News

1. ** Metal skin * *:
-* * Advantages * *:
-High strength: The metal skin has high strength and rigidity, and can effectively bear and transmit pneumatic loads.
-Good corrosion resistance: metal skin, especially aluminum alloy and titanium alloy, has good corrosion resistance and can maintain stable performance under various environmental conditions.
-Mature manufacturing technology: The manufacturing technology of metal skin is relatively mature, which is conducive to ensuring product quality and reducing costs.
-* * Disadvantages * *:
-Heavy weight: Compared with composite materials, the density of metal skin is high, which leads to the increase of the weight of the whole aircraft structure and affects the flight performance.

2. ** Composite skin * *:
-* * Advantages * *:
-Lightweight: the composite skin is lighter than the metal skin, which helps to reduce the overall weight of the aircraft and improve flight performance.
-High strength: the composite skin has high specific strength and specific stiffness, that is, the ratio of strength to weight is better than that of metal material.
-Good corrosion resistance: the composite skin has excellent resistance to chemical corrosion and mechanical damage.
-Strong designability: The composite skin can be designed as required to achieve a complex streamlined shape, which is conducive to reducing air resistance.
-* * Disadvantages * *:
-Complex manufacturing process: The manufacturing process of composite skin is relatively complex, which requires high technical level and equipment investment.
-Higher cost: Due to the complicated manufacturing process and high cost of raw materials, the price of composite skin is usually higher.

3. ** Sandwich skin * *:
-* * Advantages * *:
-High structural strength: Sandwich skin is composed of panel and core material, which has high structural strength and rigidity.
-Good sound and heat insulation effect: the sandwich structure has good sound and heat insulation performance, which helps to improve the comfort of passengers.
-* * Disadvantages * *:
-Heavy weight: Sandwich skin may be heavier than metal skin and composite skin, which has certain influence on flight performance.
-The manufacturing process is complicated: the sandwich skin needs the composite processing of the panel and the core material, and the manufacturing process is relatively complicated.

4. ** Integral wall panel * *:
-* * Advantages * *:
-High strength: the integral wall panel has high strength and rigidity and can bear large load.
-Fatigue life: The integral panel structure can improve the fatigue life of aircraft.
-Smooth surface: the surface of the integral wall panel is smooth, which is beneficial to reduce air resistance.
-* * Disadvantages * *:
-Serious waste of materials: a large amount of metal needs to be removed in the production process of the integral wallboard, and the material utilization rate is low.
-Complicated manufacturing process: The manufacturing process of the integral wallboard is complicated, and it needs to be equipped with large-scale special high-efficiency CNC machine tools and other equipment.

It should be noted that the above advantages and disadvantages are based on the general assessment, and may be different in actual application according to specific needs and conditions. In addition, with the continuous progress of science and technology, the development of new materials and processes may change the performance characteristics of these skins.