Aluminum CNC Machining — Vietnam

AL6061-T6 & 7075-T6 Precision Parts
Machined in Vietnam. Anodized. Shipped to Your Dock.

For buyers sourcing aluminum CNC machining in Vietnam, alloy grade, surface finish, and anodizing spec each move the final cost significantly. VNcontX machines AL6061-T6, 7075-T6, and 5052 to ±0.005mm standard tolerance, with in-house Type II and Type III anodizing to MIL-A-8625F. ISO 9001:2015. 100% FAI with Zeiss Contura CMM report on every order. Lead time 7–12 days from drawing approval.

AL6061 CNC milled aluminum enclosure with internal cooling channels and threaded bosses — precision machined in Vietnam by VNcontX, ±0.005mm tolerance
±0.005mm Standard Tolerance
Ra 0.8μm Standard Surface Finish
Cpk ≥ 1.67 Process Capability
100% FAI CMM Report Every Order

Aluminum Alloy Grades for CNC Machining — What We Stock and Why It Matters

Not all aluminum CNC jobs are the same. AL6061-T6 is the default for structural housings, brackets, and enclosures — good machinability, consistent anodize adhesion, widely available. AL7075-T6 is for load-bearing or fatigue-critical parts: higher strength, higher cost, tighter tool wear control required. AL5052 is the sheet and forming alloy — we combine it with our sheet metal line for bent and welded aluminum assemblies.

When aluminum geometry requires simultaneous contouring or tight positional tolerance across multiple faces without re-fixturing, we route those jobs to our 5-axis CNC machining line. Single-setup accuracy eliminates the fixture-to-fixture stack-up that typically degrades true position on aluminum housings and impeller-style parts. For mixed-material assemblies combining aluminum with corrosion-resistant components, see our stainless steel CNC machining page — both services run under the same ISO 9001:2015 QMS and ship on the same lead time schedule.

Alloys Stocked
  • AL6061-T6 — structural, general purpose
  • AL7075-T6 — high-strength, aerospace-grade
  • AL5052 — corrosion-resistant, sheet applications
Process Specs
  • Tolerance: ±0.005mm standard | ±0.003mm precision
  • Surface: Ra 0.8μm standard | Ra 0.4μm fine
  • Equipment: DMG Mori 5-axis | Mazak QT turning

Aluminum Finishing — Anodizing to Spec, Not Just Color

Most CNC suppliers subcontract anodizing and pass the coordination risk to you. VNcontX runs Type II and Type III hard anodize in-house, inspected against MIL-A-8625F on the same order. That means one CMM report covers both dimensions and coating — you are not chasing two vendors for one shipment.

AL6061 CNC milled bearing housing with precision bore seats and counterbored bolt pattern — multi-axis machined in Ho Chi Minh City Vietnam by VNcontX
Finishing Options for Aluminum
  • Type II Anodize — MIL-A-8625F Class 1/2
  • Type III Hard Anodize — MIL-A-8625F Class 3
  • Chem Film / Alodine (electrical continuity)
  • Bead blast — Ra uniform before anodize
  • Electropolish — for optical or sealing surfaces
  • Laser marking — part numbers, serial IDs

Questions about aluminum CNC machining in Vietnam

Does anodizing affect the final dimensions — do you compensate in the machining?
Yes. Type II anodize adds roughly 0.005–0.010mm per surface. Type III hard anodize adds 0.025–0.050mm. For tight-tolerance bores or mating surfaces, we machine undersize by the anodize allowance specified in your drawing — or we calculate it from the coating spec if your drawing calls out post-anodize dimensions. This is reviewed at drawing stage, before the first chip is cut. The CMM report measures post-anodize dimensions.
What’s the lead time for aluminum prototypes vs production runs?
FAI samples (1–5 pcs): 3–5 business days. Standard production: 7–12 days from drawing approval. Expedited: 5–7 days. These numbers include anodizing when specified. If you need faster — tell us at RFQ. We confirm feasibility before you commit.
Can you match a specific anodize color or Pantone shade?
For standard colors (clear, black, red, blue, gold) we stock dye lots. For Pantone-matched or RAL-specific shades, we require a color reference sample or an approved limit sample on the first order. Color consistency lot-to-lot is controlled by dye concentration and bath temperature — we document both in the process record attached to your CoC.
Is AL7075-T6 harder to machine than 6061 — does it cost more?
AL7075-T6 is harder and more abrasive — tool wear is higher, cutting speeds need to be managed more carefully than 6061. That does translate to a modest machining cost premium, typically 10–20% depending on geometry complexity. Material cost is also higher. If your application allows 6061-T6 (adequate yield strength for most structural uses), we will flag it during DFM review so you can decide with full cost visibility.
Get a Quote

Send your aluminum drawing — we quote in 24 hours

Upload your STEP or DXF. Include alloy, finishing spec, and tolerance callouts. A real engineer reviews your drawing before we quote — not an automated calculator. Full capability overview at our CNC machining page. For material-specific data on bronze, copper, PEEK, and engineering plastics, see our CNC machining materials guide.

Direct line: duc.nguyen@vncontx.com  |  (+84) 906 214 789