CNC Polishing 3004 Aluminum is part of VT machining's grade-specific capability. 3004 Aluminum is lightweight with excellent machinability, and we combine controlled finishing with material-aware setup to produce parts that meet your specification.
CNC Polishing Capability for 3004 Aluminum
- Lightweight (~2.7 g/cm³)
- Excellent machinability
- Tolerance to ±0.01 mm
- Anodising-ready
3004 Aluminum Material Data
| Density | 2.70 g/cm³ |
|---|---|
| Tensile strength | 310 MPa |
| Yield strength (0.2%) | 276 MPa |
| Hardness | 95 HB |
| Melting point | 582–652 °C |
| Thermal conductivity | 167 W/m·K |
| Thermal expansion | 23.6 ×10⁻⁶/K |
| Electrical conductivity | 43% |
| Machinability (C36000 = 100%) | 190% |
| Grades we run | 6061, 6082, 6063, 7075-T6, 5052, 2024-T3, MIC-6 cast plate |
Published typical values for 6061-T6. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Thin walls relax after roughing. We rough, let the part stabilise, then finish — otherwise a 1.5 mm wall bows by more than the tolerance it was cut to.
Machining 3004 Aluminum with CNC Polishing
The machinability of 3004 Aluminum is excellent; high cutting speeds and superb finishes achievable. For CNC Polishing we select tooling, feeds, speeds and coolant to match, keeping the 3004 Aluminum workpiece stable and the result accurate.
Because we machine 3004 Aluminum regularly, proven settings shorten setup and keep quality repeatable across reorders.
Achievable Tolerances for CNC Polishing 3004 Aluminum
| Feature | Standard | Precision |
|---|---|---|
| Surface roughness | Ra 0.8 µm | Ra 0.05 µm |
| Edge break | 0.1–0.3 mm | 0.05 ±0.02 mm |
| Material removed | 0.02 mm | 0.005 mm |
| Bore roundness after honing | 0.005 mm | 0.002 mm |
| Cross-hatch angle | 45° ±10° | 45° ±5° |
| Cosmetic grade | uniform satin | mirror, no visible lines |
| Masking of datum faces | on request | standard |
Standard is what a normal quotation assumes. Precision is available on nominated features and is priced separately, because it needs extra setups, in-process gauging and CMM verification. Call out only the features that need it — blanket-tightening a drawing is the single most common reason a quote comes back expensive.
Why 3004 Aluminum?
Specifying 3004 Aluminum for CNC Polishing 3004 Aluminum is usually about its properties: lightweight with excellent machinability. Tell us the condition you need and we machine to it.
CNC Polishing Tolerances & Surface Finish
Finishing brings 3004 Aluminum to a defined roughness target — from a uniform satin to Ra values as low as 0.05 µm — with controlled, repeatable edge breaks.
The tightest tolerances are reserved for the features your drawing flags as critical. Share your tolerance scheme and we will confirm what is realistic before quoting.
Secondary Operations & Finishing
We complete 3004 Aluminum components with the secondary steps your drawing calls for. We arrange heat treatment, surface treatment, marking and assembly as needed. Tell us the final spec and we will plan the full route so parts arrive ready to use.
Design Tips for CNC Polishing 3004 Aluminum
A few design choices make a real difference to cost and quality. Telling us the target Ra, the cosmetic faces and any masking needs lets us finish 3004 Aluminum efficiently without over-processing. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Polishing Quality & Inspection
Consistent quality comes from disciplined process control. Critical dimensions on 3004 Aluminum parts are checked in-process and verified at final inspection using calibrated instruments and, where required, CMM measurement. Full documentation — dimensional reports, mill certs, FAIR — is available when your programme needs it.
Applications of CNC Polishing 3004 Aluminum
CNC Polishing of 3004 Aluminum supports parts across aerospace, medical, automotive, electronics, semiconductor, energy and general industrial sectors. We scale from one-off prototypes to ongoing production while holding the same quality.
How to Order CNC Polishing 3004 Aluminum
Ordering 3004 Aluminum parts is straightforward. Provide the drawing, material, quantity and any certification needs. Our engineers reply — in English — with feasibility, pricing and a realistic lead time, usually within one business day.
Finishing Options for 3004 Aluminum
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Clear anodise (Type II) | 5–25 µm | Corrosion protection, keeps the natural colour |
| Colour anodise | 10–25 µm | Black, red, blue, gold; add 0.02 mm to close tolerances |
| Hard anodise (Type III) | 25–50 µm | 60–70 HRC surface, grows 50% into the part |
| Chromate / Alodine 1200 | < 1 µm | Conductive, meets MIL-DTL-5541 |
| Powder coat | 60–120 µm | RAL colours, needs 0.3 mm clearance on mating features |
| Deburr / edge break | 0.05–0.3 mm | All parts unless the drawing says otherwise |
| Bead blast | Ra 1.6–3.2 µm | Uniform matt finish, hides tool marks |
| Laser marking | — | Part number, lot code, data matrix |
No drawing yet? Build one in the browser.
Set the metal, dimensions and features, watch the 3D model update as you type, then switch to the 2D sheet to add dimensions and tolerances. Download it or send it straight to us with your RFQ.
What We Need to Quote CNC Polishing 3004 Aluminum
- GeometrySTEP or IGES for the 3D model, plus a PDF drawing if you have tolerance callouts. A dimensioned sketch is enough to start.
- MaterialThe exact 3004 Aluminum grade and condition — temper, heat-treat state or hardness. If you are not sure, tell us the function and we will suggest one.
- QuantityPrototype count and the expected annual volume. Both change how the part is made and therefore what it costs.
- TolerancesWhich features are critical. Everything else runs to our standard tolerance, which is what keeps the price sensible.
- FinishSurface treatment, cosmetic requirements, and any faces that must be masked.
- DocumentsWhether you need a material certificate, dimensional report, FAIR or PPAP with the shipment.
Missing something from the list is not a problem — send what you have. We will come back with the specific questions rather than a generic form.
3004 Aluminum in Other Processes
Related
Send the drawing, the 3004 Aluminum condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Which industries use CNC Polishing 3004 Aluminum parts?
CNC Polishing 3004 Aluminum parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise 3004 Aluminum components are required.
What surface finish is achievable on 3004 Aluminum with CNC Polishing?
Our finishing processes refine 3004 Aluminum surfaces to Ra values as low as 0.05 µm for cosmetic or sealing faces.
Why is 3004 Aluminum a good choice for CNC Polishing?
3004 Aluminum is lightweight with excellent machinability, which makes it well suited to CNC Polishing. We tune the process to the alloy so the finished 3004 Aluminum finishing part meets your dimensional and functional requirements.
Can VT machining make custom 3004 Aluminum parts to my drawing?
Yes. 3004 Aluminum 3004 Aluminum finishing is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
How clean are the edges produced by CNC Polishing on 3004 Aluminum?
Our deburring leaves 3004 Aluminum with a consistent, controlled edge break and burr-free surfaces.
What is CNC Polishing 3004 Aluminum and how is it done?
CNC Polishing 3004 Aluminum refers to cNC polishing refines surfaces to a smooth, reflective finish for cosmetic and functional needs. Applied to 3004 Aluminum — lightweight with excellent machinability — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.