Machining method of fiber reinforced composite material connecting piece

Abstract

The invention relates to a machining method of a fiber reinforced composite material connecting piece, and belongs to the field of material mechanics testing. The machining method includes the steps that a lamellar fiber cloth is cut into two sets of umbrella-shaped pasting pieces, each umbrella-shaped pasting piece is composed of a rectangular supporting part in the middle and a laterally symmetrically inclined extending connecting arm, and the middles of the rectangular supporting parts are provided with creases; the rectangular supporting part of each umbrella-shaped pasting piece is bent along the crease to form an included angle matched with two connecting plates of a to-be-processed connecting piece, and two connecting arms of each umbrella-shaped pasting piece are folded inwards tobe perpendicular to the corresponding rectangular supporting part; and the two sets of umbrella-shaped pasting pieces are successively laid in layers and cemented from inside to outside in end-to-endsymmetry and then put into an assembly mold for heating, solidifying and molding, and after machining the product shape and connecting holes, a target product is obtained. According to the machining method of the fiber reinforced composite material connecting piece, a fiber reinforced composite material machines the connecting piece in the shape of angle steel, the strength meets the requirementsof framework connection, and weight reduction of product framework building is further realized.

Description

technical field [0001] The invention relates to the field of manufacturing methods for composite material applications, in particular to a processing method for fiber-reinforced composite material connectors. Background technique [0002] Fiber-reinforced composite materials are widely used in aerospace, aircraft, racing cars and other structures because of their light weight, high strength, designability, and easy processing. With the reduction of the price of fiber-reinforced composite materials and the increase of output, fiber-reinforced composite materials have entered the civilian market, especially in new energy vehicles, which can reduce the weight of the vehicle frame by more than 40%, thereby increasing the battery loading capacity and improving cruising range. [0003] At present, the processing method of traditional fiber-reinforced composite materials is: cutting the sheet-like fiber cloth into a shape that matches the shape of the product to be processed, and ...

AI Technical Summary

Problems solved by technology

Because the traditional process cannot process complex structures such as angle steel, in order to ensure the connection strength, the traditional angle steel connectors are all made of metal materials, and the angle steel connectors become a difficulty in reducing weight when fiber reinforced composite materials are used to build product frames.

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