CNC Broaching Tungsten Copper

Looking for reliable CNC Broaching Tungsten Copper? VT machining manufactures Tungsten Copper parts to tight tolerances and consistent quality. Tungsten Copper is combines tungsten strength with copper conductivity, so the process is set up specifically for the material.

Process Data for CNC Broaching Tungsten Copper

Broaching speed (HSS-E)3.2-6.4 m/min
Rise per tooth0.03-0.06 mm
LubricantSulphurised broaching oil

Shown for Tungsten Copper (W70Cu30-W80Cu20), the most common Tungsten Copper grade we see for CNC Broaching. Typical values for Tungsten Copper (W70Cu30-W80Cu20), Infiltrated (pressed, sintered, Cu-infiltrated); confirmed on the first part.

CNC Broaching Tungsten Copper at VT machining
CNC Broaching Tungsten Copper — produced in-house at VT machining

CNC Broaching Capability for Tungsten Copper

  • Keyways & splines
  • Internal profiles
  • One-pass forming
  • High repeatability

Tungsten Copper material properties, finishing options and grade notes are on our CNC Milling Tungsten Copper page.

How CNC Broaching Tungsten Copper Works

Rotating multi-flute cutters remove material as the Tungsten Copper workpiece is driven through programmed tool paths on 3-, 4- or 5-axis machining centres. Climb milling, step-over and depth-of-cut are set so chip load stays in the ideal band for the alloy.

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 Broaching Tungsten Copper

CNC Broaching Tungsten Copper — achievable tolerances
FeatureStandardPrecision
Linear dimension (< 100 mm)±0.05 mm±0.010 mm
Linear dimension (100–300 mm)±0.10 mm±0.025 mm
Hole diameter (reamed)H9H7
True position of hole pattern±0.10 mm±0.025 mm
Flatness over 100 mm0.05 mm0.015 mm
Perpendicularity0.10 mm0.020 mm
Surface finish, as machinedRa 1.6 µmRa 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 Broaching Tungsten Copper

A few design choices make a real difference to cost and quality. Generous internal radii, sensible pocket depth-to-width ratios and avoiding very thin unsupported walls all reduce cost and improve accuracy in Tungsten Copper. If you send your model early, we will return practical DFM feedback before you commit to production.

CNC Broaching Tolerances & Surface Finish

For CNC Broaching, dimensional and positional tolerances around ±0.01 mm are routine, tightening toward ±0.005 mm on precision setups. Surface finish on machined faces typically falls in the Ra 0.4–1.6 µm range depending on tooling and pass strategy.

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 Broaching Tungsten Copper

CNC Broaching 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 Broaching

Illustrative examples of CNC Broaching 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.

Manifold block

Material
Tungsten Copper
Size
120 × 60 × 45 mm
Key callouts
Cross-bore intersection ±0.05 mm, ports G1/8", leak-tested to 10 bar
Batch
80 pcs

Deburred internally with a brush tool; a burr at a cross-bore is what fails the leak test.

Heat sink base

Material
Tungsten Copper
Size
200 × 100 × 8 mm
Key callouts
Fin thickness 1.2 ±0.05 mm, base flatness 0.03 mm
Batch
500 pcs

Fins cut with a slotting cutter in one pass to avoid the deflection a step-over leaves.

Vacuum chamber flange

Material
Tungsten Copper
Size
Ø180 × 20 mm
Key callouts
Knife-edge seal Ra 0.4 µm, bolt circle ±0.05 mm
Batch
60 pcs

Sealing face finished last, then handled in gloves and bagged straight off the machine.

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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.

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What We Need to Quote CNC Broaching 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 Broaching

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.

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Frequently Asked Questions

What is the typical lead time and minimum order for CNC Broaching Tungsten Copper?

CNC Broaching prototypes for Tungsten Copper can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.

Does CNC Broaching Tungsten Copper require dedicated tooling?

Most Tungsten Copper machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.

What is CNC Broaching Tungsten Copper and how is it done?

CNC Broaching Tungsten Copper refers to broaching pushes a toothed tool through or across a part to form keyways, splines and internal profiles. 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.

Why is Tungsten Copper a good choice for CNC Broaching?

Tungsten Copper is combines tungsten strength with copper conductivity, which makes it well suited to CNC Broaching. We tune the process to the alloy so the finished Tungsten Copper machining part meets your dimensional and functional requirements.

What material thickness or size range suits CNC Broaching Tungsten Copper?

We machine Tungsten Copper across a broad size range; share your part envelope for confirmation.

How clean are the edges produced by CNC Broaching on Tungsten Copper?

Machined Tungsten Copper edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.