Difficult-Alloy Precision CNC Machining
Inconel 718 Turning
We turn Inconel 718 components to spec, from engineering prototypes to controlled low-volume and repeat production—backed by process control, inspection evidence and dependable communication.
Send us your RFQ package (PDF drawing + STEP model) and we’ll respond within 24–48 hours with a manufacturability review, quote and lead-time.
Why AXALLOY for Inconel 718 turning
We specialize in difficult alloys like Inconel 718—not commodity parts—so we plan the machining route around material behavior, geometry, tolerances and surface requirements.
We support international engineering, procurement and quality teams who value manufacturability, documentation and supply reliability over the lowest unit price.
Prototype to production: we help you validate design intent, prove capability on first articles and lock down a stable, repeatable process for ongoing orders.
Who we serve
Industries
Aerospace, medical devices, semiconductor equipment, energy, oil & gas, marine, robotics, automation and precision industrial equipment
Decision-makers
Mechanical/design/manufacturing engineers, sourcing/commodity managers, supplier quality engineers and quality managers
Markets
North America, Europe, UK, Australia, New Zealand and advanced manufacturing hubs across Asia
Capabilities you can build a program around
From single prototypes to repeat production runs, our turning center is equipped for Inconel 718 complexity.
Turning & Mill-Turn
CNC turning and live-tool mill-turn for multi-feature rotational parts. Mill-turn up to Ø400 × 800 mm with main/sub spindles, C/Y axes and live tooling.
Size Capacity
Maximum turning diameter Ø500 mm, turning length 1,000 mm; bar capacity Ø80 mm. Swiss turning for small features: bar Ø up to 32 mm, minimum Ø0.5 mm.
Precision Tolerances
Typical tolerances to ±0.005 mm; concentricity to 0.008 mm; roundness to 0.005 mm. Threads from M1.0 and up; thread milling and single-point turning verified by gauges.
Surface Finishes
Turned Ra 1.6 μm typical; precision machined Ra 0.8 μm; ground surfaces down to Ra 0.2 μm when required.
Suitable Parts
Shafts, sleeves, bushings, pins, nozzles, valve components, fittings, connectors, and multi-feature rotational parts with tight geometry and difficult threads.
Our approach to Inconel 718 turning
Inconel 718 work-hardens quickly, generates heat and punishes tools. We build stability into the process:
- → DFM and tolerance review before quoting: geometry, thin walls, critical interfaces, datum strategy and inspection plan
- → Tooling strategy matched to cut type: high hot-hardness coated carbide for general turning; controlled edge prep for chip formation; ceramics considered for stable roughing
- → High-pressure through-coolant, optimized chip-breaking and controlled feeds to avoid work-hardened zones
- → Conservative tool engagement and consistent depth-of-cut to stabilize wear and size control
- → Mill-turn consolidation to reduce setups and strengthen feature relationships
- → Rigorous in-process inspection: datums, diameters, runout, concentricity and threads verified at key operations
- → Special processes coordinated per spec: heat treatment (solution + age where required), precision grinding on sealing/bearing surfaces, passivation/coating, deburring, cleaning and marking
Inspection and documentation
First Article Inspection available; ballooned drawings and full dimensional reports on request
Material traceability and test reports (MTR/MTC) per your spec
Certificates of conformance; special process records; surface roughness and hardness reports
Calibrated CMM up to 700 × 1,000 × 600 mm; optical measurement to ±0.002 mm
Controlled inspection environment for consistent results
Lead times and production
Expedited service available depending on scope and documentation.
Volumes supported: 1–10,000+ parts (best fit: high-value prototypes and low-volume/high-mix repeat programs)
We’re a fit when you need manufacturability, process control, traceable documentation and predictable delivery—not just a low unit price.
RFQ checklist for Inconel 718 turning
Include these items to accelerate quoting and process planning:
- ✓ 2D drawing (PDF) with complete tolerances, datums and notes
- ✓ 3D model (STEP/STP preferred)
- ✓ Material specification (e.g., Inconel 718 per your AMS/ASTM callout)
- ✓ Quantities: prototype and/or batch size, expected annual usage
- ✓ Critical features: surfaces, threads, geometric tolerances, inspection points
- ✓ Required documentation: FAI, dimensional reports, MTR/MTC, special process records
- ✓ Special processes: heat treatment, grinding, passivation/coating, cleaning, marking
- ✓ Packaging and export requirements, target delivery date
Typical use-cases
Valve bodies and nozzles
Tight concentricity and sealing surfaces
Threaded connectors
Stable torque and gauge compliance
High-temperature shafts and bushings
Controlled roundness and runout
Multi-feature rotational parts
Consolidated via mill-turn to reduce setups
Supported files
Get a reliable Inconel 718 turning route
Send us your RFQ package and we’ll provide a clear manufacturability review, pricing, lead time and an inspection/documentation plan aligned to your requirements. We’ll work from prototype through repeat production with the process control and traceability your program demands.
Ready to start? Submit your RFQ with PDF + STEP and note “Inconel 718 Turning” in the subject. We’ll reply within 24–48 hours.
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Tell us about your component requirements and material challenges.