<p>➀ Replacing aluminum and titanium with thermoplastic CFRP enables automated welding, slashing door assembly time from 110 hours to 4;</p><p>➁ Modular design and component standardization allow fully automated assembly lines, supporting batch production of 4,000 doors annually;</p><p>➂ Integrated technical and economic simulations validate cost-effectiveness, reducing planning time by 25% while balancing automation benefits and capital costs.</p>