CNC Boring Tungsten Copper is a core capability at VT machining. We combine controlled turning with material-aware setup for Tungsten Copper — an alloy that is combines tungsten strength with copper conductivity — to produce parts that meet your specification first time.
Starting Parameters for CNC Boring Tungsten Copper
| Cutting speed (carbide) | 40-100 m/min |
|---|---|
| Feed | 0.035-0.126 mm/rev |
| Spindle speed, Ø30 mm bore | 420-1060 rpm |
| Insert / tool class | ISO K — CVD-coated carbide |
| Coolant | Emulsion |
Shown for Tungsten Copper (W70Cu30-W80Cu20), the most common Tungsten Copper grade we see for CNC Boring. Starting values for Tungsten Copper (W70Cu30-W80Cu20), Infiltrated (pressed, sintered, Cu-infiltrated); optimised on the first article.
CNC Boring Capability for Tungsten Copper
- Bore tolerance to IT6
- Roundness within 0.005 mm
- Fine boring heads
- Large-diameter capability
Tungsten Copper material properties, finishing options and grade notes are on our CNC Turning Tungsten Copper page.
How CNC Boring Tungsten Copper Works
The Tungsten Copper bar or billet rotates in the spindle while single-point tools shape outer diameters, bores, faces, grooves and threads. Constant surface speed control keeps cutting conditions stable from large to small diameters.
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.
Achievable Tolerances for CNC Boring Tungsten Copper
| Feature | Standard | Precision |
|---|---|---|
| Outside diameter | ±0.05 mm | ±0.005 mm |
| Bore diameter | H9 | H6 |
| Length / shoulder position | ±0.10 mm | ±0.020 mm |
| Concentricity OD to ID | 0.05 mm TIR | 0.010 mm TIR |
| Roundness | 0.02 mm | 0.005 mm |
| Thread class | 6g / 2A | 4h / 3A |
| Surface finish, as turned | Ra 1.6 µm | Ra 0.4 µm |
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.
Design Tips for CNC Boring Tungsten Copper
A few design choices make a real difference to cost and quality. Consistent diameters, standard thread forms and avoiding extremely long, slender features help Tungsten Copper turned parts stay concentric and economical. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Boring Tolerances & Surface Finish
Turned Tungsten Copper holds diameter tolerances to about ±0.005 mm with concentricity within 0.01 mm and good roundness. Turned finishes of Ra 0.4–0.8 µm are achievable with finishing passes and sharp tooling.
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 Boring Tungsten Copper
CNC Boring of Tungsten Copper 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.
Typical Tungsten Copper Parts for CNC Boring
Illustrative examples of CNC Boring Tungsten Copper 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.
Valve seat
- Material
- Tungsten Copper
- Size
- Ø28 × 14 mm
- Key callouts
- Seat angle 45° ±0.1°, roundness 0.005 mm, Ra 0.2 µm
- Batch
- 800 pcs
Seat finished with a single-point diamond pass, no interruption.
Precision shaft
- Material
- Tungsten Copper
- Size
- Ø16 × 240 mm
- Key callouts
- OD h6, concentricity 0.01 mm TIR, keyway 5 H9
- Batch
- 1,000 pcs / year
Turned between centres so both journals share one datum.
Threaded fitting
- Material
- Tungsten Copper
- Size
- Ø22 hex × 38 mm
- Key callouts
- G3/8" thread class 4h, bore H8, sealing face Ra 0.8 µm
- Batch
- 2,500 pcs
Run on a sub-spindle lathe so the back face is finished without a second setup.
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 Boring Tungsten Copper
- 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 Copper 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 Boring
Other Processes for Tungsten Copper
Send the drawing, the Tungsten Copper grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
Can VT machining make custom Tungsten Copper parts to my drawing?
Yes. Tungsten Copper turning 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 Copper with CNC Boring?
Surface finish on Tungsten Copper is controlled to your specification; we confirm the achievable Ra against your callout.
Does CNC Boring Tungsten Copper require dedicated tooling?
Most Tungsten Copper turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What tolerances can you hold for CNC Boring Tungsten Copper?
Achievable tolerances for Tungsten Copper turning depend on the alloy, geometry and feature size. Turning holds diameter tolerances to around ±0.005 mm with concentricity within 0.01 mm. Exact figures are confirmed against your drawing callouts.
What material thickness or size range suits CNC Boring Tungsten Copper?
Turned Tungsten Copper parts are produced from bar or chuck stock across a wide diameter range.
What is CNC Boring Tungsten Copper and how is it done?
CNC Boring Tungsten Copper refers to boring enlarges and finishes existing holes to precise diameter, roundness and surface finish. Applied to Tungsten Copper — combines tungsten strength with copper conductivity — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.