VT machining provides CNC Honing Tungsten for customers who need accurate, repeatable Tungsten components. Because Tungsten is extreme hardness, density and heat resistance, we adapt the process to suit — controlling the variables that matter for this alloy.
CNC Honing Capability for Tungsten
- Bore Ra to 0.1 µm
- Cross-hatch pattern
- Roundness within 0.002 mm
- Hydraulic-bore finishing
Tungsten Material Data
| Density | 19.25 g/cm³ |
|---|---|
| Tensile strength | 750–1500 MPa |
| Yield strength (0.2%) | 550 MPa |
| Hardness | 350–500 HV |
| Melting point | 3422 °C |
| Thermal conductivity | 173 W/m·K |
| Thermal expansion | 4.5 ×10⁻⁶/K |
| Electrical conductivity | 31% |
| Machinability (C36000 = 100%) | grind / EDM only |
| Grades we run | Pure W (99.95%), W-Ni-Fe heavy alloy (17.0–18.5 g/cm³), WC-Co |
Published typical values for Pure W / W-Ni-Fe. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Conventional cutting is not on the table for pure tungsten. Features are wire-EDM cut and ground; expect longer lead time than any other metal on the list.
How CNC Honing Tungsten Works
Abrasive media or tooling refine the Tungsten 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 Honing Tungsten
| 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.
Working with Tungsten
As a material, Tungsten is extreme hardness, density and heat resistance. 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.
Secondary Operations & Finishing
Finished Tungsten 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.
CNC Honing 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 Tungsten part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
Design Tips for CNC Honing Tungsten
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 Tungsten efficiently without over-processing. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Honing Tolerances & Surface Finish
Finishing brings Tungsten 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.
Applications of CNC Honing Tungsten
Customers order CNC Honing Tungsten 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 Honing Tungsten
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.
Parts We Have Run in Tungsten
Three representative CNC Honing Tungsten jobs, with the callouts that actually drove the process plan. Yours will differ — these are here so you can judge whether your part is in our range before you spend time on an RFQ.
Mirror-polished insert
- Material
- Tungsten
- 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
- Tungsten
- 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
- Tungsten
- 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.
Finishing Options for Tungsten
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Deburr / edge break | 0.05–0.3 mm | All parts unless the drawing says otherwise |
| Bead blast | Ra 1.6–3.2 µm | Uniform matt finish, hides tool marks |
| Laser marking | — | Part number, lot code, data matrix |
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 Honing Tungsten
- 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 Tungsten 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 Honing
Other Processes for Tungsten
Send the drawing, the Tungsten grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
Which industries use CNC Honing Tungsten parts?
CNC Honing Tungsten parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Tungsten components are required.
Can VT machining make custom Tungsten parts to my drawing?
Yes. Tungsten Tungsten finishing 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 surface finish is achievable on Tungsten with CNC Honing?
Our finishing processes refine Tungsten surfaces to Ra values as low as 0.05 µm for cosmetic or sealing faces.
What tolerances can you hold for CNC Honing Tungsten?
Achievable tolerances for Tungsten finishing depend on the alloy, geometry and feature size. We hold tight, repeatable tolerances appropriate to the feature and material. Exact figures are confirmed against your drawing callouts.
Why is Tungsten a good choice for CNC Honing?
Tungsten is extreme hardness, density and heat resistance, which makes it well suited to CNC Honing. We tune the process to the alloy so the finished Tungsten finishing part meets your dimensional and functional requirements.