CNC EDM Drilling 904L Stainless Steel

VT machining specialises in CNC EDM Drilling 904L Stainless Steel. Because 904L Stainless Steel is corrosion resistant, strong and hygienic, and its machinability is moderate; work-hardens, so positive-rake tooling and steady feeds are used to avoid glazing, we plan each job around the grade to protect accuracy and surface quality.

CNC EDM Drilling Capability for 904L Stainless Steel

• Austenitic/martensitic grades
• Corrosion resistant
• Tolerance to ±0.01 mm
• Typical hardness 70–200 HB (annealed)

Machining 904L Stainless Steel with CNC EDM Drilling

When EDM machining 904L Stainless Steel, machinability is moderate; work-hardens, so positive-rake tooling and steady feeds are used to avoid glazing. Our process plan reflects this so the finished part holds its tolerances without distortion or poor finish.

Documented parameters for 904L Stainless Steel mean predictable cycle times and stable, repeatable results.

Design Tips for CNC EDM Drilling 904L Stainless Steel

Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened 904L Stainless 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.

Why 904L Stainless Steel?

Customers select 904L Stainless Steel for CNC EDM Drilling because it is corrosion resistant, strong and hygienic. We handle grade verification and any required heat treatment or finishing.

CNC EDM Drilling Tolerances & Surface Finish

EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the 904L Stainless 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.

CNC EDM Drilling 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.

Secondary Operations & Finishing

Most 904L Stainless 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.

Applications of CNC EDM Drilling 904L Stainless Steel

904L Stainless 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 EDM Drilling 904L Stainless Steel

Starting your project takes one email. Send your CAD or 2D drawing, the 904L Stainless 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.

904L Stainless Steel in Other Processes

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