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Composite structure automobile bumper anti-collision beam and manufacturing method

An automobile bumper and composite structure technology, which is applied to the automobile bumper anti-collision beam and the manufacturing field of the automobile composite structure, can solve the problems of large metal material quality, limited cross-sectional shape, low manufacturing efficiency, etc., and achieves short curing cycle, Optimizing stiffness and producing high-efficiency effects

Active Publication Date: 2019-01-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a composite structure automobile bumper in order to solve the problems that the metal material used for the anti-collision beam of the existing automobile bumper has high quality, the section shape that can be processed and formed is limited, and the use of non-metal materials has high cost and low manufacturing efficiency. Anti-collision beam and manufacturing method

Method used

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  • Composite structure automobile bumper anti-collision beam and manufacturing method
  • Composite structure automobile bumper anti-collision beam and manufacturing method
  • Composite structure automobile bumper anti-collision beam and manufacturing method

Examples

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specific Embodiment approach 1

[0024] Specific implementation mode 1. Combination figure 1 and figure 2 To illustrate this embodiment, the anti-collision beam of a composite automobile bumper includes a steel plate outer plate 1 and a carbon fiber composite material inner plate 2 laid on the inner surface of the steel plate. The inner panel 2 and the outer panel 1 form the anti-collision beam of composite structure by bonding; the thickness of the outer panel 1 can be 1mm-2mm, and the thickness of the inner panel 2 can be 1mm-4mm, and the specific thickness value can be based on the The performance requirements and cost requirements of the anti-collision beam are adjusted. The greater the thickness of the inner panel 2, the better the collision performance and lightweight characteristics, but the cost of its parts will increase.

[0025] The outer panel described in this embodiment is manufactured from a steel plate with a tensile strength of 240 MPa to 1800 MPa by cold stamping, roll bending or thermofor...

specific Embodiment approach 2

[0030] Specific embodiment two, this embodiment is the manufacturing method of composite structure automobile bumper anti-collision beam described in specific embodiment one, and this method is realized by the following steps:

[0031] 1. First use steel plates of different strength levels to form by cold stamping, roll pressing and bending forming or hot forming to manufacture a composite structure automobile bumper anti-collision beam outer plate 1;

[0032] 2. Use acetone or methyl ethyl ketone solvent to clean the inner side of the outer plate 1, and completely remove the oil stains on the inner side of the outer plate 1;

[0033] 3. Apply adhesive to the inner side of the outer plate 1 of the anti-collision beam of the composite automobile bumper;

[0034] 4. Using T300-T700 carbon fiber and thermosetting resin (such as phenolic, epoxy, polyurethane resin, acrylic resin, etc.) or thermoplastic resin (such as: polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS) ...

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Abstract

The invention relates to the field of car engineering, in particular to a composite-structure car bumper anti-collision beam and a manufacturing method. The problems that an existing car bumper anti-collision beam made of metal materials is large in mass and limited in section shape capable of being machined and formed, and an existing car bumper anti-collision beam made of non-metal materials is high in cost and low in manufacturing efficiency are solved. The car bumper anti-collision beam structurally comprises an outer plate and an inner plate, wherein the outer plate is made of a steel plate; the inner plate is made of carbon fiber composite materials; and the outer plate and the inner plate are bonded to form a composite structure. The invention further provides the low-cost and high-efficiency manufacturing method for the composite-structure car bumper anti-collision beam. The low-cost characteristic of the steel plate and the high collision performance characteristic of the composite materials are combined, and thus the collision performance of the bumper anti-collision beam is effectively improved, and the structure weight is greatly lowered. The inner plate made of the carbon fiber composite materials can be formed with the aid of the structure shape of the outer layer of the steel plate, the mold cost is reduced, and the forming efficiency is improved.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to a vehicle bumper anti-collision beam with a composite structure for vehicles and a manufacturing method thereof. Background technique [0002] With the continuous development of automobile technology, the automobile bumper anti-collision beam, as an important safety energy-absorbing component in the frontal collision of the automobile, is the first force-bearing element in contact with the collision object in the frontal and offset collision of the automobile, and must bear the impact of the collision The impact energy is absorbed through plastic deformation, and the remaining impact energy is transferred to components such as the energy-absorbing box and the front side member. At the same time, the anti-collision beam of the automobile bumper is an integral part of the weight of the front-end structure of the body-in-white. Its structural rigidity, crash resistance and energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/18B29C70/34B29L31/30
CPCB29C70/345B29L2031/3044B60R19/18B60R2019/1813B60R2019/1833
Inventor 王登峰吕天佟
Owner JILIN UNIV