Carbon fiber has become the best material for the current UAV shell and is irreplaceable

Release time:

2017-09-29

In order to ensure the carrying capacity and extended endurance of the UAV, its shell structure needs to be rigid and lightweight, so the current UAV shell parts are generally made of engineering plastics, but they are gradually replaced by carbon fiber composite materials.

Its working principle is the same as that of an airplane, light weight and high strength can work better, and the excellent characteristics of the emerging material carbon fiber make it a material for making drones.

As a high-tech product, UAVs can be used for aerial photography, image transmission, geographic survey, plant protection and irrigation, surveying and mapping, etc., and are now widely used in many fields.

The manufacturing materials of drones are very diverse, and most of the early drone manufacturing materials are aluminum alloys, as well as a small part of titanium alloys, steel, etc. The strength of metal materials is high, but the weight is heavy, and the specific strength and specific stiffness are generally low, resulting in a small payload coefficient of the UAV, and it is easy to reflect the radar signal to form a secondary band, which is very unfavorable if used in the military. Carbon fiber materials can just make up for these shortcomings, it has high specific strength, good electromagnetic shielding effect, the following Shandong Interli new materials will explain to you the reasons for choosing carbon fiber to make drones.

Carbon fiber material is light and strong, physical and chemical properties are very good, today's drones, plant protection aircraft, model toy airplanes and other aircraft are inclined to use this high-tech material, popular among people.

Performance: Compared with metal, the weight of aluminum alloy is low, according to the different alloying elements added, the density is generally about 2.2~2.8g/cm^3, the tensile strength is about 300MPa, and the elasticity and rigidity are low. Aluminum itself is a material that is easily corroded, but aluminum alloy has good corrosion resistance, and it can form an oxide film in the air to prevent further corrosion.

The density of carbon fiber composite materials is only 1.6g/cm^3, the strength is higher than that of steel, and the seismic resistance, high temperature resistance, low temperature resistance, and low thermal expansion coefficient are better, which is better than aluminum alloy.

Carbon fiber tubes can be formed using a variety of processes such as winding, molding, pultrusion, and autoclave. Compared with aluminum alloy materials, it is easy to form in one piece, which can reduce the use of spare parts, simplify the structure and reduce weight.

The price of carbon fiber is higher than that of aluminum alloy, but with the development of the economy, its price gradually tends to be common. Moreover, the use of lightweight carbon fiber materials can reduce the energy consumption of drones, which is also of great significance to environmental protection, and in the long run, the economic benefits are significant.

The fatigue limit of most metals is 30%~50% of their tensile strength, while the fatigue limit of carbon fiber composite materials can reach 70%~80% of the tensile strength, which reduces sudden accidents in the process of use, has high safety and long life. Today's drones tend to use carbon fiber materials.

In general, carbon fiber composite materials are light in weight, large in specific stiffness and high in strength, and can be made into various shapes and structures in one system, which has become the best material for the current application of UAV shells, and is irreplaceable.

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