Liquid forming device and liquid forming method for composite material stiffened plate

Abstract

The invention belongs to the forming technology of composite materials and relates to a liquid forming device and a liquid forming method for a composite material stiffened plate. The liquid forming device for the composite material stiffened plate comprises a glue solution cylinder, a packaging prefabricated member, a forming mould, a guide bottle, a connecting device and a vacuum pump, wherein the packaging prefabricated member is arranged on the forming mould with a groove to form a forming assembly; one end of the forming assembly is connected with the glue solution cylinder by a glue inlet tube to form an injection line; the other end of the forming assembly is connected to the guide bottle by a glue outlet tube to form a suction line, wherein the guide bottle is connected to the connecting device by the guide tube; and the connecting device is connected with the vacuum pump by a vacuum tube. According to the liquid forming device and the liquid forming method for the composite material stiffened plate provided by the invention, a rib structure stiffening fiber material is firstly placed in the groove of the forming mould for forming, a stressed-skin structure stiffening fiber material is spread and formed secondarily, and finally liquid resin is poured for integrally forming, so that precision of relative positions of the rib and the stressed-skin can be sufficiently ensured, the integrally formed appearance quality of the components is ensured, and a good practical application value is achieved.

Description

technical field [0001] The invention belongs to composite material molding technology, and relates to a liquid molding device and method for a composite material stiffened plate. Background technique [0002] Composite materials are widely used in the aerospace field due to their advantages such as high specific strength, high specific stiffness, fatigue resistance, good designability and easy overall forming, and their dosage has become an important indicator to measure the advanced nature of aircraft. Reinforced panel is one of the most commonly used structures of composite materials. It is widely used in large-scale airfoil structures and fuselage structures. The cross-section of the ribs includes I-shape and inverted T-shape. The application of composite materials in the aviation field has expanded from the load-bearing structure with small force and size (such as the rudder surface structure) to the main load-bearing structure with large force and size (such as empennag...

AI Technical Summary

Problems solved by technology

[0003] The traditional composite material reinforced wall panel structure adopts high-energy autoclave forming to ensure the quality of the final product, and the manufacturing cycle is long and the cost is high

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