CNC Swiss Machining Hard Alloys from VT machining delivers precision Hard Alloys parts produced to your exact drawing. Swiss-type machining guides bar stock through a sliding headstock for high-accuracy small, slender parts, and we tune every parameter to the behaviour of Hard Alloys, which is wear-resistant carbide and hardened tool materials.
Process Data for CNC Swiss Machining Hard Alloys
| Bar diameter range | Ø1-32 mm |
|---|---|
| Length-to-diameter capability | up to ~10:1 (slower feeds for this grade) |
Shown for Tungsten Carbide, the most common Hard Alloys grade we see for CNC Swiss Machining. Typical values for Tungsten Carbide, Sintered; confirmed on the first part.
CNC Swiss Machining Capability for Hard Alloys
- Ø1–32 mm bar
- Slenderness without deflection
- Tolerance to ±0.003 mm
- High-volume small parts
Hard Alloys material properties, finishing options and grade notes are on our CNC Turning Hard Alloys page.
How CNC Swiss Machining Hard Alloys Works
The Hard Alloys 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 Swiss Machining Hard Alloys
| 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.
CNC Swiss Machining Tolerances & Surface Finish
Turned Hard Alloys 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.
Design Tips for CNC Swiss Machining Hard Alloys
A few design choices make a real difference to cost and quality. Consistent diameters, standard thread forms and avoiding extremely long, slender features help Hard Alloys turned parts stay concentric and economical. If you send your model early, we will return practical DFM feedback before you commit to production.
Applications of CNC Swiss Machining Hard Alloys
CNC Swiss Machining of Hard Alloys 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 Hard Alloys Parts for CNC Swiss Machining
Illustrative examples of CNC Swiss Machining Hard Alloys 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
- Hard Alloys
- 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
- Hard Alloys
- 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
- Hard Alloys
- 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 Swiss Machining Hard Alloys
- 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 Hard Alloys 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 Swiss Machining
Other Processes for Hard Alloys
Send the drawing, the Hard Alloys grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
What is CNC Swiss Machining Hard Alloys and how is it done?
CNC Swiss Machining Hard Alloys refers to swiss-type machining guides bar stock through a sliding headstock for high-accuracy small, slender parts. Applied to Hard Alloys — wear-resistant carbide and hardened tool materials — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What surface finish is achievable on Hard Alloys with CNC Swiss Machining?
Surface finish on Hard Alloys is controlled to your specification; we confirm the achievable Ra against your callout.
What material thickness or size range suits CNC Swiss Machining Hard Alloys?
Turned Hard Alloys parts are produced from bar or chuck stock across a wide diameter range.
What is the typical lead time and minimum order for CNC Swiss Machining Hard Alloys?
CNC Swiss Machining prototypes for Hard Alloys 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 tolerances can you hold for CNC Swiss Machining Hard Alloys?
Achievable tolerances for Hard Alloys 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.
How clean are the edges produced by CNC Swiss Machining on Hard Alloys?
Machined Hard Alloys edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.