CNC Bending Invar from VT machining delivers precision Invar parts produced to your exact drawing. CNC bending forms sheet metal to precise angles using a programmed press brake and back-gauge, and we tune every parameter to the behaviour of Invar, which is ultra-low thermal expansion.
CNC Bending Capability for Invar
- Angle accuracy ±0.5°
- Back-gauge positioning
- Bend allowance control
- Multi-bend sequencing
How CNC Bending Invar Works
The Invar blank is bent or formed against tooling under CNC-controlled ram travel and back-gauge positioning. Bend allowance and springback are compensated in the program so finished angles hit the print.
We start from your supplied geometry and tolerance scheme. The setup is designed to minimise re-clamping, which protects positional accuracy across features. A first article is verified against the drawing before the balance of the batch is released.
CNC Bending Tolerances & Surface Finish
Formed Invar holds bend angles to about ±0.5° and consistent flange dimensions, with bend allowance compensated for the material and thickness.
The tightest tolerances are reserved for the features your drawing flags as critical. Share your tolerance scheme and we will confirm what is realistic before quoting.
Secondary Operations & Finishing
Most Invar 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.
Design Tips for CNC Bending Invar
Small design adjustments often cut cost and lead time. Consistent bend radii, adequate flange lengths and grain-direction awareness reduce cracking and springback in formed Invar. If you send your model early, we will return practical DFM feedback before you commit to production.
Working with Invar
Invar is ultra-low thermal expansion. We translate those properties into a process plan: the right tooling, speeds, feeds and fixturing for the alloy.
Where the grade, temper or heat-treat condition matters to performance, we confirm it with you and can supply material certificates. Material is procured to recognised standards for consistent, repeatable results.
CNC Bending 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.
Applications of CNC Bending Invar
Invar 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 Bending Invar
Starting your project takes one email. Send your CAD or 2D drawing, the Invar 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.
Other Metals for CNC Bending
Other Processes for Invar
Need CNC Bending Invar for your project? Send your drawing and quantity for a fast quotation.
Request a QuoteFrequently Asked Questions
Can VT machining make custom Invar parts to my drawing?
Yes. Invar Invar forming 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.
What material thickness or size range suits CNC Bending Invar?
We form Invar sheet and plate to your developed flat pattern and bend sequence.
What surface finish is achievable on Invar with CNC Bending?
Surface finish on Invar is controlled to your specification; we confirm the achievable Ra against your callout.
What is the typical lead time and minimum order for CNC Bending Invar?
CNC Bending 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.