An equipment and forming method for free-rolling and bending of super-hybrid composite laminates

Abstract

The invention discloses a free roll bending equipment for super-hybrid composite layer plates and a forming method. The super-hybrid composite layer plates are of lamination structures of metal layers and fiber reinforced resin base composites, and the forming method comprises six procedures, namely spraying glue and feeding, hot rolling, free roll bending, water cutting and pressure maintaining cooling; the free roll bending operation is achieved by rotating of a bending roll shaft and revolving around an fixing roll shaft of the bending roll shaft, the bending curvature is determined by the radius of the fixing roll shaft, and the bending angle is determined by the revolution angle of the bending roll shaft; and after an bending component is subjected to free roll bending, the bending component is placed in a closed container with a constant pressure to conduct heat insulation and is cooled to a room temperature. According to the free roll bending equipment for the super-hybrid composite layer plates and the forming method, preparation and bending formation of the super-hybrid composite layer plates are integrated, manufacturing cost and time is reduced by a large margin, and the free roll bending equipment for the super-hybrid composite layer plates and the forming method have the advantages of being high in interlayer combination strength, high in forming precision, high in degree of automation and high in designability.

Description

technical field [0001] The invention belongs to the technical field of advanced preparation and forming of super-hybrid composite laminate structures, and in particular relates to a super-hybrid composite laminate free rolling bending equipment and a forming method thereof. Background technique [0002] The super-hybrid composite laminate involved in the present invention is a laminated structure of multilayer metal sheets and continuous fiber-reinforced resin-based composite laminates. The super-hybrid composite material relies on its ultra-high specific strength and specific stiffness and excellent impact resistance And corrosion resistance has become an advanced structural material with great application prospects, which has attracted extensive attention in the fields of aerospace, shipbuilding, rail transit and automobile manufacturing. Due to the complexity of the structure of the hyperhybrid composite laminate, its preparation and forming issues have attracted much att...

AI Technical Summary

Problems solved by technology

The disadvantage of the (1) method is that the use of rigid special-shaped molds to form curvature components cannot ensure constant pressure everywhere on the blank, and the interlayer performance of the formed components is poor

The (2) method uses two-way differential pressure forming, and the disadvantage is that the forming accuracy of the component cannot be guaranteed

The (3) method uses warm forming. The disadvantage is that it can only be used to form a super-hybrid composite laminate member with a thermoplastic resin-based composite material as the sandwich layer, and because the metal layer and the composite material layer cannot be deformed cooperatively, the interlayer bonding strength is affected. great influence

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