Automobile anticollision structure part and preparation method thereof

Abstract

The invention provides an automobile anticollision structure part and a preparation method thereof. The preparation method comprises the following steps: paving and superposing a carbon fiber material and performing thermocompression combination on the carbon fiber material and a resin material so as to form a resin-fiber composite material component; then fixedly connecting the resin-fiber composite material component with a metal material component so as to obtain the automobile anticollision structure part which not only comprises the carbon fibre material, but also comprises a metal base layer, not only preserves the advantages such as high strength and high tenacity of the metal anticollision component and meets the welding connection requirements of the anticollision structure part and body structure part, but also fully utilizes the advantages such as low density, light weight, excellent specific modulus and specific strength, high corrosion resistance and high modality of the carbon fiber material. The obtained automobile anticollision structure part has the unique advantages of light weight, high strength, corrosion resistance, excellent energy absorption capability and no possibility of falling from an automobile body when collided at a middle-low speed, is more beneficial to NVH control in an automobile running process, can be used for promoting extensive application of the carbon fiber material in automobile parts and has wide market prospect.

Description

technical field [0001] The invention belongs to the field of automobile parts manufacturing, and in particular relates to the design and preparation of automobile anti-collision structural parts, in particular to the automobile anti-collision structural parts containing carbon fiber materials and a preparation method thereof. Background technique [0002] Lightweight has become the trend of the world's automobile development. Automobile lightweight is to reduce the curb weight of the automobile as much as possible under the premise of ensuring the strength and safety performance of the automobile, so as to improve the power performance of the automobile, reduce fuel consumption, and reduce exhaust pollution. Carbon fiber composites are an option for lightweighting vehicles. With the reduction of carbon fiber cost and the improvement of processing technology, the application of carbon fiber composite materials in automobiles has gradually shifted from racing cars and luxury ...

AI Technical Summary

Problems solved by technology

The current anti-collision structural parts of automobiles are basically made of high-strength metal materials or alloy materials. Poor corrosion, seriously affecting service life

At present, there are also proposals to directly use carbon fiber materials as automotive anti-collision structural parts, but the current application of carbon fiber materials to replace metal materials in automotive anti-collision structural parts has the following technical problems: the strength and elongation of carbon fiber materials as anti-collision structural parts Low, poor toughness, easy to break when subjected to external impact, especially when subjected to a large offset impact force, carbon fiber material automobile anti-collision structural parts are prone to fracture, so that the received impact energy cannot be transmitted to its connection The energy-absorbing structural parts and the car body are likely to cause serious safety accidents, and pure carbon fiber materials cannot be welded to the body structural parts, which will cause the anti-collision structural parts to fall off and separate from the car body easily when hit

Images