Method for realization of co-curing of reinforcing rib web composite produced part by high strength soft tooling

Abstract

The invention discloses a method for realization of co-curing of a reinforcing rib web composite produced part by high strength soft tooling, rubber produced soft tooling is formed by use of a metal false piece, and the composite produced part is formed by use of the soft tooling. The soft tooling self is provided with a carbon fiber reinforced layer, the size of the product formed by use of the soft tooling can be guaranteed, outside pressure and temperature can be better transferred to the composite produced part, uneven partial pressure, heating rate hysteresis and other phenomena of the produced part can be avoided, the soft tooling is provided with a support structure, paving and preloading and other operation of the produced part can be completed on the soft tooling, the relative position precision and shape size of each part of the formed produced part can be ensured, the soft tooling can be used repeatedly, the reproduction is also more convenient, and the production cost and the manufacturing cycle are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of advanced composite material manufacturing, in particular to the manufacturing of high-performance carbon fiber composite structural parts in the aircraft, spacecraft and automobile industries. Background technique [0002] Resin-based carbon fiber composite materials have superior properties such as specific strength and specific stiffness, strong designability, good fatigue fracture resistance, corrosion resistance, and good dimensional stability. They are currently widely used in aviation, aerospace, transportation and other fields. High-performance structural materials. Among various carbon fiber composite molding processes, the autoclave process has uniform molding temperature and pressure, and has good adaptability to parts of different materials, shapes, sizes and structures. One of the main process methods of material components. [0003] With the increasing requirements for the strength and stif...

AI Technical Summary

Problems solved by technology

The disadvantages of using the mandrel mainly include the following three aspects: (1) Since the mandrel itself has a certain rigidity, it is difficult to achieve uniformity and accuracy in transmitting external pressure through the mandrel, and it is easy to cause the thickness of the T-shaped rib part of the part to be out of tolerance; ( 2) Since the core mold has a certain thickness, according to the heat conduction effect, the temperature rise rate of the T-shaped rib part of the part will lag behind that of other parts, thus affecting the internal molding quality of the part; (3) Since the core mold is made of metal, its own weight is relatively large , very inconvenient to operate

At the same time, the manufacturing and maintenance costs of the metal mandrel are relatively high, and the manufacturing cycle for repair or reprocessing is relatively long

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