CNC EDM Drilling 321 Stainless Steel is part of VT machining's grade-specific capability. 321 Stainless Steel is corrosion resistant, strong and hygienic, and we combine controlled EDM machining with material-aware setup to produce parts that meet your specification.
CNC EDM Drilling Capability for 321 Stainless Steel
- Austenitic/martensitic grades
- Corrosion resistant
- Tolerance to ±0.01 mm
- Typical hardness 70–200 HB (annealed)
Machining 321 Stainless Steel with CNC EDM Drilling
When EDM machining 321 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 321 Stainless Steel mean predictable cycle times and stable, repeatable results.
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.
CNC EDM Drilling Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the 321 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.
Design Tips for CNC EDM Drilling 321 Stainless Steel
Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened 321 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.
Secondary Operations & Finishing
Most 321 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.
Why 321 Stainless Steel?
Customers select 321 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.
Applications of CNC EDM Drilling 321 Stainless Steel
321 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 321 Stainless Steel
Starting your project takes one email. Send your CAD or 2D drawing, the 321 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.
321 Stainless Steel in Other Processes
Related
Need CNC EDM Drilling 321 Stainless Steel for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC EDM Drilling 321 Stainless Steel?
CNC EDM Drilling prototypes for 321 Stainless 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.
What surface finish is achievable on 321 Stainless Steel with CNC EDM Drilling?
Surface finish on 321 Stainless Steel is controlled to your specification; we confirm the achievable Ra against your callout.
Why is 321 Stainless Steel a good choice for CNC EDM Drilling?
321 Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC EDM Drilling. We tune the process to the alloy so the finished 321 Stainless Steel EDM machining part meets your dimensional and functional requirements.
What tolerances can you hold for CNC EDM Drilling 321 Stainless Steel?
Achievable tolerances for 321 Stainless 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.