CNC Thread Grinding Invar from VT machining delivers precision Invar parts produced to your exact drawing. Thread grinding produces precise, high-finish threads on hardened parts and lead screws, and we tune every parameter to the behaviour of Invar, which is ultra-low thermal expansion.
CNC Thread Grinding Capability for Invar
- Pitch accuracy to grade 3
- Hardened-part threading
- Lead screws & gauges
- Fine surface finish
How CNC Thread Grinding Invar Works
An abrasive wheel removes a fine, controlled layer from the Invar part. Wheel specification, dressing interval, infeed and coolant are matched to the alloy's hardness so the surface is not burned or left with residual stress.
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.
CNC Thread Grinding 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.
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.
Design Tips for CNC Thread Grinding Invar
A few design choices make a real difference to cost and quality. Allowing adequate grind stock, specifying realistic flatness over the true datum, and relieving corners help us hit tight tolerances on Invar efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.
Working with Invar
Invar offers a useful combination of properties: it is ultra-low thermal expansion. Those characteristics shape how we approach grinding — 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.
CNC Thread Grinding Tolerances & Surface Finish
Ground Invar reaches single-micron tolerances on size, flatness and parallelism, with surface finishes down to Ra 0.1–0.4 µm — and a near-mirror finish on suitable alloys.
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.
Applications of CNC Thread Grinding Invar
CNC Thread Grinding 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 Thread Grinding 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 Thread Grinding
Other Processes for Invar
Need CNC Thread Grinding Invar for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
Why is Invar a good choice for CNC Thread Grinding?
Invar is ultra-low thermal expansion, which makes it well suited to CNC Thread Grinding. We tune the process to the alloy so the finished Invar grinding part meets your dimensional and functional requirements.
What surface finish is achievable on Invar with CNC Thread Grinding?
Grinding can take Invar to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.
Which industries use CNC Thread Grinding Invar parts?
CNC Thread Grinding Invar parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Invar components are required.
What is CNC Thread Grinding Invar and how is it done?
CNC Thread Grinding Invar refers to thread grinding produces precise, high-finish threads on hardened parts and lead screws. Applied to Invar — ultra-low thermal expansion — 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 Thread Grinding Invar?
CNC Thread Grinding prototypes for Invar can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Can VT machining make custom Invar parts to my drawing?
Yes. Invar Invar grinding is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.