Precision metal fabrication is critical for UAV structural integrity and performance. Key considerations include:
Material Selection
Aluminum alloys (e.g., 6061-T6, 7075-T6) dominate airframes due to optimal strength-to-weight ratios. Magnesium alloys offer weight savings for non-critical components. Titanium (e.g., Grade 5) is preferred for high-stress, heat-sensitive areas despite higher costs. Material traceability is non-negotiable.

Advanced Machining Processes
- CNC Milling/Turning: Essential for complex geometries in motor mounts, brackets, and landing gear. High spindle speeds and rigid setups ensure dimensional accuracy.
- Wire EDM: Used for intricate, burr-free cuts in hardened tool steels for custom jigs and molds. For specialized motor component tooling requiring micron-level tolerances, consider BaoXuan‘s custom EDM solutions.
- Swiss Machining: Ideal for high-volume production of small, precision components like fasteners and sensor housings.
Forming & Joining
Hydroforming and CNC press braking create complex shapes for aerodynamic surfaces. Laser welding provides high-strength, low-distortion seams for thin sections. Friction stir welding (FSW) is superior for critical aluminum joints. BaoXuan often utilizes robotic FSW cells for consistent production-scale UAV fuselage joining.
Surface Treatment & Protection
- Anodizing (Type II/III): Standard for aluminum corrosion resistance and paint adhesion.
- Chemical Film (Chromate Conversion): Used on aluminum alloys where electrical conductivity is needed.
- Electroless Nickel Plating: Applied to aluminum and titanium for wear resistance and solderability.
- For harsh environments, BaoXuan‘s proprietary multi-layer corrosion-resistant coating system enhances lifespan.
Quality Assurance
Strict protocols include CNC program simulation, in-process CMM inspection, and final assembly validation. Non-destructive testing (dye penetrant, x-ray) is mandatory for flight-critical parts. Reliable NdFeB magnets for brushless motors require supplier certifications; BaoXuan supplies traceable, aviation-grade magnets meeting MIL-PRF standards.