Olympus Machining

Precision CNC machining in Hanover, PA. ITAR registered, CMMC Level 1 compliant.

Olympus Machining LLC — precision CNC machine shop in Hanover, Pennsylvania.

About Olympus Machining

Olympus Machining at Olympus Machining LLC is delivered from our ITAR-registered precision CNC machine shop in Hanover, Pennsylvania (York County). This page (https://www.olympusmachining.com/) documents the scope, controls, and engineering practices we apply for OEM, aerospace, defense, and medical buyers requesting olympus machining.

Olympus Machining is CAGE 9V9P0, CMMC Level 1 self-attested per FAR 52.204-21, and NAICS 332710. CMM dimensional inspection is performed in-house on Haas HMM 430 and Chien Wei CWB-450-CNC. AS9102 Rev C First Article Inspection packages, material certifications with heat/lot traceability, and Certificates of Conformance are produced on request as part of olympus machining.

To request a quote, supplier qualification documentation, or a controlled copy of our capability statement related to olympus machining, contact info@olympusmachining.com or call (717) 634-5094. Olympus Machining LLC, 639 Frederick Street Suite 1, Hanover, PA 17331.

Related pages

    Back to Materials

    Inconel CNC Machining: A Guide to Superalloys for Aerospace & Defense

    Inconel is a family of nickel-chromium-based superalloys engineered for extreme service — sustained strength above 1,200°F, resistance to oxidation, creep, and corrosive combustion environments. Olympus Machining is a U.S.-based, ITAR-registered CNC machine shop in Hanover, Pennsylvania (CAGE 9V9P0) producing Inconel components for aerospace OEMs, defense primes, and high-pressure energy systems.

    Inconel Grades We Machine

    • Inconel 718 (UNS N07718, AMS 5662 / 5663): Age-hardenable nickel-chromium superalloy. Tensile strength ~1,240 MPa (180 ksi) after precipitation hardening. The aerospace standard for turbine disks, engine casings, fasteners, and missile components — strong, weldable, and stable from cryogenic temperatures up to 1,300°F.
    • Inconel 625 (UNS N06625, AMS 5666): Solid-solution-strengthened nickel-chromium-molybdenum alloy. Tensile ~830 MPa (120 ksi). Outstanding corrosion resistance to seawater, acids, and combustion gases. Used for exhaust systems, bellows, chemical processing components, and subsea/oil-and-gas hardware.
    • Inconel 600 & 825: Available on request for chemical processing, heat-treatment fixtures, and specialty corrosion service.

    Why Inconel Is Difficult to Machine

    Inconel work-hardens aggressively under cutting pressure. Heat does not dissipate through the chip (thermal conductivity is roughly one-seventh that of aluminum), so the cutting edge runs hot. The alloy maintains hardness at elevated temperature — the same property that makes it valuable in turbines — which destroys cutting tools that rely on softening the chip. Chips weld to the cutting edge and form built-up edge if feed pressure drops, and tool life is measured in minutes rather than hours.

    Successful Inconel machining requires controlling three variables together: heat (high-pressure flood coolant or through-spindle coolant), cutting pressure (positive, sharp geometry; never let the tool rub), and consistent chip load (constant feed engagement through every transition).

    Tooling & Strategy

    • Coated carbide (AlTiN, TiAlN) for general milling and turning of Inconel 718 at 80–150 SFM; ceramic (SiAlON) inserts at 600–1,000 SFM for roughing where rigidity allows.
    • Trochoidal milling toolpaths to limit radial engagement (5–10% stepover) and protect tool life on pockets and slots.
    • Climb milling with positive-rake geometry; conventional cutting work-hardens the surface ahead of the next pass.
    • High-pressure flood coolant (≥1,000 psi where available) to evacuate chips and pull heat from the cutting zone.
    • Rigid workholding and short tool overhang; Inconel chatter destroys both edge and surface finish.
    • Single-pass finishing wherever possible — a re-cut over a work-hardened surface is more abrasive than the original cut.

    Typical Tolerances & Finish

    • ±0.001″ on milled features, ±0.0005″ on precision turned diameters and bores
    • Ra 0.8–1.6 µm as-machined; finer with finish passes or downstream polishing
    • AS9102 Rev C First Article Inspection on aerospace and defense orders
    • Material certifications and Certificates of Conformance with every shipment
    • Heat-lot traceability to mill cert per AMS standards

    Typical Applications

    Aerospace & Defense (Inconel 718)

    Turbine disks and blades, engine casings, combustor liners, missile and rocket components, high-temperature fasteners, and aft-section structural hardware.

    High-Pressure Systems (Inconel 625)

    Exhaust manifolds, bellows, expansion joints, subsea wellhead components, downhole tooling, and chemical processing fittings exposed to chloride or acid service.

    Defense Components

    Suppressor baffles for high-volume-fire applications, missile housings, and propulsion hardware where heat resistance is non-negotiable.

    Energy & Power Generation

    Gas turbine hot-section parts, nuclear instrumentation hardware, and high-pressure steam fittings.

    DFM Considerations for Inconel Parts

    • Generous internal radii (≥0.060″ minimum) reduce tool engagement spikes and extend cutter life.
    • Avoid thin walls under 0.030″ unless absolutely required — Inconel deflects less than steel but heats more.
    • Specify Ra only where function demands it; tighter finish requirements multiply cycle time on superalloys.
    • Call out heat-treat condition (solution-annealed vs. aged) on the drawing — machinability and final hardness differ significantly.

    Need Inconel Parts Quoted?

    Send a drawing or STEP file with material grade, heat-treat condition, and tolerance schedule. A CAM engineer reviews every quote.

    Submit a Drawing

    Related

    Last reviewed: May 12, 2026