Fiber composite material ultrasonic-assisted compression molding device and forming method

Abstract

The invention relates to a fiber composite material ultrasonic-assisted compression molding device and a forming method and belongs to the field of machining engineering. The device comprises a mold set, adjustable ejector rods, ultrasonic amplitude transformers, a base, an ultrasonic generator, adhesive injection openings and a temperature control opening, wherein the mold set is supported by at least four adjustable ejector rods; the ultrasonic amplitude transformers make contact with the mold set; the adjustable ejector rods and the ultrasonic amplitude transformers are fixed onto the base; and the ultrasonic generator is mounted below the base and connected with the ultrasonic amplitude transformers through conducting wires. The fiber composite material ultrasonic-assisted compression molding device and the forming method have the advantages that the structure is novel, ultrasonic waves facilitate flowing of an adhesive material, and a traditional method for facilitating adhesive flowing by controlling the temperature in the fiber forming process is changed completely. In the forming process, defects such as holes generated during pouring can be reduced, the binding force between adhesive and fibers can be increased in an ultrasonic mode, the forming quality of a fiber composite material is improved, the forming efficiency of the fiber composite material is also improved, and the initial melting external temperature of the material is lowered.

Description

technical field [0001] The invention belongs to the field of mechanical processing engineering, and in particular relates to an ultrasonic-assisted molding fiber composite material device and a molding method, which are used for processing various adhesive fiber composite material plate parts with plane or curved shapes. Background technique [0002] Most fiber materials have excellent properties such as high specific strength, high specific modulus, corrosion resistance, fatigue resistance, small thermal expansion coefficient, creep resistance, heat transfer and electrical conductivity, etc. It has been applied in aerospace, national defense, construction, automobile and other fields, and has broad development prospects. At present, the molding process of composite materials with the most application potential in the industrial field includes rapid RTM molding process, prepreg rapid compression molding process PCM, sheet molding compound SMC and vacuum assisted resin transf...

AI Technical Summary

Problems solved by technology

At present, the molding process of composite materials with the most application potential in the industrial field includes rapid RTM molding process, prepreg rapid compression molding process PCM, sheet molding compound SMC and vacuum assisted resin transfer molding (VARI), etc., but in the above The above-mentioned technologies generally require high heating temperature, low surface quality precision of molded parts, and defects such as holes inside the molded parts, which often affect the application of composite materials.

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