Aerospace & Defense CNC Machining Services
Part Categories We Machine
Bracketry & weapon mounts
5-axis milled aluminum and stainless brackets, picatinny-rail components, and weapon-system mounts machined from billet to drawing tolerance.
Antenna & sensor mounts
Lightweight aluminum and titanium mounts for ground-based and airborne RF, EO/IR, and SIGINT payloads.
Ground support equipment housings
Enclosures and chassis for GSE, test fixtures, and field-deployable electronics, with documented material certs.
Bushings, bosses & precision fittings
Live-tool turned components on the Chien Wei CWB-450-CNC for hydraulics, pneumatics, and structural attachments.
Fixtures & tooling for prime depots
Custom CNC-machined fixtures supporting overhaul, repair, and rework lines at depot and OEM facilities.
Representative Case Studies
Anonymized program summaries. Customer and program identifiers withheld under NDA / ITAR.
5-Axis Titanium Antenna Mount for Airborne SIGINT Payload
Material: Ti-6Al-4V · Tolerance: ±0.0005″ true position · Qty: 40 units
Challenge: Tier-1 prime needed a lightweight, vibration-isolated antenna mount with thin-wall pocketing and tight position tolerance between the RF interface bore pattern and the airframe mounting datum. Prior supplier produced parts that passed dimensional inspection but failed installation fit-up due to residual stress distortion.
Approach: Re-toleranced the datum reference frame during DFM review, switched stock from plate to forged billet to reduce residual stress, fixtured on a 5-axis Haas with soft jaws machined from the part model, and added an intermediate stress-relief between roughing and finishing operations. Full AS9102 Rev C FAI with CMM Form 3 against the ballooned drawing.
Outcome: 100% first-pass acceptance at customer source inspection across 40 units. Installation fit-up issue eliminated. Program extended to follow-on lot of 120 units under blanket PO.
Aluminum Picatinny-Rail Component for Land-System Weapon Mount
Material: 6061-T6 · Tolerance: MIL-STD-1913 profile · Qty: 500 units across 4 releases
Challenge: Defense OEM transitioning from prototype to production needed dimensional consistency across scheduled releases over an 18-month period. Critical concern was lot-to-lot variation on the rail profile, which had to interchange with any mount conforming to MIL-STD-1913.
Approach: Locked the prototype CNC program and setup sheet as the production baseline. Each release runs the same probe-verified setup, same tool list, and the same CMM cycle on the Chien Wei CWB-450-CNC. SPC sampling on the rail profile generated Cpk > 1.67 on the critical-to-quality features.
Outcome: Zero non-conformances across four production releases. Customer eliminated incoming inspection on the part number after the third release based on documented process capability.
Inconel 718 Bushing for Ground Support Equipment
Material: Inconel 718 · Tolerance: ±0.0003″ ID · Qty: 25 units (FAI + pilot)
Challenge: Aerospace subtier needed a small lot of high-temperature bushings with a tight ID tolerance and a passivation special-process callout. Two prior shops had quoted but declined due to material handling and process-flow-down requirements.
Approach: Sourced certified Inconel 718 bar with mill test report tied to heat and lot. Live-tool turned on the Chien Wei CWB-450-CNC with carbide tooling rated for nickel-superalloy work and a controlled feed-per-rev to manage work hardening. Routed passivation to an approved processor and verified on receipt against the special-process callout on AS9102 Form 2.
Outcome: FAI accepted on first submission. Material certs, special-process certs, and CoC delivered in customer-template format. Customer added Olympus to approved-supplier list for follow-on superalloy work.
Relevant Compliance & Certifications
- ITAR registered with the Directorate of Defense Trade Controls (DDTC)
- CAGE Code 9V9P0
- CMMC Level 1 self-attested per FAR 52.204-21
- AS9102 Rev C First Article Inspection produced in-house
- Material certifications with heat/lot traceability and Certificates of Conformance
- AS9100D quality system on roadmap
Common Materials
Aluminum 6061-T6, 7075-T6, and 2024; Ti-6Al-4V (Grade 5) and CP titanium grades; 303/304/316L stainless; 4140 alloy steel; Inconel 718 (limited); engineering plastics including PEEK and PEEK-CF30.
See the full list on our materials machined page.
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Last reviewed: May 12, 2026