Detailed Description
Aluminum alloy airframe plates cause two field-proven problems: 2.7g/cm³ density shortens flight endurance by 12–18% vs carbon, and coastal/agricultural exposure creates crevice corrosion at fastener holes within 6–9 months. Worse, CTE of 23ppm/°C induces 0.3–0.5mm thermal drift on 250mm gimbal mounts-degrading LiDAR and photogrammetry accuracy.
Feature: T700 UD prepreg [0/90/±45]ns symmetric layup, autoclave cured 180°C/7bar.
Advantage: Void content ≤1.1% (ASTM D3171), FVF 62±2%, CTE axial 0.8ppm/°C, ILSS >38MPa.
Benefit: 45% mass reduction vs 6061-T6 at equal flexural stiffness (tested Ef≈150GPa); eliminates corrosion; thermal drift <0.004mm across 50°C span-preserving camera/sensor boresight; diamond-tool climb-cut CNC prevents delamination at edges.
Each lot traceable to prepreg batch, cure log and dimensional report. Full export docs: MSDS, CO, HS 6815.99, material cert, dual-use screening.
Specification
|
Parameter |
Value |
|---|---|
|
Fiber |
Toray T700 UD / surf. 3K twill opt. |
|
Process |
Autoclave prepreg 180°C 7bar |
|
Thickness |
0.5–12mm |
|
Max panel |
1500×1000mm |
|
Density |
1.52g/cm³ |
|
Flex mod. |
145–165GPa |
|
Void |
≤1.1% ASTM D3171 |
|
FVF |
62±2% |
|
Flatness |
±0.1mm/500mm |
|
Export |
Legal export, full docs |
Certifications
FAQ
Q: Can this replace 3mm 6061-T6 plate without changing hole pattern?
A: Yes if bearing stress within allowables (ASTM D953 data supplied). High-load zones benefit from local Ti/AL inserts-we pre-drill with reinforced holes.
Q: Does CTE affect gimbal alignment?
A: Axial CTE 0.8ppm/°C → 0.004mm drift on 250mm span over 50°C. Negligible vs aluminum's 0.3mm.
Q: What CNC tolerance at 2mm thickness?
A: ±0.1mm std, ±0.05mm high-precision. Climb-cut with diamond tooling to protect ILSS >38MPa.
Q: Export docs for EU/NA?
A: Invoice w/ HS 6815.99, MSDS, CO, batch cert, dual-use screening declaration.
Q: Peel-ply for secondary bonding?
A: One/both sides std at no cost; Ra 3.2–6.3μm ready for structural adhesive.
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