CNC Gear Cutting Inconel

VT machining provides CNC Gear Cutting Inconel for customers who need accurate, repeatable Inconel components. Because Inconel is high-temperature strength and oxidation resistance, we adapt the process to suit — controlling the variables that matter for this alloy.

Process Data for CNC Gear Cutting Inconel

Heat-treat routeAs specified on drawing
Accuracy as cutISO 1328 class 8-9 (AGMA 9-10)
Module range0.3-6
Hobbing speed (HSS-E / carbide)5 / 10 m/min
MethodsGear shaping (internal), form milling, skiving
Gear typesInternal gears, bevel, racks, cluster gears

Shown for Inconel 718, the most common Inconel grade we see for CNC Gear Cutting. Typical values for Inconel 718, Solution-treated or aged; confirmed on the first part.

CNC Gear Cutting Inconel at VT machining
CNC Gear Cutting Inconel — produced in-house at VT machining

CNC Gear Cutting Capability for Inconel

  • Multiple gear types
  • Profile accuracy class
  • Custom modules
  • Hardened-blank ready

Inconel material properties, finishing options and grade notes are on our CNC Gear Hobbing Inconel page.

How CNC Gear Cutting Inconel Works

Tooth profiles are generated in the Inconel blank by a synchronised cutter, then refined to the required accuracy class. Module, pressure angle and helix are programmed from your gear data.

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 Gear Cutting Inconel

CNC Gear Cutting Inconel — achievable tolerances
FeatureStandardPrecision
Accuracy classDIN 8 / AGMA 10DIN 6 / AGMA 12
Profile deviation0.020 mm0.008 mm
Lead deviation0.020 mm0.008 mm
Pitch deviation (cumulative)0.040 mm0.015 mm
Runout0.030 mm0.010 mm
Tooth surface finishRa 1.6 µmRa 0.4 µm (ground)
Module rangem0.5–m8m1–m6

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 Gear Cutting Tolerances & Surface Finish

Gear features are produced to a specified DIN/AGMA accuracy class, with profile and lead controlled for quiet, durable running under load.

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 Gear Cutting Inconel

A few design choices make a real difference to cost and quality. Providing complete gear data (module, pressure angle, profile shift, quality class) lets us produce Inconel gears right the first time. If you send your model early, we will return practical DFM feedback before you commit to production.

Applications of CNC Gear Cutting Inconel

CNC Gear Cutting of Inconel 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 Inconel Parts for CNC Gear Cutting

Illustrative examples of CNC Gear Cutting Inconel 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.

Helical pinion

Material
Inconel
Size
m1.5, z18, 15° helix
Key callouts
DIN 6, lead deviation 0.008 mm
Batch
300 pcs

Ground after case hardening to 58 HRC at 0.6 mm case depth.

Splined shaft

Material
Inconel
Size
DIN 5480, 26 × 1.5
Key callouts
Fit class H7/g6, runout 0.02 mm
Batch
800 pcs

Spline hobbed with the journals ground afterwards on the same centres.

Bevel gear pair

Material
Inconel
Size
m2, z20/z40, 90° axes
Key callouts
DIN 8, mounting distance ±0.03 mm
Batch
200 sets

Contact pattern checked on a rolling tester before release.

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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 Gear Cutting Inconel

  • 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 Inconel 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 Gear Cutting

Other Processes for Inconel

Send the drawing, the Inconel 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 tolerances can you hold for CNC Gear Cutting Inconel?

Achievable tolerances for Inconel gear cutting depend on the alloy, geometry and feature size. We hold tight, repeatable tolerances appropriate to the feature and material. Exact figures are confirmed against your drawing callouts.

What is CNC Gear Cutting Inconel and how is it done?

CNC Gear Cutting Inconel refers to cNC gear cutting forms precise tooth profiles for spur, helical, bevel and worm gears. Applied to Inconel — high-temperature strength and oxidation resistance — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.

Why is Inconel a good choice for CNC Gear Cutting?

Inconel is high-temperature strength and oxidation resistance, which makes it well suited to CNC Gear Cutting. We tune the process to the alloy so the finished Inconel gear cutting part meets your dimensional and functional requirements.

Does CNC Gear Cutting Inconel require dedicated tooling?

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

What is the typical lead time and minimum order for CNC Gear Cutting Inconel?

CNC Gear Cutting prototypes for Inconel 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 gear accuracy class can you achieve on Inconel?

Gear accuracy is specified to DIN/AGMA classes appropriate to the application. Profile and lead are controlled so Inconel gears run accurately and quietly under load.