CNC Wire EDM Invar

CNC Wire EDM Invar is a core capability at VT machining. We combine controlled EDM machining with material-aware setup for Invar — an alloy that is ultra-low thermal expansion — to produce parts that meet your specification first time.

CNC Wire EDM Capability for Invar

• Kerf from 0.1 mm
• Tolerance to ±0.002 mm
• Hardened & exotic alloys
• Sharp internal corners

How CNC Wire EDM Invar Works

Material is removed from the Invar workpiece by controlled electrical discharges across a dielectric gap, with no mechanical contact. Flushing, on/off pulse timing and electrode/wire feed are set to balance speed against surface finish.

Programming is driven directly by your 3D model or print. Work-holding, tool selection and the cutting strategy are planned around the critical features and the material before the first chip is cut. First-off inspection confirms the process is centred before production continues.

CNC Wire EDM Tolerances & Surface Finish

EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Invar 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

Finished Invar parts can move straight into secondary operations under one roof. Typical add-ons are deburring, passivation, anodising, plating, blasting, polishing and laser marking. We coordinate the whole chain so you receive complete, inspection-ready parts.

Working with Invar

As a material, Invar is ultra-low thermal expansion. Our setup reflects the alloy's machinability so the finished part is accurate and free of avoidable defects.

We verify the exact grade and condition before machining, and traceable mill certs are available on request. We can work to your nominated material source or specification when required.

CNC Wire EDM Quality & Inspection

We control quality throughout the process, not just at the end. In-process checks plus final inspection — including CMM where specified — keep every Invar part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.

Design Tips for CNC Wire EDM Invar

We are happy to suggest design tweaks that improve manufacturability. EDM suits sharp internal corners, thin ribs and hardened Invar 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 Wire EDM Invar

Customers order CNC Wire EDM Invar components for everything from instrumentation to structural and functional assemblies. Whether you need a single prototype or recurring production volume, the same process discipline applies.

How to Order CNC Wire EDM Invar

Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.

Other Metals for CNC Wire EDM

Other Processes for Invar