VT machining offers CNC Sinker EDM for S136 Mold Steel (Uddeholm S136 / ~420 mod / 1.2083), typically supplied annealed or hardened. Stainless mold steel for corrosive resins and mirror finish.
CNC Sinker EDM Notes for S136 Mold Steel
Cavities and blind forms in S136 Mold Steel are sunk with graphite or copper electrodes, directly in the hardened state.
Process Data for CNC Sinker EDM S136 Mold 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 S136 Mold Steel, Annealed or hardened; confirmed on the first part.
Full material data for S136 Mold Steel (Uddeholm S136 / ~420 mod / 1.2083) is on the CNC Wire EDM S136 Mold 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 S136 Mold Steel
Send a STEP/IGES model or PDF drawing, confirm S136 Mold Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
S136 Mold Steel in Other Processes
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Send the drawing, the S136 Mold 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 S136 Mold Steel and how is it done?
CNC Sinker EDM S136 Mold Steel refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. Applied to S136 Mold Steel — mold-grade, polishable and hardenable — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Can you EDM-machine hardened S136 Mold Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult S136 Mold Steel can be machined to fine detail and tight tolerance without distortion.
What tolerances can you hold for CNC Sinker EDM S136 Mold Steel?
Achievable tolerances for S136 Mold 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.
What surface finish is achievable on S136 Mold Steel with CNC Sinker EDM?
Surface finish on S136 Mold Steel is controlled to your specification; we confirm the achievable Ra against your callout.
How clean are the edges produced by CNC Sinker EDM on S136 Mold Steel?
Machined S136 Mold Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Does CNC Sinker EDM S136 Mold Steel require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.