3D printing equipment capable of realizing microwave irradiation and printing method

Abstract

The invention discloses 3D printing equipment capable of realizing microwave irradiation and a printing method. The 3D printing equipment comprises a printing motion platform, a direct-writing type graphene 3D printing head and a microwave irradiation system; the direct-writing type graphene 3D printing head and the microwave irradiation system are arranged above the printing motion platform; an outlet of the direct-writing type graphene 3D printing head faces the printing motion platform; and the printing motion platform is irradiated with microwaves emitted by the microwave irradiation system.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a microwave irradiation 3D printing device and a printing method. Background technique [0002] In recent years, in order to improve the load capacity and flight distance of large aircraft, resin-based carbon fiber reinforced composite materials have been widely used in aircraft, but compared with traditional metal materials, the resin matrix of composite materials has poor conductivity, making composite materials It is more sensitive to lightning strike damage. When the lightning strike current acts, the current is difficult to be exported on the surface of the material and a large amount of Joule heat is generated, resulting in serious breakdown, decomposition, burning, carbonization and other ablation behaviors, which seriously affect the performance of the aircraft in thunderstorm weather. Service safety. At present, fiber-reinforced resin-based composite mat...

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Problems solved by technology

However, these two protection methods in the current research are still difficult to replace the traditional metal protection materials as the means of lightning strike protection for aircraft composite materials. The conductive carbon material is used as a conductive protective layer in the form of bucky paper. Although its surface conductivity can be increased to 3-200S / cm, there is still a large gap with metal conductive materials; on the other hand, the molding process is not suitable for large-scale composite structures. application

Composite structures that require lightning strike protection in aircraft structures, such as skins, wings, cabins, and landing gears, are often large in size. However, the non-metal-based protection methods currently studied are not suitable for large-scale composite material manufacturing requirements.

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