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Carbon fiber composite material automobile front floor, manufacturing method thereof, and automobile

An automobile front floor and composite material technology, which is applied in the field of carbon fiber composite automobile front floors, can solve the performance requirements and layability requirements of parts that cannot support the front floor, and does not mention the overall layup and reinforcement layup design and other problems , to achieve the effect of improving the process coverage, ensuring the process coverage and reducing the mold

Active Publication Date: 2020-08-11
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no mention of the design of the overall layup and reinforced layup, which cannot support the performance requirements of the front floor parts and the requirements for paving

Method used

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  • Carbon fiber composite material automobile front floor, manufacturing method thereof, and automobile
  • Carbon fiber composite material automobile front floor, manufacturing method thereof, and automobile
  • Carbon fiber composite material automobile front floor, manufacturing method thereof, and automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, a method for manufacturing a carbon fiber composite car front floor, which includes the following steps:

[0034] S1, cutting carbon fiber fabrics and carbon fiber unidirectional fabrics according to the shape of the front floor of the car and different lay-up areas, wherein the front floor body 1 is an integral lay-up, and multiple reinforcements are interposed in the overall lay-up corresponding to the central passage 2 area As for the laying layer, the edges of the plurality of reinforcing laying layers in the width direction of the vehicle body are in a step transition. Taking the direction of the front of the car as the direction of 0°, the overall layup is made of carbon fiber fabric, and the layup angle is [(0 / 90) / (±45) / (±45) / (±45) / (±45) / ( 0 / 90)]. The reinforced layup is made of carbon fiber unidirectional fabric, and the layup angle is [90 / -45 / 45 / 45 / -45 / 90].

[0035] S2, laying the cut carbon fiber fabric and carbon fiber unidirectional fabric in...

Embodiment 2

[0039] Embodiment 2, a method for manufacturing a carbon fiber composite automobile front floor, which includes the following steps:

[0040] S1, cutting carbon fiber fabrics and carbon fiber unidirectional fabrics according to the shape of the front floor of the car and different lay-up areas, wherein the front floor body 1 is an integral lay-up, and multiple reinforcements are interposed in the overall lay-up corresponding to the central passage 2 area As for the laying layer, the edges of the plurality of reinforcing laying layers in the width direction of the vehicle body are in a step transition. Taking the direction of the front of the car as the direction of 0°, the overall lay-up is made of carbon fiber fabric, and the lay-up angle is [(±45) / (0 / 90) / (0 / 90) / (0 / 90) / (0 / 90 ) / (±45)]. The reinforced layer is made of carbon fiber unidirectional fabric, and the angle of the layer is [-45 / 0 / 45 / 45 / 0 / -45].

[0041] S2, laying the cut carbon fiber fabric and carbon fiber unidirec...

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Abstract

The invention discloses a carbon fiber composite material automobile front floor. The front floor comprises a front floor body integrally made of a carbon fiber composite material, the front floor body is an integral paving layer, a plurality of reinforcing paving layers are clamped in the integral paving layer corresponding to a central channel area, and the edges of the plurality of reinforcingpaving layers in the width direction of an automobile body are in stepped transition; the whole paving layer is made of carbon fiber fabric, each reinforcing paving layer is made of carbon fiber one-way cloth, the process paving performance of the carbon fiber composite material and the light weight of the automobile front floor can be coordinated, and the weight reduction effect is more obvious on the premise that the performance is guaranteed. The invention further discloses a manufacturing method of the carbon fiber composite material automobile front floor. The manufacturing method comprises the following steps: S1, the carbon fiber fabric and the carbon fiber one-way cloth are cut; S2, paving is carried out in a mold according to a designed paving area and a paving angle; S3, die assembly and pressurization are conducted, and then heating and curing are conducted; and S4, after curing is completed, demolding is conducted. The invention further discloses a vehicle comprising the carbon fiber composite material automobile front floor.

Description

technical field [0001] The invention relates to automobile lightweight, in particular to a carbon fiber composite automobile front floor, a manufacturing method and a vehicle. Background technique [0002] Traditional fuel vehicles have increasingly urgent requirements for fuel consumption regulations and new energy vehicles for cruising range, and the lightweight of vehicles has ushered in a new round of development opportunities. The lightweight of the car can reduce the quality of the whole vehicle, improve fuel efficiency / cruising range, and thus reduce the cost of using the car. [0003] The front floor of a car is one of the important parts of the body structure, and it is one of the force transmission paths for frontal and side collisions. The front floor of a traditional car is generally made of steel through stamping and welding processes, and the number of parts is as many as a dozen. Not only is it heavy, but it also requires many assembly processes, which is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D25/20B62D29/04B29C70/30B29C70/54
CPCB62D25/20B62D29/043B29C70/30B29C70/543B29C70/54B29L2031/3017
Inventor 高聪张金生刘伯芳张德鹏王志白冯刚
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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