: one prototype and a 10,000-part run take different setups. There is no minimum order quantity here, so both are fine.

We return a quotation and a free DFM analysis within 12 hours. Production can start within 24 hours, and parts ship in 3–5 days. Our historical late-delivery probability is below 2%. Uploads are secure and confidential, and an NDA is available on request.