Preparation method of interplantation shape memory alloy wire layering composite and shaping mould

Abstract

The invention relates to a preparation method of interplantation shape memory alloy wire layering composite and a composite shaping mould for realizing the method. The method uses a specially designed mould and implants a group or several groups of shape memory alloy wires which are distributed in parallel in the single target layer or a plurality of target layers during layering of fiber reinforcement or the prepreg thereof, so that the method is suitable for mould pressing or resin vacuum auxiliary shaping. The shape memory alloy wire interplanted with the method can overcome the influence of mould pressing and resin flowing and is stably distributed at the preset position of composite thickness at designed pre-elongation amount to form composite with reliable and accurate vibration performance; the shaping mould is a set of combined metal matched moulds and comprises a set of steel frame assemblies, a metal surface plate patrix, a counterdie with a groove and a counterdie cover plate, wherein the steel frame assemblies can clamp the shape memory alloy wire and can control the elongation amount and the horizontal height thereof.

Description

technical field [0001] The invention relates to a controllable vibration fiber-reinforced composite material plate with internal shape memory alloy wire, and in particular to a forming method and a forming mold for the plate. Background technique [0002] Vibration control is a research direction of the adaptive performance of composite materials. Its main purpose is to reduce vibration amplitude, enhance damping and control mode shape, so as to eliminate and control structural vibration and noise. [0003] In composite structural products, vibration control has extremely important practical significance. For example, adding damping materials to large warehouses and missile launching devices can improve the working accuracy of the system; adding damping materials to car bodies, seats, and motor covers can help eliminate noise during work, especially in the body. Vibration active control technology can increase the comfort of drivers and passengers; while in some sports such...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: ①When the number of shape memory alloy wires embedded is large, the structure of the device is unavoidably cumbersome, there are too many manual operations during the processing, and deformation is easy to occur during the movement of the fixture, which is likely to cause changes in the SMA strain. , resulting in a large operational error; ② When preparing a laminated composite material, only a fixed single-layer SMA wire can be implanted into the same layer of the composite material, and the types of structures that can be realized are limited. If the multi-layer SMA wire Implantation according to the requirements, but also need to use other means

[0012] However, there is no report on a composite material solidification device that can control the shape memory alloy wire, and the small laboratory device that is mainly operated by hand is obviously not suitable for mass production, and it is necessary to consider designing a special device to simplify the process. Manufacturing processes

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