CNC 5-Axis Machining Spring Steel

Looking for reliable CNC 5-Axis Machining Spring Steel? VT machining manufactures Spring Steel parts to tight tolerances and consistent quality. Spring Steel is high yield strength and elastic recovery, so the process is set up specifically for the material.

CNC 5-Axis Machining Spring Steel at VT machining
CNC 5-Axis Machining Spring Steel — produced in-house at VT machining

CNC 5-Axis Machining Capability for Spring Steel

  • Simultaneous 5-axis
  • Single-setup complex geometry
  • True-position to ±0.01 mm
  • Impellers, manifolds, blades

Spring Steel Material Data

Spring Steel — typical properties, quoted for 1095 / 65Mn
Density7.85 g/cm³
Tensile strength1200–1700 MPa
Yield strength (0.2%)1000–1500 MPa
Hardness44–50 HRC (tempered)
Melting point1425 °C
Thermal conductivity46 W/m·K
Thermal expansion11.4 ×10⁻⁶/K
Electrical conductivity8%
Machinability (C36000 = 100%)40% (annealed); grind or EDM when hardened
Grades we run1074, 1095, 65Mn, 60Si2Mn, 301 spring temper, 17-7PH

Published typical values for 1095 / 65Mn. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.

Machining Spring Steel — what actually causes trouble

Springback. Formed features are over-bent by a calculated amount; on flat springs we etch or wire-EDM instead of punching so the temper is untouched.

How CNC 5-Axis Machining Spring Steel Works

Rotating multi-flute cutters remove material as the Spring Steel 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.

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 5-Axis Machining Spring Steel

CNC 5-Axis Machining Spring Steel — 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.

Secondary Operations & Finishing

Finished Spring Steel parts can move straight into secondary operations under one roof. Typical add-ons are deburring, passivation, anodising, plating, blasting, polishing and laser marking. We coordinate the whole chain so you receive complete, inspection-ready parts.

CNC 5-Axis Machining Tolerances & Surface Finish

For CNC 5-Axis Machining, 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.

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.

Design Tips for CNC 5-Axis Machining Spring Steel

We are happy to suggest design tweaks that improve manufacturability. Generous internal radii, sensible pocket depth-to-width ratios and avoiding very thin unsupported walls all reduce cost and improve accuracy in Spring Steel. If you send your model early, we will return practical DFM feedback before you commit to production.

CNC 5-Axis Machining Quality & Inspection

We control quality throughout the process, not just at the end. In-process checks plus final inspection — including CMM where specified — keep every Spring Steel part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.

Working with Spring Steel

As a material, Spring Steel is high yield strength and elastic recovery. 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 5-Axis Machining Spring Steel

Customers order CNC 5-Axis Machining Spring Steel 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.

How to Order CNC 5-Axis Machining Spring Steel

Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.

Parts We Have Run in Spring Steel

Three representative CNC 5-Axis Machining Spring Steel jobs, with the callouts that actually drove the process plan. Yours will differ — these are here so you can judge whether your part is in our range before you spend time on an RFQ.

Sensor housing

Material
Spring Steel
Size
86 × 54 × 22 mm
Key callouts
Pocket depth ±0.02 mm, bore H7, flatness 0.015 mm
Batch
250 pcs / quarter

O-ring groove finished in the same setup as the sealing face so the two stay parallel.

Robot end-effector bracket

Material
Spring Steel
Size
180 × 90 × 30 mm
Key callouts
Bore pair concentric within 0.02 mm, weight reduction pockets
Batch
120 pcs

Pockets ganged so wall thickness never drops below 2 mm at the load path.

Vacuum chamber flange

Material
Spring Steel
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.

Finishing Options for Spring Steel

Finishing options available with this material
FinishThickness / effectWhy it gets specified
Deburr / edge break0.05–0.3 mmAll parts unless the drawing says otherwise
Bead blastRa 1.6–3.2 µmUniform matt finish, hides tool marks
Laser markingPart number, lot code, data matrix
Free — no sign-up

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.

Open the 3D + 2D Builder

What We Need to Quote CNC 5-Axis Machining Spring Steel

  • 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 Spring Steel 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 5-Axis Machining

Other Processes for Spring Steel

Send the drawing, the Spring Steel grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.

Request a Quote

Frequently Asked Questions

Which industries use CNC 5-Axis Machining Spring Steel parts?

CNC 5-Axis Machining Spring Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Spring Steel components are required.

What surface finish is achievable on Spring Steel with CNC 5-Axis Machining?

Surface finish on Spring Steel is controlled to your specification; we confirm the achievable Ra against your callout.

What tolerances can you hold for CNC 5-Axis Machining Spring Steel?

Achievable tolerances for Spring Steel machining depend on the alloy, geometry and feature size. Milling holds positional and dimensional tolerances to around ±0.01 mm, tighter with precision setups. Exact figures are confirmed against your drawing callouts.

How clean are the edges produced by CNC 5-Axis Machining on Spring Steel?

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

Can VT machining make custom Spring Steel parts to my drawing?

Yes. Spring Steel Spring Steel machining 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.