VT machining provides CNC EDM Drilling 440C Stainless Steel for customers who need accurate, repeatable 440C Stainless Steel components. The machinability of 440C Stainless Steel is moderate; work-hardens, so positive-rake tooling and steady feeds are used to avoid glazing, so we set the operation up specifically for this grade.
CNC EDM Drilling Capability for 440C Stainless Steel
- Austenitic/martensitic grades
- Corrosion resistant
- Tolerance to ±0.01 mm
- Typical hardness 70–200 HB (annealed)
Machining 440C Stainless Steel with CNC EDM Drilling
When EDM machining 440C 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 440C Stainless Steel mean predictable cycle times and stable, repeatable results.
Why 440C Stainless Steel?
Customers select 440C 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 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 440C 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 440C Stainless Steel
Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened 440C 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 440C 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 440C Stainless Steel
440C 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 440C Stainless Steel
Starting your project takes one email. Send your CAD or 2D drawing, the 440C 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.
440C Stainless Steel in Other Processes
Related
Need CNC EDM Drilling 440C Stainless Steel for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
What is CNC EDM Drilling 440C Stainless Steel and how is it done?
CNC EDM Drilling 440C Stainless Steel refers to fast-hole EDM drilling produces small, deep holes in hard metals, including starter holes for wire EDM. Applied to 440C Stainless Steel — corrosion resistant, strong and hygienic — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What tolerances can you hold for CNC EDM Drilling 440C Stainless Steel?
Achievable tolerances for 440C 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.
How clean are the edges produced by CNC EDM Drilling on 440C Stainless Steel?
Machined 440C Stainless Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Can you EDM-machine hardened 440C Stainless Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult 440C Stainless Steel can be machined to fine detail and tight tolerance without distortion.