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Aerospace Precision Machining Service — CNC Parts for Flight-Critical Applications

High precision aerospace components manufactured by CNC lathe turning

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.

Aerospace Machining Capabilities

CNC Milling for Aerospace Machined Parts

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.

CNC Turning for Aerospace Round Components

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 CNC Machining for Complex Aerospace Geometry

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.

Aerospace Materials We Machine

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.

custom CNC milled aluminum precision part for aerospace application

Aluminum 6061/7075

Inconel 718

titanium custom CNC milled block part for aerospace industry

Titanium

Three threaded rods made of 1045f carbon steel

Mild Steel 1018/1045

POM custom CNC milled mechanical part for precision assembly

POM

nylon CNC milled bushing for automotive wear component

Nylon

ABS custom CNC milled housing enclosure prototype part

ABS

PEEK PBMA CNC milled engineering plastic part for industrial use

PEEK

PC machined parts

PC

Tolerance & QC Sections — Chiheng Hardware
Precision data

Tolerance Capabilities

Precision machining for the aerospace industry demands tighter tolerances than commercial machining. Select the grade that matches your component's functional criticality.

±0.005 mm
Aerospace grade linear — CMM verified, NIST-traceable calibration
Hole diameter ±0.003 mm
Surface roughness Ra 0.4 μm
Flatness / straightness 0.005 mm
True position ±0.005 mm
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.

Quality assurance

Quality Control & Certifications

Every aerospace precision machining order passes through a documented four-stage quality process — from incoming material inspection to final CMM verification before shipment.

01
Incoming inspection
MTR verification & hardness test
02
First article (FAI)
CMM full dimensional report
03
In-process check
Critical dims at each setup
04
Final inspection
100% check 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
CTA Section — Chiheng Hardware

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Ready to start your aerospace
machining project?

Upload your drawings and receive an instant quote within 12 hours.
Our engineers understand what flight-critical supply chains need.

ISO 9001:2015 CERTIFIED
±0.005MM TOLERANCE
FULL MATERIAL TRACEABILITY
MOQ FROM 1 PC
DDP / DAP WORLDWIDE

FAQ

What tolerances can aerospace precision machining achieve?

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.

CNC Machining Resources

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