Detailed Description
FPV drone pilots and small aircraft builders repeatedly report the same failure mode: aluminum fuselage panels dent on hard landing, then propagate cracks under high-frequency vibration from brushless motors. In temperate climates, thermal cycling between -10°C pre-flight and +65°C motor-bay temps induces 0.18mm/m aluminum expansion-enough to misalign gimbal mounts and shift CG.
Our 3K twill 2×2 dry carbon sheets, fabricated from Toray T300 prepreg and autoclave cured, deliver a bending modulus of 65GPa with 50% less mass than 5052 aluminum sheet. Impact energy absorption reaches 28J/mm thickness (Charpy, ASTM D256), meaning crash energy dissipates through controlled fiber break rather than permanent panel collapse. The twill weave provides pseudo-isotropic in-plane stiffness, ideal for fuselage skins subject to multi-axis loads.
CNC routing uses diamond-coated tooling with climb-cut strategy, maintaining interlaminar shear strength >35MPa at cut edges. Every batch is tracked from prepreg roll lot to finished panel, with void content sampled per ASTM D3171. For export, we supply full documentation packs including ITAR-free certification where applicable.
Specification
|
Parameter |
Value |
|---|---|
|
Weave |
3K 2×2 twill / plain optional |
|
Fiber |
Toray T300 / T700 optional |
|
Process |
Autoclave, 6–7bar |
|
Sheet size |
400×500mm to 1500×1000mm |
|
Thickness |
0.3mm – 5.0mm |
|
Surface finish |
High-gloss / matte / peel-ply |
|
Density |
1.55g/cm³ |
|
Interlaminar shear |
>35MPa |
|
Export status |
Legal export, ITAR-free declaration |
Custom FAQ
Q: Can you supply peel-ply finish for secondary bonding to fuselage frames?
A: Yes, peel-ply surface is standard on one or both sides for direct secondary bonding without surface abrasion.
Q: What is the minimum bend radius for 1mm sheet in fuselage forming?
A: Minimum bend radius is 15× thickness for cold forming; heated forming at 120°C allows tighter radii without fiber damage.
Q: Do you provide dimensional drawings with each shipment?
A: Yes, each batch includes CNC inspection report with actual vs nominal dimensions.
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