
Chiheng delivers aerospace precision machining for the world’s most demanding flight-critical components. From titanium engine brackets and aluminum 7075 structural frames to Inconel turbine hardware, our 100+ CNC machines achieve tolerances of ±0.005mm with full material traceability on every order. As an ISO 9001:2015 certified aerospace machine shop, we combine 3-axis, 4-axis, and 5-axis milling with CNC lathe turning to produce aerospace machined parts with the accuracy, consistency, and documentation your program requires — from prototype to production run. Request a quote today and receive a review within 12 hours.
Our multi-axis CNC milling capability is the backbone of our aerospace precision machining service. Using FANUC-controlled 3-axis and 5-axis machining centers with spindle speeds up to 20,000 RPM, we produce complex aerospace machined components with repeatable accuracy across production runs of 1 to 10,000+ pieces.
Typical aerospace CNC milling applications: structural brackets, avionics enclosures, fuel system housings, hydraulic manifolds, landing gear components, and satellite hardware.
Our Tsugami CNC lathe fleet — including Swiss-type automatic lathes for small-diameter precision work — handles aerospace round components to ±0.003mm bore diameter tolerances. Ideal for aerospace fasteners, actuator shafts, valve bodies, and sensor housings requiring tight concentricity and surface finish (Ra 0.4μm achievable).
5-axis simultaneous machining allows us to complete complex aerospace parts in a single setup — eliminating re-fixture error and cutting lead time. This is critical for aeronautical precision machining where complex contours, deep pockets, and multi-face features must maintain true position within ±0.005mm.
Industries served by our 5-axis capability: commercial aviation, defense systems, satellite structures, UAV/drone frames, and space launch vehicle hardware.
Material | Density | Tensile Strength | Typical Aerospace Applications | Machinability |
Aluminum 7075-T6 | 2.81 g/cm³ | 572 MPa | Structural frames, brackets, housings | Excellent |
Titanium Ti-6Al-4V | 4.43 g/cm³ | 950 MPa | Engine mounts, fasteners, hydraulic blocks | Good |
Inconel 718 | 8.19 g/cm³ | 1240 MPa | Turbine components, exhaust systems | Challenging |
Stainless Steel 17-4PH | 7.78 g/cm³ | 1170 MPa | Actuator parts, sensors, fittings | Good |
PEEK | 1.32 g/cm³ | 100 MPa | Insulation parts, medical cabin devices | Excellent |
All materials sourced with certified mill test reports (MTR). Traceability records retained for 10 years.
Precision machining for the aerospace industry demands tighter tolerances than commercial machining. Select the grade that matches your component's functional criticality.
| Tolerance type | Aerospace grade | Standard grade | General grade |
|---|---|---|---|
| Linear dimensions | ±0.005 mm | ±0.010 mm | ±0.025 mm |
| Hole diameter | ±0.003 mm | ±0.008 mm | ±0.015 mm |
| Surface roughness (Ra) | 0.4 μm | 0.8 μm | 1.6 μm |
| Flatness / straightness | 0.005 mm | 0.010 mm | 0.020 mm |
| True position | ±0.005 mm | ±0.010 mm | ±0.025 mm |
All aerospace precision CNC machined parts inspected on CMM with NIST-traceable calibration. Full inspection reports available on request.
Every aerospace precision machining order passes through a documented four-stage quality process — from incoming material inspection to final CMM verification before shipment.
| Certification / Standard | Scope | Status |
|---|---|---|
| ISO 9001:2015 | Full quality management system | Certified |
| AS9100-ready processes | FAI, traceability, control plans | In practice |
| ASTM A967 | Passivation — stainless steel parts | Compliant |
| MIL-A-8625 Type III | Hard anodizing — aluminum parts | Compliant |
| NIST-traceable CMM | Dimensional inspection, calibrated annually | Calibrated |
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Our engineers understand what flight-critical supply chains need.
At Chiheng, our aerospace precision machining service achieves linear tolerances of ±0.005mm (±0.0002 inch) and hole diameter tolerances of ±0.003mm. Surface roughness of Ra 0.4μm is achievable with appropriate tooling and feed rates. All tolerances are verified by CMM inspection.
Aerospace precision machining involves tighter tolerances, full material traceability, certified surface treatments, and documented first-article inspection (FAI) processes that standard commercial CNC machining does not require. Aeronautical precision machining also requires machining of more challenging materials such as titanium and Inconel, which demand specialized tooling, lower cutting speeds, and higher coolant pressure.
Yes. All aerospace machined components shipped by Chiheng include mill test reports (MTR) confirming material grade, heat/lot number, chemical composition, and mechanical properties. Traceability records are retained for 10 years.
Yes, we can process customer-supplied material (also known as free-issue material) for aerospace applications. We will provide receiving inspection documentation and maintain full chain-of-custody records throughout the machining process.
Prototype lead time is typically 7–10 business days for aerospace precision machining from approved drawings. Production runs of 50–500 pieces typically require 15–25 business days depending on material, complexity, and surface finish requirements. Rush orders can be accommodated — contact us to discuss.
We accept STEP, IGES, DXF, DWG, and PDF formats. Native CAD files (SolidWorks, CATIA, NX) are also accepted. For precision aerospace CNC machined parts, we recommend providing both a 3D model (STEP) and a 2D drawing with GD&T callouts for unambiguous tolerance verification.
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