Application and Research of Composite Parts Manufacturing and Assembly on Aircraft Engine Nacelle Torque Box

The quality of aircraft components is directly related to the quality, safety, performance and flight life of aircraft, The only way is to strictly control the quality of aircraft materials and parts processing, and strictly control the design, production and assembly of aircraft, Can control the quality and performance of the whole aircraft assembly, to ensure safety and prolong the life of the aircraft. The use of composite materials not only improves the strength and safety of aircraft, but also reduces the weight of aircraft and increases the effective load of aircraft, which is a major breakthrough in the aircraft manufacturing industry. "High performance, low cost and multi-function" is the development direction of composite materials in the future, while low-cost manufacturing technology is the development focus of composite materials in the future. Low-cost raw materials, rapid prototyping process technology, large-scale, integrated and integrated products are the core of the development of composite materials in the future. The aircraft engine nacelle torque box project is developed, produced, inspected and delivered in accordance with the numerical models and drawings provided as well as delivery specifications. The torque box of engine nacelle is an important component of aircraft, and the amount of composite material accounts is more than 60%. Advanced composite materials have the advantages of light weight, high specific strength, high specific stiffness, strong designability, good fatigue fracture resistance, corrosion resistance, good dimensional stability and easy to form a large area, at the same time, the use of integral manufacturing technology can greatly reduce the number of parts and fasteners, reduce structural weight, reduce production costs. In view of this, the research and development of aircraft torque box products to reduce the weight of aircraft, increase the payload, simplify the aircraft process equipment, reduce the assembly workload, to shorten the development cycle and reduce the cost of aircraft development is of great significance. Briefly introduces the structure of the torque box of aircraft engine, and systematically analyzes the application process of digital composite parts manufacturing and assembly on the torque box of aircraft. The manufacturing and assembling process of composite parts are studied, and some processing technologies of composite parts are analyzed.