In the aerospace field, fasteners not only require extremely high strength and corrosion resistance, but also must be lightweight, high precision and reliable. Take the wing assembly of a certain type of aircraft as an example. The connection between the wing and the fuselage relies on thousands of precision fasteners, which must be able to withstand the huge pressure, temperature changes and vibrations during flight.

Problem Analysis:
Challenges faced by aerospace fasteners include: extreme temperature environments, fatigue life under high stress, and the balance between material lightweight and strength. In addition, even the slightest error in fasteners may affect flight safety.

Solution:

· Choose titanium alloys or high-strength alloys : These materials are light yet strong, making them suitable for aerospace applications.

· Precision manufacturing and testing : CNC machine tools are used to ensure the dimensional accuracy of fasteners; internal defects are detected using X-ray or CT scanning.

· Locking and anti-loosening design : Use self-locking washers, apply thread locking agents and other measures to prevent fasteners from loosening in a vibrating environment.

· Environmental adaptability test : The fasteners are tested for performance in high temperature, low temperature, humidity and other environments to ensure that they can work normally under various extreme conditions.