CNC Sinker EDM Steel

CNC Sinker EDM Steel from VT machining delivers precision Steel parts produced to your exact drawing. Sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features, and we tune every parameter to the behaviour of Steel, which is strong, economical, widely available carbon/alloy grades.

CNC Sinker EDM Capability for Steel

• Blind cavities & ribs
• Fine surface (VDI grades)
• Tolerance to ±0.005 mm
• Hardened tool steel

How CNC Sinker EDM Steel Works

Material is removed from the Steel workpiece by controlled electrical discharges across a dielectric gap, with no mechanical contact. Flushing, on/off pulse timing and electrode/wire feed are set to balance speed against surface finish.

Programming is driven directly by your 3D model or print. Work-holding, tool selection and the cutting strategy are planned around the critical features and the material before the first chip is cut. First-off inspection confirms the process is centred before production continues.

Secondary Operations & Finishing

Finished Steel 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.

Working with Steel

As a material, Steel is strong, economical, widely available carbon/alloy grades. Our setup reflects the alloy's machinability so the finished part is accurate and free of avoidable defects.

We verify the exact grade and condition before machining, and traceable mill certs are available on request. We can work to your nominated material source or specification when required.

Design Tips for CNC Sinker EDM Steel

We are happy to suggest design tweaks that improve manufacturability. EDM suits sharp internal corners, thin ribs and hardened Steel 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 Steel 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 Steel part, producing fine, controlled surface textures and sharp internal corners impossible to mill.

Exact achievable figures depend on the alloy, the feature size and the part geometry. Tell us which dimensions are critical and we will advise feasibility up front.

Applications of CNC Sinker EDM Steel

Customers order CNC Sinker EDM Steel 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 Steel

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.

Other Metals for CNC Sinker EDM

Other Processes for Steel