CNC Sinker EDM Spring Steel is a core capability at VT machining. We combine controlled EDM machining with material-aware setup for Spring Steel — an alloy that is high yield strength and elastic recovery — to produce parts that meet your specification first time.
CNC Sinker EDM Capability for Spring Steel
- Blind cavities & ribs
- Fine surface (VDI grades)
- Tolerance to ±0.005 mm
- Hardened tool steel
How CNC Sinker EDM Spring Steel Works
Material is removed from the Spring 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.
We start from your supplied geometry and tolerance scheme. The setup is designed to minimise re-clamping, which protects positional accuracy across features. A first article is verified against the drawing before the balance of the batch is released.
Working with Spring Steel
Spring Steel is high yield strength and elastic recovery. We translate those properties into a process plan: the right tooling, speeds, feeds and fixturing for the alloy.
Where the grade, temper or heat-treat condition matters to performance, we confirm it with you and can supply material certificates. Material is procured to recognised standards for consistent, repeatable results.
Secondary Operations & Finishing
Most Spring Steel parts need some finishing, which we manage in-house or through vetted partners. Options include deburring and edge-breaking, heat treatment, surface grinding, polishing, and plating or anodising for corrosion resistance and appearance. Give us the finished-part requirement and we will sequence every operation correctly.
CNC Sinker EDM Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Spring Steel part, producing fine, controlled surface textures and sharp internal corners impossible to mill.
The tightest tolerances are reserved for the features your drawing flags as critical. Share your tolerance scheme and we will confirm what is realistic before quoting.
CNC Sinker EDM Quality & Inspection
Quality is built in, not inspected on. We monitor key features during the run and confirm them at final inspection, with CMM verification available for tight tolerances. We provide the inspection and traceability records your quality system requires.
Design Tips for CNC Sinker EDM Spring Steel
Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened Spring 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.
Applications of CNC Sinker EDM Spring Steel
Spring Steel parts made this way are found throughout aerospace, medical, automotive, electronics and industrial equipment. Prototype, bridge and production volumes are all welcome.
How to Order CNC Sinker EDM Spring Steel
Starting your project takes one email. Send your CAD or 2D drawing, the Spring Steel grade and condition, the quantity and any finish or inspection requirements. We respond quickly with price, lead time and any DFM notes, in clear English.
Other Metals for CNC Sinker EDM
Other Processes for Spring Steel
Need CNC Sinker EDM Spring Steel for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
Can you EDM-machine hardened Spring Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult Spring Steel can be machined to fine detail and tight tolerance without distortion.
What surface finish is achievable on Spring Steel with CNC Sinker EDM?
Surface finish on Spring Steel is controlled to your specification; we confirm the achievable Ra against your callout.
Does CNC Sinker EDM Spring Steel require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.
Can VT machining make custom Spring Steel parts to my drawing?
Yes. Spring Steel Spring 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.