VT machining offers CNC Sinker EDM for D3 Tool Steel (UNS T30403 / 1.2080 / SKD1), typically supplied annealed or hardened. Higher carbon than D2 for maximum wear but lower toughness.
CNC Sinker EDM Notes for D3 Tool Steel
Cavities and blind forms in D3 Tool Steel are sunk with graphite or copper electrodes, directly in the hardened state.
Process Data for CNC Sinker EDM D3 Tool Steel
| Electrode | Graphite (roughing) / copper (fine finish) |
|---|---|
| Relative removal rate | High (vs tool steel = medium) |
| Best finish | VDI 12-18 (Ra 0.4-0.8 µm) |
Typical values for D3 Tool Steel, Annealed or hardened; confirmed on the first part.
Full material data for D3 Tool Steel (UNS T30403 / 1.2080 / SKD1) is on the CNC Wire EDM D3 Tool Steel page.
More on CNC Sinker EDM Alloy Steel
Finishing options, quality documentation and general cnc sinker edm guidance for all alloy steel grades are on our CNC Sinker EDM Alloy Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Sinker EDM D3 Tool Steel
Send a STEP/IGES model or PDF drawing, confirm D3 Tool Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
D3 Tool Steel in Other Processes
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Send the drawing, the D3 Tool Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is CNC Sinker EDM D3 Tool Steel and how is it done?
CNC Sinker EDM D3 Tool Steel refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. Applied to D3 Tool Steel — wear-resistant and hardenable for tooling — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What tolerances can you hold for CNC Sinker EDM D3 Tool Steel?
Achievable tolerances for D3 Tool Steel EDM machining depend on the alloy, geometry and feature size. EDM holds tolerances to around ±0.002 mm with no cutting force on the part. Exact figures are confirmed against your drawing callouts.
Can VT machining make custom D3 Tool Steel parts to my drawing?
Yes. D3 Tool Steel 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 the typical lead time and minimum order for CNC Sinker EDM D3 Tool Steel?
CNC Sinker EDM prototypes for D3 Tool Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Does CNC Sinker EDM D3 Tool Steel require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.
What surface finish is achievable on D3 Tool Steel with CNC Sinker EDM?
Surface finish on D3 Tool Steel is controlled to your specification; we confirm the achievable Ra against your callout.