Composite type structure car door anti-collision beam and manufacturing method thereof

Abstract

The invention discloses a composite type structure car door anti-collision beam and a manufacturing method thereof. The car door anti-collision beam comprises an anti-collision beam outer plate; a composite material inner plate is arranged in the middle of the anti-collision beam outer plate; the manufacturing method specifically comprises the following steps: (1) manufacturing the car door anti-collision beam outer plate; (2) removing and cleaning oil on the surface of the middle part of the anti-collision beam outer plate; (3) carrying out ladder-shaped spreading on carbon fiber prepregs; (4) putting the middle part of the car door anti-collision beam outer plate into a composite material die-pressing female die and positioning; positioning a carbon fiber prepreg spread layer on the car door anti-collision beam outer plate; and (5) curing and molding the anti-collision beam outer plate and the carbon fiber prepreg spread layer to finish cementing of the composite material inner plate and the anti-collision beam outer plate to prepare the composite type structure car door anti-collision beam. Under the condition of meeting lightweight requirements of a car door, the strength of the car door anti-collision beam is improved and high-strength steel is reinforced with a composite material, so that the anti-deformation rigidity of the anti-collision beam is greatly improved and passengers are protected from collision of a car door side.

Description

technical field [0001] The invention relates to the field of automobile door structures, in particular to a composite structure door anti-collision beam and a manufacturing method thereof. Background technique [0002] The door anti-collision beam is a very critical component in the field of automotive passive safety. The side of the car is the weakest part of the car body. In the case of a side collision of a car, there is only a distance of 20-30 centimeters from the door between the occupants in the car and the strong penetrating collision object. Therefore, the injury to the occupants in a side collision is sometimes fatal. Because of this, anti-collision beams are usually arranged between the inner and outer panels of the car door to reinforce the door. [0003] Usually, one or two strong steel beams are arranged in the middle of the side door interlayer of the automobile to form the side door anti-collision beam, and the side door anti-collision beam is usually forme...

AI Technical Summary

Problems solved by technology

However, for the sake of safety, the existing door anti-collision beam makes the door heavy, which cannot meet the requirements of light weight of the door under the condition of meeting the safety requirements.

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