CNC Punching Nickel Silver from VT machining delivers precision Nickel Silver parts produced to your exact drawing. CNC turret punching shears holes and form features in sheet metal using programmable tooling for fast, repeatable patterns, and we tune every parameter to the behaviour of Nickel Silver, which is corrosion resistant with a bright silver-white finish.
Process Data for CNC Punching Nickel Silver
| Die clearance per side | 6% of thickness (0.12 mm at 2 mm) |
|---|---|
| Punch force, Ø10 hole in 2 mm | ~28.9 kN (2.9 t) |
| Minimum hole diameter | ≥ 1 × thickness |
Shown for Nickel Silver (C752 / CuNi18Zn20), the most common Nickel Silver grade we see for CNC Punching. Typical values for Nickel Silver (C752 / CuNi18Zn20), Half-hard or spring temper; confirmed on the first part.
CNC Punching Capability for Nickel Silver
- Sheet thickness 0.5–6 mm
- Hole position repeatability ±0.10 mm
- Punch/die clearance set per material
- Louver, emboss and tap-extrude tooling
Nickel Silver Material Data
| Density | 8.73 g/cm³ |
|---|---|
| Tensile strength | 390–710 MPa |
| Yield strength (0.2%) | 170–545 MPa |
| Hardness | 70–160 HV |
| Melting point | 1110 °C |
| Thermal conductivity | 33 W/m·K |
| Thermal expansion | 16.2 ×10⁻⁶/K |
| Electrical conductivity | 6% |
| Machinability (C36000 = 100%) | 20–30% |
| Grades we run | C75200, C77000, C79200 free-cutting |
Published typical values for C75200 (65-18). Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
It is bought for its colour as often as its properties, so cosmetic faces are masked through deburring and handled in gloves from the machine onward.
How CNC Punching Nickel Silver Works
A CNC turret presses hardened punches through the Nickel Silver sheet into matching dies. Punch-to-die clearance is set as a percentage of thickness so the cut edge stays clean and burr is minimal.
Every job begins from your CAD model or 2D drawing. Fixturing and tool paths are planned so the most critical dimensions are produced in the most rigid, repeatable setup. Critical dimensions are checked on the first part and monitored through the run.
Achievable Tolerances for CNC Punching Nickel Silver
| 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.
Working with Nickel Silver
Nickel Silver offers a useful combination of properties: it is corrosion resistant with a bright silver-white finish. Those characteristics shape how we approach punching — from tool and parameter selection to work-holding and coolant.
If your application is sensitive to alloy condition, we agree the specification in writing and document it. Stock is sourced from reputable suppliers so what you order is what you receive.
CNC Punching Tolerances & Surface Finish
Punched Nickel Silver 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.
Design Tips for CNC Punching Nickel Silver
A few design choices make a real difference to cost and quality. Keeping hole-to-edge and hole-to-hole distances at least 1.5–2× thickness avoids distortion and tearing in punched Nickel Silver. If you send your model early, we will return practical DFM feedback before you commit to production.
Applications of CNC Punching Nickel Silver
CNC Punching of Nickel Silver 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.
Typical Nickel Silver Parts for CNC Punching
Illustrative examples of CNC Punching Nickel Silver parts and the callouts that usually drive the process plan. They show the kind of work that fits this process; they are not specific customer orders.
Ventilation panel
- Material
- Nickel Silver
- Size
- 600 × 400 × 1.5 mm
- Key callouts
- 1,800 × Ø5 mm holes, position ±0.10 mm
- Batch
- 900 pcs
Punched with a multi-tool head; laser-cutting 1,800 holes would cost several times as much.
Cable tray section
- Material
- Nickel Silver
- Size
- 1,000 × 150 × 1.5 mm
- Key callouts
- Slot pattern ±0.15 mm
- Batch
- 600 pcs
Nested two-up along the sheet; scrap drops below 12%.
Contact blank
- Material
- Nickel Silver
- Size
- 18 × 9 × 0.3 mm
- Key callouts
- Contour ±0.05 mm, burr-free on the contact face
- Batch
- 50,000 pcs
Punched with the burr deliberately on the non-contact side.
Finishing Options for Nickel Silver
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| 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 Nickel Silver
- 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 Nickel Silver 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.
Other Metals for CNC Punching
Other Processes for Nickel Silver
Send the drawing, the Nickel Silver grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
How clean are the edges produced by CNC Punching on Nickel Silver?
Punched Nickel Silver edges are clean when punch/die clearance is correct; we set clearance to the gauge and can add deburring if specified.
Which industries use CNC Punching Nickel Silver parts?
CNC Punching Nickel Silver parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Nickel Silver components are required.
Does CNC Punching Nickel Silver require dedicated tooling?
Punching uses programmable turret tooling; standard tools cover most patterns, with special tools added for unique forms.
What is CNC Punching Nickel Silver and how is it done?
CNC Punching Nickel Silver refers to cNC turret punching shears holes and form features in sheet metal using programmable tooling for fast, repeatable patterns. Applied to Nickel Silver — corrosion resistant with a bright silver-white finish — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Why is Nickel Silver a good choice for CNC Punching?
Nickel Silver is corrosion resistant with a bright silver-white finish, which makes it well suited to CNC Punching. We tune the process to the alloy so the finished Nickel Silver punching part meets your dimensional and functional requirements.
What material thickness or size range suits CNC Punching Nickel Silver?
Punching suits Nickel Silver sheet roughly 0.5–6 mm thick, with clearance matched to the gauge.