Wire EDM of 304 stainless is an excellent alternative to milling for complex profiles, as EDM is unaffected by work-hardening. The material cuts predictably with good surface finish.
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.005 mm |
| Surface Finish | Ra 0.2-0.8 μm |
| Cutting Speed | Moderate — lower conductivity than aluminum |
| Feed Rate | Auto-tuned by EDM controller |
| Tooling Recommendations | Brass wire 0.20-0.25mm. Coated wire for faster roughing. |
No work-hardening concern with EDM
Multiple skim cuts for mirror finish
Deionized water dielectric standard
Good choice for intricate medical device features
Medical device profiles
Surgical instrument features
Complex valve seats
Stencils and screens
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