Precision Aluminum 7075 CNC Machining Services
PRECI5 provides high-precision CNC machining for Aluminum 7075-T6 and 7075-T651 alloys. Operating from our AS9100D-certified precision manufacturing facility in Shenzhen, we partner with engineering teams worldwide to deliver lightweight, mission-critical 7075 precision parts for aerospace, defense, advanced robotics, and demanding industrial automation.
Addressing Critical Challenges in 7075-T6 Aluminum Machining
While Aluminum 7075 boasts strength-to-weight ratios rivaling structural steels, its high zinc content and heat-treatment sensitivity require specialized machining workflows to prevent distortion and ensure metallurgical integrity.
Residual Stress & Deformation
High-strength 7075-T6 stock harbors significant internal stresses released during heavy metal removal.
Thin-Wall Structural Integrity
Aviation ribs and robotic chassis feature thin walls that easily deflect or chatter under tool cutting pressure.
Micro-Finish & Critical Tolerances
Maintaining tight geometric tolerances across multi-axis setups requires thermal control and strict chip management.
7075-T6 / 7075-T651 Mechanical Properties
Aluminum 7075 is alloyed primarily with zinc (5.1–6.1%) and magnesium (2.1–2.9%). The T6 temper indicates solution heat-treated and artificially aged condition, while T651 indicates additional stress-relief stretching, standard for high-precision CNC block milling.
Standard Specifications: AMS 4045, AMS 4049, ASTM B209, QQ-A-250/12
Typical Applications: Aircraft structural spars, UAV airframes, missile fins, high-stress robotic arms, racing suspension knuckles.
| Material Property | 7075-T6 / T651 Value | Engineering Significance |
|---|---|---|
| Density | 2.81 g/cm³ | Low mass ideal for weight-critical flight components |
| Ultimate Tensile Strength | 570 MPa | Comparable to structural steel with 1/3 the mass |
| Yield Strength | 500 MPa | Exceptional resistance to permanent plastic deformation |
| Hardness (Brinell) | 150 HB | High surface wear resistance under cyclic mechanical contact |
| Elongation at Break | 11% | Balanced ductility preventing premature catastrophic failure |
| Thermal Conductivity | 130 W/m·K | Effective heat dissipation in mechanical assemblies |
Industrial-Scale 7075 Machining & Verification Fleet
Our 114-machine facility integrates ultra-rigid 5-axis centers with traceable metrology, designed specifically to maintain high repeatability on intricate 7075-T6 components.
Mazak C600 5-Axis Fleet (8 Units)
Active ProductionEngineered for single-setup multi-surface contouring of complex 7075 aerospace components, eliminating repositioning error and maximizing true geometric position accuracy.
- Axis Travel (X/Y/Z)
- 900×900×700 mm
- Max Spindle Speed
- 24,000 RPM
- Positioning Precision
- 0.003 mm
Metrology & Quality Laboratory
Traceable In-HouseFull measurement traceability verifying internal stress compliance, surface roughness, raw material composition, and multi-axis spatial geometries.
- ZEISS Coordinate Measuring Machine (CMM): 700 × 700 × 600 mm envelope for full GD&T report generation.
- Surface Profilometers: Weir CQR3025G-qvb and TR200 testers verifying roughness down to Ra 0.4 µm.
- Hardness Testing: Rockwell HR-150A and Vickers HV-1000 units validating uniform temper distribution.
- DX-320L XRF Spectrometer: Positive material identification (PMI) ensuring lot-to-lot alloy purity.
Why Global Engineering Teams Trust PRECI5
AS9100D & ISO Certified
Fully certified under AS9100D, ISO 9001, IATF 16949, ISO 13485, ISO 14001, and ISO 45001 standards for aerospace and safety-critical manufacturing.
Reduced Setups
Simultaneous 5-axis capability cuts multi-fixture setups, dramatically minimizing accumulated dimensional errors across complex prismatic faces.
Agile Capacity
A total operational footprint of 114 machines guarantees rapid prototype transition into production volumes without bottlenecking.
Shenzhen Logistics Hub
Direct global air and sea shipping networks ensure dependable delivery timelines, compliant export packaging, and transparent lead times.
Upload Your 7075 Part Drawing
Whether you need single prototype validation or high-volume recurring batch production, our engineering specialists will analyze your CAD models, review GD&T tolerances, and provide comprehensive DFM feedback with an official quotation.