CNC Deburring Invar from VT machining delivers precision Invar parts produced to your exact drawing. Automated deburring removes sharp edges and burrs for safe handling and consistent edge quality, and we tune every parameter to the behaviour of Invar, which is ultra-low thermal expansion.
Process Data for CNC Deburring Invar
| Recommended method | Tool-path chamfer + vibratory or electropolish |
|---|---|
| Typical edge break | 0.1-0.3 mm or per drawing |
Shown for Invar 36, the most common Invar grade we see for CNC Deburring. Typical values for Invar 36, Annealed; confirmed on the first part.
CNC Deburring Capability for Invar
- Edge-break control
- Burr-free edges
- Consistent radius
- High-volume capable
Invar material properties, finishing options and grade notes are on our CNC Polishing Invar page.
How CNC Deburring 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.
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.
Achievable Tolerances for CNC Deburring Invar
| Feature | Standard | Precision |
|---|---|---|
| Surface roughness | Ra 0.8 µm | Ra 0.05 µm |
| Edge break | 0.1–0.3 mm | 0.05 ±0.02 mm |
| Material removed | 0.02 mm | 0.005 mm |
| Bore roundness after honing | 0.005 mm | 0.002 mm |
| Cross-hatch angle | 45° ±10° | 45° ±5° |
| Cosmetic grade | uniform satin | mirror, no visible lines |
| Masking of datum faces | on request | standard |
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 Deburring 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.
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.
Design Tips for CNC Deburring Invar
We are happy to suggest design tweaks that improve manufacturability. 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.
Applications of CNC Deburring Invar
Customers order CNC Deburring 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.
Typical Invar Parts for CNC Deburring
Illustrative examples of CNC Deburring Invar parts and the callouts that usually drive the process plan. They show the kind of work that fits this process; they are not specific customer orders.
Mirror-polished insert
- Material
- Invar
- Size
- 80 × 50 mm cavity
- Key callouts
- Ra 0.05 µm, SPI A2
- Batch
- 60 pcs
Polished in five abrasive stages; skipping one leaves scratches the next cannot remove.
Sealing face
- Material
- Invar
- Size
- Ø60 mm face
- Key callouts
- Ra 0.2 µm, flatness 0.005 mm
- Batch
- 1,000 pcs
Lapped after grinding; the seal spec is a roughness number, not a dimension.
Hydraulic bore
- Material
- Invar
- Size
- Ø32 × 200 mm
- Key callouts
- Ra 0.4 µm cross-hatch 45°, roundness 0.003 mm
- Batch
- 600 pcs
Honed in three stages; the cross-hatch is what holds the oil film.
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 Deburring Invar
- 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 Invar 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.
Other Metals for CNC Deburring
Other Processes for Invar
Send the drawing, the Invar grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
How clean are the edges produced by CNC Deburring on Invar?
Our deburring leaves Invar with a consistent, controlled edge break and burr-free surfaces.
What material thickness or size range suits CNC Deburring Invar?
We machine Invar across a broad size range; share your part envelope for confirmation.
Does CNC Deburring Invar require dedicated tooling?
Most Invar finishing work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What is the typical lead time and minimum order for CNC Deburring Invar?
CNC Deburring 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.
What is CNC Deburring Invar and how is it done?
CNC Deburring Invar refers to automated deburring removes sharp edges and burrs for safe handling and consistent edge quality. 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.