Stamping method and equipment for producing fiber-enhanced composite preforms

Abstract

The invention discloses a stamping method and stamping equipment for producing fiber-enhanced composite preforms. The existing fiber laying technology can be used for producing two-dimensional and simple three-dimensional preforms, but for more complicated geometrical shapes, such as a car B column, the existing fiber laying technology does not work. According to the stamping method, by a stamping technology, the preforms with the complicated geometrical shapes are manufactured; the preforms can be manufactured into superlight and superstrong composite components by using an autoclave and by a resin injection process and the like, so that the production cost of the components is greatly reduced, and the components are applied to civilian products, such as a car frame; the stamping method also can be applied to a stamping process of carbon fiber, glass fiber and other braided fabric; the stamping process simulates manual moulding; in the whole process, uniform in-plane and out-of-plane supports are given to a laying layer, so that excessive lateral slippage, corrugation and breakage of fibers in the stamping process are greatly reduced, and further the production efficiency is improved and automation, digitalization and unattended operation are achieved on the premise of ensuring the product quality.

Description

technical field [0001] The invention relates to a stamping method and equipment for producing preformed fiber composite materials. Background technique [0002] High-performance carbon fiber composite materials have extremely high specific stiffness (5 times that of steel) and specific strength (8 times that of steel). It also has better fatigue properties and chemical resistance than ordinary steel. Therefore, high-performance composite materials are widely used in aerospace, high-end automobiles, wind energy, luxury yachts, tidal power generation, sporting goods and military industries. Composite materials are widely used as load-bearing parts in Formula 1 racing car, BMW i8 coupe, Airbus A380 passenger plane and fan blades; , also received high attention. [0003] Due to the complex and changing multi-scale structure of composite materials, it cannot be fully automated from raw material production to final industrial application. Many processes, long cycle time, and l...

AI Technical Summary

Problems solved by technology

[0004] For the many disadvantages above, and the existing fiber laying technology can be effectively used to produce two-dimensional and simple three-dimensional (semi-cylindrical) preforms, while for more complex geometries, such as automotive B-pillars, existing Fiber laying technology can not be applied and other problems, this application provides a new process method and related equipment, which can greatly reduce the production cost of composite material parts, so that it can be applied to civilian products, such as car frame

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