Device and method for cutting carbon fiber composite material under induction of optical fiber pulse laser

Abstract

The invention discloses a device and a method for cutting a carbon fiber composite material under induction of optical fiber pulse laser. The device comprises an X-Y platform and a Z axis, wherein a carbon fiber composite material laminated plate which is clamped through a clamp is arranged on the X-Y platform; an optical fiber pulse laser unit is arranged at one side of a three-axis numerical-control workbench; a laser beam emitted by the optical fiber pulse laser unit is focused on the surface of the carbon fiber composite material laminated plate through a reflecting mirror, a filter and a lens; and an oxygen-containing jet nozzle is arranged below the lens. The method disclosed by the invention is characterized in that a whole laser irradiation region is finally cut through along with layer-upon-layer penetration of oxidization reaction of the carbon fiber composite material according to the structure of the carbon fiber composite material laminated plate and characteristics of the oxidization reaction, so that the whole laser irradiation region is finally cut through, and therefore, laser cutting of the carbon fiber composite material is completed. Under induction of irradiation of the optical fiber pulse laser unit, materials are removed by oxidization reaction of carbon fibers in the carbon fiber composite material laminated board and resin pyrolysis carbides, and the materials are cut through while an oxidization reaction area extends in the depth direction, so that cutting processing is completed.

Description

technical field [0001] The invention belongs to laser cutting technology, and specifically refers to a method of using optical fiber pulse laser to induce the temperature rise of carbon fiber composite materials, utilizing the oxidation reaction characteristics of carbon fiber and resin to realize the removal of carbon fiber and resin, and used for cutting processing of carbon fiber composite material laminates. Background technique [0002] Carbon Fiber Reinforced Plastic (CFRP) has been widely used in aerospace, national defense, transportation and other fields due to its superior performance. With the improvement of requirements for lightweight, safety, economy, and flight distance, the application ratio of CFRP in military and civil aircraft has increased sharply, from aircraft skins to aircraft central wing boxes, engine fan rotor blades, nacelles and reflectors. Pushing device and other parts. The amount of CFRP has become an important symbol of the advancement in the...

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Problems solved by technology

[0006] The present invention aims at the present situation that low damage and high efficiency cannot be satisfied at the same time when laser cutting carbon fiber composite laminates. According to the characteristics that carbon fibers are easily oxidized and the oxidation initiation temperature is low when laser irradiates CFRP in air and oxygen-enriched atmosphere, it proposes Cutting device and cutting method for removing carbon fiber and resin by oxidation reaction induced by fiber pulse laser in oxygen atmosphere

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