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    CMM Inspection Services for Aerospace Parts

    Coordinate measuring machine (CMM) inspection is the backbone of dimensional verification for precision aerospace and defense CNC parts. Olympus Machining LLC operates two CMMs in our Hanover, Pennsylvania facility: the Haas HMM 430 (3-axis manual/CNC measuring machine) and the Chien Wei CWB-450-CNC (full CNC CMM). Both are used for in-process inspection, final inspection, and AS9102 First Article Inspection on ITAR-controlled work under our CAGE 9V9P0 supplier code.

    Equipment

    Haas HMM 430

    3-axis CMM with a 400 × 300 × 300 mm measuring envelope. Used for prismatic parts, brackets, housings, and milled features. Touch-probe measurement of linear dimensions, hole patterns, position tolerances, flatness, perpendicularity, and parallelism. Programmed in PC-DMIS-equivalent CMM software with results exported to AS9102 Form 3.

    Chien Wei CWB-450-CNC

    CNC coordinate measuring machine with a 450 × 500 × 400 mm measuring envelope and rotary axis support. Used for turned parts, complex 5-axis milled geometries, and components requiring repeatable cycle inspection across production lots. Capable of true-position evaluation, profile of a surface, cylindricity, and coaxiality on shafts and bores.

    When CMM Inspection Is Used

    • • AS9102 First Article Inspection (Form 3 characteristic accountability)
    • • Production lot dimensional verification on aerospace and defense programs
    • • In-process inspection between operations on multi-setup parts
    • • Source inspection support when a customer representative attends final acceptance
    • • Capability studies (Cp/Cpk) on production runs requiring statistical evidence of process control
    • • Reverse engineering of legacy parts when only a sample exists

    Documentation Output

    CMM measurement output is delivered in the format the customer requires — most commonly an AS9102 Rev C Form 3 with balloon-numbered characteristics, but also as a customer-template inspection report, a generic dimensional report, or raw CMM output (when requested for the customer's own analysis).

    For ITAR-controlled parts, dimensional reports are handled as controlled documents under the same procedures as the engineering drawing — stored in access-controlled folders and delivered through customer-specified channels.

    Calibration and Traceability

    Both CMMs are calibrated annually by an accredited calibration service. Calibration certificates are NIST-traceable and are made available on request as part of supplier qualification packages or audit responses. Inspection-relevant hand tools (micrometers, calipers, gage blocks, thread gages) are managed under the same calibration program with controlled recall intervals.

    Add CMM Inspection to Your Order

    CMM inspection is included by default on AS9102 first articles and available on production runs as a quoted line item. Submit your drawing with a note of the inspection scope you need.

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    Related: AS9102 FAI guide · Balloon drawings for Form 3 · Quality assurance overview · Precision CNC machining · CNC milling · CNC turning