CNC Honing Invar

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

CNC Honing Capability for Invar

• Bore Ra to 0.1 µm
• Cross-hatch pattern
• Roundness within 0.002 mm
• Hydraulic-bore finishing

How CNC Honing Invar Works

Abrasive media or tooling refine the Invar surface in controlled stages, removing the previous step's marks until the target roughness and edge condition are reached.

Every job begins from your CAD model or 2D drawing. Fixturing and tool paths are planned so the most critical dimensions are produced in the most rigid, repeatable setup. Critical dimensions are checked on the first part and monitored through the run.

Secondary Operations & Finishing

We complete Invar components with the secondary steps your drawing calls for. We arrange heat treatment, surface treatment, marking and assembly as needed. Tell us the final spec and we will plan the full route so parts arrive ready to use.

CNC Honing Tolerances & Surface Finish

Finishing brings Invar to a defined roughness target — from a uniform satin to Ra values as low as 0.05 µm — with controlled, repeatable edge breaks.

Final tolerances are governed by the material's behaviour, wall thickness and overall stiffness. We give honest DFM feedback if a callout would be costly or better achieved another way.

Working with Invar

Invar offers a useful combination of properties: it is ultra-low thermal expansion. Those characteristics shape how we approach finishing — from tool and parameter selection to work-holding and coolant.

If your application is sensitive to alloy condition, we agree the specification in writing and document it. Stock is sourced from reputable suppliers so what you order is what you receive.

Design Tips for CNC Honing Invar

A few design choices make a real difference to cost and quality. Telling us the target Ra, the cosmetic faces and any masking needs lets us finish Invar efficiently without over-processing. If you send your model early, we will return practical DFM feedback before you commit to production.

CNC Honing Quality & Inspection

Consistent quality comes from disciplined process control. Critical dimensions on Invar parts are checked in-process and verified at final inspection using calibrated instruments and, where required, CMM measurement. Full documentation — dimensional reports, mill certs, FAIR — is available when your programme needs it.

Applications of CNC Honing Invar

CNC Honing of Invar supports parts across aerospace, medical, automotive, electronics, semiconductor, energy and general industrial sectors. We scale from one-off prototypes to ongoing production while holding the same quality.

How to Order CNC Honing Invar

Ordering Invar parts is straightforward. Provide the drawing, material, quantity and any certification needs. Our engineers reply — in English — with feasibility, pricing and a realistic lead time, usually within one business day.

Other Metals for CNC Honing

Other Processes for Invar