Looking for reliable Chemical Etching Molybdenum? VT machining manufactures Molybdenum parts to tight tolerances and consistent quality. Molybdenum is high melting point; etched for heat-resistant components, so the process is set up specifically for the material.
Process Data for Chemical Etching Molybdenum
| Etchant | Specialist acid blend (HF/HNO₃-based) — controlled facility |
|---|---|
| Suitable thickness | 0.025-0.5 mm |
| Minimum hole / slot | ≈1.0-1.2 × material thickness |
| Feature tolerance | ±10-15% of thickness (min ±0.02 mm) |
Shown for Molybdenum, the most common Molybdenum grade we see for Chemical Etching. Typical values for Molybdenum, Stress-relieved; confirmed on the first part.
Chemical Etching Capability for Molybdenum
- Foil thickness 0.02–1.0 mm
- Minimum feature ≈ 0.8 × metal thickness
- Burr-free, stress-free edges
- Tooling-free: revise artwork digitally
Molybdenum Material Data
| Density | 10.22 g/cm³ |
|---|---|
| Tensile strength | 550–900 MPa |
| Yield strength (0.2%) | 480 MPa |
| Hardness | 200–250 HV |
| Melting point | 2623 °C |
| Thermal conductivity | 138 W/m·K |
| Thermal expansion | 4.8 ×10⁻⁶/K |
| Electrical conductivity | 34% |
| Machinability (C36000 = 100%) | 30% |
| Grades we run | Pure Mo (99.95%), TZM, Mo-La, MoCu |
Published typical values for Pure Mo / TZM. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Below its ductile-to-brittle transition it chips rather than cuts. Sharp corners get a radius, and thin sections are wire-EDM cut instead of milled.
How Chemical Etching Molybdenum Works
A photo-resist patterned from your artwork masks the Molybdenum, and an etchant dissolves the exposed metal evenly from both sides. Because there is no mechanical force, the part stays flat and stress-free.
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 Chemical Etching Molybdenum
| Feature | Standard | Precision |
|---|---|---|
| Feature dimension | ±0.05 mm | ±0.02 mm |
| Minimum feature width | 1.0 × thickness | 0.8 × thickness |
| Foil thickness range | 0.02–1.0 mm | 0.05–0.5 mm |
| Edge condition | burr-free | burr-free, no HAZ |
| Flatness of etched part | 0.1 mm over 100 mm | 0.05 mm over 100 mm |
| Half-etch depth control | ±20% of depth | ±10% of depth |
| Tab / breakout size | 0.5 mm | 0.3 mm |
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 Chemical Etching Molybdenum
A few design choices make a real difference to cost and quality. Designing features no finer than ~0.8× foil thickness and allowing tab placement gives the best yield on etched Molybdenum. If you send your model early, we will return practical DFM feedback before you commit to production.
Working with Molybdenum
Molybdenum offers a useful combination of properties: it is high melting point; etched for heat-resistant components. Those characteristics shape how we approach chemical etching — from tool and parameter selection to work-holding and coolant.
If your application is sensitive to alloy condition, we agree the specification in writing and document it. Stock is sourced from reputable suppliers so what you order is what you receive.
Chemical Etching Tolerances & Surface Finish
Etched Molybdenum holds tight, repeatable feature tolerances on thin gauge, with a minimum feature size around 0.8× the metal thickness and completely burr-free edges.
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 Chemical Etching Molybdenum
Chemical Etching of Molybdenum 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 Molybdenum Parts for Chemical Etching
Illustrative examples of Chemical Etching Molybdenum 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.
Half-etched flex shim
- Material
- Molybdenum
- Size
- 90 × 40 × 0.3 mm
- Key callouts
- Half-etch depth 0.15 ±0.015 mm
- Batch
- 6,000 pcs
Depth held by timed etch with in-line thickness checks every rack.
Encoder disc
- Material
- Molybdenum
- Size
- Ø40 × 0.05 mm
- Key callouts
- Slot width 0.08 ±0.01 mm, concentricity 0.02 mm
- Batch
- 3,000 pcs
Foil this thin cannot be punched; etching is the only route that leaves it flat.
EMI shielding mesh
- Material
- Molybdenum
- Size
- 120 × 80 × 0.1 mm
- Key callouts
- Aperture 0.20 ±0.02 mm, 55% open area
- Batch
- 8,000 pcs
Etched from both sides at once so the aperture wall stays symmetrical.
Finishing Options for Molybdenum
| 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 Chemical Etching Molybdenum
- 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 Molybdenum 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 Chemical Etching
Send the drawing, the Molybdenum 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 tolerances can you hold for Chemical Etching Molybdenum?
Achievable tolerances for Molybdenum etching depend on the alloy, geometry and feature size. Etching holds tight, repeatable tolerances on thin metal without mechanical stress. Exact figures are confirmed against your drawing callouts.
What is the typical lead time and minimum order for Chemical Etching Molybdenum?
Because chemical etching needs no hard tooling, Molybdenum etching prototypes turn around quickly and scale to volume from the same digital artwork. Send your drawing and quantity for an exact lead time and MOQ.
What material thickness or size range suits Chemical Etching Molybdenum?
Etching suits Molybdenum foil roughly 0.02–1.0 mm thick — the thinner the foil, the finer the achievable detail.
What is the finest feature you can etch in Molybdenum?
As a guide, the minimum reliable feature size is roughly 0.8 × the metal thickness, so thinner Molybdenum foil yields finer apertures and detail — all produced burr-free and stress-free.
How clean are the edges produced by Chemical Etching on Molybdenum?
Chemical etching removes Molybdenum without mechanical force, so edges are completely burr-free and stress-free — no secondary deburring needed.
What surface finish is achievable on Molybdenum with Chemical Etching?
Etching leaves Molybdenum with a uniform matte surface and clean, burr-free edges, with optional post-etch finishing.