CNC Punching 7075 Aluminum is part of VT machining's grade-specific capability. 7075 Aluminum is lightweight with excellent machinability, and we combine controlled punching with material-aware setup to produce parts that meet your specification.
CNC Punching Capability for 7075 Aluminum
- Lightweight (~2.7 g/cm³)
- Excellent machinability
- Tolerance to ±0.01 mm
- Anodising-ready
7075 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 7075 Aluminum with CNC Punching
7075 Aluminum behaves predictably under CNC Punching once parameters are dialled in: machinability is excellent; high cutting speeds and superb finishes achievable, and we tune the operation accordingly.
We hold reference parameters for this grade, so repeat orders of 7075 Aluminum run consistently from one batch to the next.
Achievable Tolerances for CNC Punching 7075 Aluminum
| Feature | Standard | Precision |
|---|---|---|
| Hole position across sheet | ±0.15 mm | ±0.10 mm |
| Hole diameter | ±0.10 mm | ±0.05 mm |
| Overall blank size | ±0.20 mm | ±0.10 mm |
| Minimum hole | 1.0 × thickness | 0.8 × thickness |
| Hole-to-edge distance | 2.0 × thickness | 1.5 × thickness |
| Burr height | 0.08 mm | 0.03 mm (deburred) |
| Sheet thickness range | 0.5–6.0 mm | 0.5–3.0 mm |
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.
Design Tips for CNC Punching 7075 Aluminum
We are happy to suggest design tweaks that improve manufacturability. Keeping hole-to-edge and hole-to-hole distances at least 1.5–2× thickness avoids distortion and tearing in punched 7075 Aluminum. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Punching Quality & Inspection
We control quality throughout the process, not just at the end. In-process checks plus final inspection — including CMM where specified — keep every 7075 Aluminum part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
Secondary Operations & Finishing
Finished 7075 Aluminum parts can move straight into secondary operations under one roof. Typical add-ons are deburring, passivation, anodising, plating, blasting, polishing and laser marking. We coordinate the whole chain so you receive complete, inspection-ready parts.
Why 7075 Aluminum?
7075 Aluminum is chosen when a part needs what this grade offers — it is lightweight with excellent machinability. We confirm the grade and any temper or heat-treat condition with you before machining.
CNC Punching Tolerances & Surface Finish
Punched 7075 Aluminum holds hole-position repeatability around ±0.10 mm across the sheet, with consistent hole quality when punch/die clearance is matched to the gauge.
Final tolerances are governed by the material's behaviour, wall thickness and overall stiffness. We give honest DFM feedback if a callout would be costly or better achieved another way.
Applications of CNC Punching 7075 Aluminum
Customers order CNC Punching 7075 Aluminum components for everything from instrumentation to structural and functional assemblies. Whether you need a single prototype or recurring production volume, the same process discipline applies.
How to Order CNC Punching 7075 Aluminum
Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.
Finishing Options for 7075 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 Punching 7075 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 7075 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.
7075 Aluminum in Other Processes
Related
Send the drawing, the 7075 Aluminum condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What tolerances can you hold for CNC Punching 7075 Aluminum?
Achievable tolerances for 7075 Aluminum punching depend on the alloy, geometry and feature size. Punching holds hole-position repeatability to around ±0.10 mm. Exact figures are confirmed against your drawing callouts.
Which industries use CNC Punching 7075 Aluminum parts?
CNC Punching 7075 Aluminum parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise 7075 Aluminum components are required.
Why is 7075 Aluminum a good choice for CNC Punching?
7075 Aluminum is lightweight with excellent machinability, which makes it well suited to CNC Punching. We tune the process to the alloy so the finished 7075 Aluminum punching part meets your dimensional and functional requirements.
What is CNC Punching 7075 Aluminum and how is it done?
CNC Punching 7075 Aluminum refers to cNC turret punching shears holes and form features in sheet metal using programmable tooling for fast, repeatable patterns. Applied to 7075 Aluminum — lightweight with excellent machinability — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Can VT machining make custom 7075 Aluminum parts to my drawing?
Yes. 7075 Aluminum 7075 Aluminum punching 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.