Inconel Machining Services in Los Angeles
Inconel 625 and 718 machined, EDM'd and inspected in-house, with tooling and feeds built around a nickel alloy that hardens under the cut.

Inconel is the hardest class of work in the shop for a reason. Nickel-based superalloys retain strength at temperature, so the material fights the tool instead of shearing cleanly; heat concentrates at the cutting edge and drives rapid notch and flank wear. The alloy work hardens aggressively — a rubbing tool leaves a skin harder than the parent stock, which then destroys the next pass. Age-hardened 718 adds abrasive precipitates, and chips come off tough and gummy, welding to the edge unless evacuation and coolant pressure are right.
We run Inconel with rigid setups, sharp positive-geometry carbide or ceramic tooling on dedicated holders, reduced surface speed with elevated feed to keep the edge under the hardened layer, and high-pressure coolant directed at the shear zone. Depth of cut is varied deliberately so wear never concentrates in one place on the insert. Where geometry cannot be milled or turned economically — narrow slots, sharp internal corners, hardened features after aging — we move the work to wire and sinker EDM rather than forcing a cutter. Tool life is tracked per operation so production releases repeat instead of drifting.
- Alloys run
- Inconel® 625, Inconel® 718
- Condition
- Annealed, solution treated and aged
- Turned diameters
- ±.0005″
- Milled features
- ±.001″
- Critical features
- ±.0001″
- Surface finish
- 16 Ra standard · 8 Ra on request
- Certification
- Full material certs, AS9102 FAI on request
- Okuma M560V 4-Axis Vertical — X 41.3″, Y 22.0″, Z 18.1″
- Okuma M460-5X 5-Axis Vertical — X 28.7″, Y 18.1″, Z 17.7″
- Okuma Genos L400II-E CNC lathe
- DMG MORI NL1500SY/500 turning center
- Wire and sinker EDM for hardened and narrow-corner features
- ZEISS ACCURA CMM and optical measurement for first-article reporting
- Turbine and hot-section hardware
- High-pressure valve bodies and seats
- Downhole tool components
- Fasteners, studs and threaded inserts
- Sealing rings and flanged fittings
- Aerospace
- Defense
- Oil and gas
- Power generation
More on the programs we support in industries and on our inspection methods in quality.
Inconel Machining, answered plainly.
Do you machine Inconel before or after aging?
Both. Rough and semi-finish operations usually run in the solution-treated condition, with finishing after aging where the print requires final dimensions in the hardened state. Hardened features that cannot be cut economically move to EDM.
Which Inconel alloys are you set up for?
Inconel 625 and Inconel 718 are the two we run routinely, with certified bar and plate from approved mills and full material certification supplied.
Does Inconel cost more to machine than stainless?
Yes — cycle times are longer and tool consumption is significantly higher. We quote it with realistic tool life per operation rather than optimistic feeds, so the released price holds across the program.
CNC Turning
Eight turning centers, several with Y-axis and sub-spindle, so a chucked part is turned, milled, drilled and finished on the back side without leaving the machine.
View capability →Wire EDM
Wire electrical discharge machining for tight-profile forms, keyways, slots and tabs in hardened tool steel and other conductive materials that resist conventional cutting.
View capability →Sinker EDM
Sinker (ram) EDM sinks a shaped electrode into the workpiece to produce blind cavities, internal splines and forms — and to remove broken taps and drills without scrapping the part.
View capability →Send us the part, not just the material.
Complete what you have and we will come back with questions on the rest. Please do not paste drawings or ITAR / export-controlled data here — we will arrange secure transfer.
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