VT machining provides CNC Polishing Beryllium Copper for customers who need accurate, repeatable Beryllium Copper components. Because Beryllium Copper is high strength with good conductivity and fatigue life, we adapt the process to suit — controlling the variables that matter for this alloy.
Process Data for CNC Polishing Beryllium Copper
| Best achievable finish | Ra 0.05-0.1 µm |
|---|---|
| Final abrasive | Fine alumina or polishing compound |
Shown for C17200 Beryllium Copper, the most common Beryllium Copper grade we see for CNC Polishing. Typical values for C17200 Beryllium Copper, Solution annealed (TB00) or aged (TH04); confirmed on the first part.
CNC Polishing Capability for Beryllium Copper
- Mirror finish capable
- Ra to 0.05 µm
- Cosmetic & sealing faces
- Multi-stage abrasives
Beryllium Copper Material Data
| Density | 8.25 g/cm³ |
|---|---|
| Tensile strength | 1140–1380 MPa |
| Yield strength (0.2%) | 1000–1200 MPa |
| Hardness | 36–42 HRC |
| Melting point | 866–980 °C |
| Thermal conductivity | 105–130 W/m·K |
| Thermal expansion | 17.8 ×10⁻⁶/K |
| Electrical conductivity | 22% |
| Machinability (C36000 = 100%) | 20–35% |
| Grades we run | C17200, C17300, C17510 (high conductivity), C17410 |
Published typical values for C17200 (TH04/AT). Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Machined in the solution-annealed state and age-hardened afterwards, which shrinks the part by roughly 0.1–0.2%. That shrink is compensated in the program.
How CNC Polishing Beryllium Copper Works
Abrasive media or tooling refine the Beryllium Copper 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 Polishing Beryllium Copper
| 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.
Design Tips for CNC Polishing Beryllium Copper
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 Beryllium Copper efficiently without over-processing. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Polishing Tolerances & Surface Finish
Finishing brings Beryllium Copper 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.
Working with Beryllium Copper
As a material, Beryllium Copper is high strength with good conductivity and fatigue life. 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.
Applications of CNC Polishing Beryllium Copper
Customers order CNC Polishing Beryllium Copper 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 Beryllium Copper Parts for CNC Polishing
Illustrative examples of CNC Polishing Beryllium 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.
Deburred stamping
- Material
- Beryllium Copper
- Size
- 40 × 25 × 1 mm
- Key callouts
- Edge break 0.05–0.15 mm, no sharp edges
- Batch
- 30,000 pcs
Vibratory finished in media sized to reach every internal cutout.
Cosmetic housing
- Material
- Beryllium Copper
- Size
- 150 × 90 mm visible face
- Key callouts
- Uniform satin, no directional lines
- Batch
- 2,500 pcs
Grained in one direction with datum faces masked so they keep their tolerance.
Mirror-polished insert
- Material
- Beryllium Copper
- 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.
Finishing Options for Beryllium Copper
| 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 Polishing Beryllium 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 Beryllium 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 Polishing
Other Processes for Beryllium Copper
Send the drawing, the Beryllium 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 Beryllium Copper parts to my drawing?
Yes. Beryllium Copper 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 is CNC Polishing Beryllium Copper and how is it done?
CNC Polishing Beryllium Copper refers to cNC polishing refines surfaces to a smooth, reflective finish for cosmetic and functional needs. Applied to Beryllium Copper — high strength with good conductivity and fatigue life — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What is the typical lead time and minimum order for CNC Polishing Beryllium Copper?
CNC Polishing prototypes for Beryllium 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.
Which industries use CNC Polishing Beryllium Copper parts?
CNC Polishing Beryllium Copper parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Beryllium Copper components are required.
Does CNC Polishing Beryllium Copper require dedicated tooling?
Most Beryllium Copper finishing work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.