CNC Sinker EDM Zamak 5 Zinc Alloy is part of VT machining's grade-specific capability. Zamak 5 Zinc Alloy is dimensionally stable and easy to finish, and we combine controlled EDM machining with material-aware setup to produce parts that meet your specification.
CNC Sinker EDM Capability for Zamak 5 Zinc Alloy
- Die-cast + machined
- Good dimensional stability
- Tolerance to ±0.02 mm
- Plating-ready
Machining Zamak 5 Zinc Alloy with CNC Sinker EDM
Zamak 5 Zinc Alloy behaves predictably under CNC Sinker EDM once parameters are dialled in: machinability is good; commonly die-cast then machined to final tolerance, and we tune the operation accordingly.
We hold reference parameters for this grade, so repeat orders of Zamak 5 Zinc Alloy run consistently from one batch to the next.
Achievable Tolerances for CNC Sinker EDM Zamak 5 Zinc Alloy
| Feature | Standard | Precision |
|---|---|---|
| Profile dimension | ±0.010 mm | ±0.002 mm |
| Internal corner radius | 0.15 mm | 0.05 mm |
| Taper control over 50 mm | 0.02 mm | 0.005 mm |
| Surface finish (skim passes) | Ra 0.8 µm | Ra 0.2 µm |
| Recast layer | 10 µm | 2 µm (fine skim) |
| Start-hole diameter | 1.0 mm | 0.25 mm |
| Workpiece hardness | no limit (conductive) | no limit (conductive) |
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 Zamak 5 Zinc Alloy?
Zamak 5 Zinc Alloy is chosen when a part needs what this grade offers — it is dimensionally stable and easy to finish. We confirm the grade and any temper or heat-treat condition with you before machining.
Secondary Operations & Finishing
Finished Zamak 5 Zinc Alloy 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.
Design Tips for CNC Sinker EDM Zamak 5 Zinc Alloy
We are happy to suggest design tweaks that improve manufacturability. EDM suits sharp internal corners, thin ribs and hardened Zamak 5 Zinc Alloy that cannot be milled; allowing a small corner radius where possible speeds the cut. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Sinker EDM 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 Zamak 5 Zinc Alloy part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
CNC Sinker EDM Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Zamak 5 Zinc Alloy part, producing fine, controlled surface textures and sharp internal corners impossible to mill.
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 Sinker EDM Zamak 5 Zinc Alloy
Customers order CNC Sinker EDM Zamak 5 Zinc Alloy 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 Sinker EDM Zamak 5 Zinc Alloy
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.
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 Sinker EDM Zamak 5 Zinc Alloy
- 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 Zamak 5 Zinc Alloy 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.
Zamak 5 Zinc Alloy in Other Processes
Related
Send the drawing, the Zamak 5 Zinc Alloy 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 Sinker EDM Zamak 5 Zinc Alloy parts?
CNC Sinker EDM Zamak 5 Zinc Alloy parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Zamak 5 Zinc Alloy components are required.
Does CNC Sinker EDM Zamak 5 Zinc Alloy require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.
Can you EDM-machine hardened Zamak 5 Zinc Alloy?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult Zamak 5 Zinc Alloy can be machined to fine detail and tight tolerance without distortion.
Can VT machining make custom Zamak 5 Zinc Alloy parts to my drawing?
Yes. Zamak 5 Zinc Alloy Zamak 5 Zinc Alloy EDM machining 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.
What is CNC Sinker EDM Zamak 5 Zinc Alloy and how is it done?
CNC Sinker EDM Zamak 5 Zinc Alloy refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. Applied to Zamak 5 Zinc Alloy — dimensionally stable and easy to finish — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.