VT machining specialises in CNC Sinker EDM Monel K500. Because Monel K500 is strong and highly corrosion-resistant in marine/acid service, and its machinability is moderate; work-hardens, steady feeds required, we plan each job around the grade to protect accuracy and surface quality.
CNC Sinker EDM Capability for Monel K500
- Marine/acid corrosion resistant
- High strength
- Tolerance to ±0.01 mm
- Monel family
Monel K500 Material Data
| Density | 8.80 g/cm³ |
|---|---|
| Tensile strength | 550–690 MPa |
| Yield strength (0.2%) | 240–345 MPa |
| Hardness | 110–150 HB |
| Melting point | 1300–1350 °C |
| Thermal conductivity | 21.8 W/m·K |
| Thermal expansion | 13.9 ×10⁻⁶/K |
| Electrical conductivity | 3.4% |
| Machinability (C36000 = 100%) | 30% |
| Grades we run | Monel 400, Monel K-500, Monel R-405 (free-machining) |
Published typical values for Monel 400. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Work-hardens like stainless but tougher. If the drawing allows R-405, cycle time drops noticeably for the same corrosion performance.
Machining Monel K500 with CNC Sinker EDM
When EDM machining Monel K500, machinability is moderate; work-hardens, steady feeds required. Our process plan reflects this so the finished part holds its tolerances without distortion or poor finish.
Documented parameters for Monel K500 mean predictable cycle times and stable, repeatable results.
Achievable Tolerances for CNC Sinker EDM Monel K500
| Feature | Standard | Precision |
|---|---|---|
| Profile dimension | ±0.010 mm | ±0.002 mm |
| Internal corner radius | 0.15 mm | 0.05 mm |
| Taper control over 50 mm | 0.02 mm | 0.005 mm |
| Surface finish (skim passes) | Ra 0.8 µm | Ra 0.2 µm |
| Recast layer | 10 µm | 2 µm (fine skim) |
| Start-hole diameter | 1.0 mm | 0.25 mm |
| Workpiece hardness | no limit (conductive) | no limit (conductive) |
Standard is what a normal quotation assumes. Precision is available on nominated features and is priced separately, because it needs extra setups, in-process gauging and CMM verification. Call out only the features that need it — blanket-tightening a drawing is the single most common reason a quote comes back expensive.
CNC Sinker EDM Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Monel K500 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.
Secondary Operations & Finishing
Most Monel K500 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 Monel K500?
Customers select Monel K500 for CNC Sinker EDM because it is strong and highly corrosion-resistant in marine/acid service. We handle grade verification and any required heat treatment or finishing.
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 Monel K500
Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened Monel K500 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 Monel K500
Monel K500 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 Monel K500
Starting your project takes one email. Send your CAD or 2D drawing, the Monel K500 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.
Finishing Options for Monel K500
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Deburr / edge break | 0.05–0.3 mm | All parts unless the drawing says otherwise |
| Bead blast | Ra 1.6–3.2 µm | Uniform matt finish, hides tool marks |
| Laser marking | — | Part number, lot code, data matrix |
No drawing yet? Build one in the browser.
Set the metal, dimensions and features, watch the 3D model update as you type, then switch to the 2D sheet to add dimensions and tolerances. Download it or send it straight to us with your RFQ.
What We Need to Quote CNC Sinker EDM Monel K500
- GeometrySTEP or IGES for the 3D model, plus a PDF drawing if you have tolerance callouts. A dimensioned sketch is enough to start.
- MaterialThe exact Monel K500 grade and condition — temper, heat-treat state or hardness. If you are not sure, tell us the function and we will suggest one.
- QuantityPrototype count and the expected annual volume. Both change how the part is made and therefore what it costs.
- TolerancesWhich features are critical. Everything else runs to our standard tolerance, which is what keeps the price sensible.
- FinishSurface treatment, cosmetic requirements, and any faces that must be masked.
- DocumentsWhether you need a material certificate, dimensional report, FAIR or PPAP with the shipment.
Missing something from the list is not a problem — send what you have. We will come back with the specific questions rather than a generic form.
Monel K500 in Other Processes
Related
Send the drawing, the Monel K500 condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Which industries use CNC Sinker EDM Monel K500 parts?
CNC Sinker EDM Monel K500 parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Monel K500 components are required.
Why is Monel K500 a good choice for CNC Sinker EDM?
Monel K500 is strong and highly corrosion-resistant in marine/acid service, which makes it well suited to CNC Sinker EDM. We tune the process to the alloy so the finished Monel K500 EDM machining part meets your dimensional and functional requirements.
What is CNC Sinker EDM Monel K500 and how is it done?
CNC Sinker EDM Monel K500 refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. Applied to Monel K500 — strong and highly corrosion-resistant in marine/acid service — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What is the typical lead time and minimum order for CNC Sinker EDM Monel K500?
CNC Sinker EDM prototypes for Monel K500 can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.