Inconel Machining Services

DEK provides Inconel machining for 600, 625 and 718 parts, from single prototypes to production runs with no MOQ. Our certified processes hold tolerances as tight as ±0.005 mm on a nickel superalloy most job shops avoid.

Get A Quote View All Metals

±0.005mm
Tolerance Capability
3
Inconel Grades
3 Days
Prototype Lead Time

ISO 9001:2015 Certified AS9100D and ISO 13485 certified

Why Nickel Superalloy Machining Needs Specialists

Inconel’s austenitic structure work-hardens under the cutting edge, and the alloy conducts heat poorly, so thermal energy concentrates at the tool tip instead of leaving with the chip. DEK plans toolpaths, fixturing and coolant delivery around those failure modes before the first cut, on the same equipment we use for other superalloys.

DEK holds ISO 9001, ISO 13485:2016 and AS9100D certification, obtained through TUV. Every Inconel order runs through IQC, IPQC, FAI, OQC, SPC and CAPA stages, with in-house CMM inspection and full documentation: the traceability aerospace and energy buyers expect. See our quality system.

20+ years of precision machining programs
1.2M+ parts produced annually
98.6%+ on-time delivery rate
No MOQ, prototypes in as fast as 3 days

Inconel Grades We Machine

DEK machines three Inconel grades. Each grade page carries the chemistry, strength data and machining notes specific to that alloy.

Inconel 600
Corrosion and oxidation resistance
Our Inconel 600 machining serves chemical processing and heat-treatment equipment.
Inconel 625
High strength, corrosion resistance
Inconel 625 machining for marine, offshore and chemical-exposure parts that need strength.
Inconel 718
Precipitation-hardening, aerospace
Inconel 718 machining is our most requested Inconel work, on an aerospace-grade alloy.

CNC milling cutter machining a nickel superalloy Inconel block

±0.005mm
General tolerance
±0.01mm
5-axis profile tolerance
~1000 mm
Structural part size range

Inconel Machining Capabilities at DEK

Inconel runs through the same equipment and QMS stages we use for other hard-to-machine alloys, from prototype to production.

1

Multi-Axis Milling

3-, 4- and 5-axis CNC milling, holding ±0.01 mm profile tolerance on complex geometry with our 5-axis CNC machining.
2

CNC & Swiss Turning

CNC and Swiss-type turning for round Inconel parts, with general tolerances as tight as ±0.005 mm through Swiss machining.
3

EDM Machining

EDM machining reaches the features that conventional cutting tools can't, without forcing a tool into the work-hardened alloy.
4

Grinding & Gears

Precision grinding and gear machining finish Inconel features that need tight size and surface control.

Why Inconel Is Difficult to Machine

The failure modes our engineers plan around before the first cut on any Inconel part, prototype or production.

1

Work Hardening

Inconel’s austenitic structure work-hardens under the cutting edge. Inconel 718 is among the hardest common alloys to cut and wears tools quickly.
2

Poor Heat Dissipation

The alloy conducts heat poorly, so thermal energy concentrates at the tool tip instead of dissipating into the chip. Left unmanaged, it burns through tooling mid-run.
3

Surface Integrity

Uncontrolled cutting leaves recast layers on load-bearing surfaces and can turn a straightforward geometry into a scrapped part.
4

Speeds, Feeds & Lead Time

Expect low cutting speeds, rigid setups, conservative depths of cut and frequent tool changes, so cycle times and per-part cost run higher than stainless or aluminum.

Inconel Grade Data Sheets

Open the Inconel 718 page for chemistry, strength data and machining notes once you know which alloy your application calls for.

Inconel 718

Precipitation-hardening Ni-Cr

Inconel 718 machining at DEK covers UNS N07718 / 2.4668 parts from one prototype to production, with no MOQ and a 3-day prototype lead time. This precipitation-hardening nickel superalloy is milled on 3/4/5-axis platforms with coolant-through tooling and verified on in-house CMM.

Aerospace Energy Semiconductor

Get Price

When to Choose Inconel vs 17-4 PH, Titanium or Steel

If Inconel's cost or lead time doesn't fit your application, compare these alternatives before you commit to a grade.

Criteria	This MaterialInconel	17-4 PH	Titanium	Alloy Steel
Choose it for	Heat, corrosion	Cost, lead time	Strength-to-weight	Milder service
Weight	–	–	Lighter	–
Cost	Higher	–	–	Lower
Cutting	Low speeds	–	–	–
Cycle time	Longer	–	–	–

Inconel Machining for Aerospace & Energy

Inconel parts for OEMs whose components face heat, corrosion or aggressive process chemistry, most of them in Europe and North America.

Finishing & Inspection Options for Inconel

Operations applied after CNC machining of your Inconel parts, confirmed by our engineers during quote review.

Finishing Steps

Precision grinding
Gear machining
In-house CMM inspection

Need another finish on Inconel? See all finish options

Frequently Asked Questions

Common questions about the machinability of Inconel grades before quoting.

What is the machinability of Inconel 625?

Inconel 625 machines somewhat easier than 718 but still needs low cutting speeds, rigid setups and frequent tool changes. Expect longer cycle times and a higher per-part cost than comparable stainless or aluminum work, which factors into your quote.

What is the machinability of Inconel 718?

Inconel 718 is among the hardest common alloys to cut: work hardening and poor heat dissipation wear tools quickly. Budget for slower feeds, conservative depths of cut and correspondingly longer lead times when scoping your order.