System and method for jet-assisted modulated laser low-damage processing of carbon fiber composite material

Abstract

The invention discloses a system and method for jet-assisted modulated laser low-damage processing of a carbon fiber composite material. A laser focusing jet-assisted cutting unit comprises a focusingdevice and a jet-assisted device, wherein the focusing device comprises a focusing lens and a protective lens which are arranged in a lens cone, and a reflecting mirror which is obliquely arranged atan angle of 45 degrees is arranged above an upper cone opening of the lens cone; the jet-assisted device comprises a nozzle and a fluid supply mechanism, the fluid supply mechanism communicates withthe lens cone through a pipeline, and the nozzle is installed at a lower cone opening of the lens cone through a conical connector; a laser is arranged on one side of the reflecting mirror, a laser beam emitted by the laser is reflected by the reflecting mirror and then enters the lens cone, and the laser beam is focused in jet flow sprayed from the nozzle after passing through the focusing lens and the protective lens; and a workpiece running unit comprises a workbench arranged below the nozzle, a clamp for clamping the carbon fiber composite material on a sawtooth frame is arranged on the workbench, and the workbench runs the carbon fiber composite material to the cutting range of the laser beam.

Description

technical field [0001] The invention relates to laser cutting processing technology, in particular to a system and method for jet-assisted modulated laser low-damage processing carbon fiber composite materials. Background technique [0002] In order to solve a series of problems that are prone to occur in contact machining of carbon fiber composite materials (such as the tool is easily worn, the composite material is delaminated and the fibers are easily broken, the processing quality is not high, and the performance of the material is deteriorated after processing, etc.), the authorization announcement The invention application with the number CN 206747799U discloses a "Fiber Optic Pulse Laser Induced Cutting Device for Carbon Fiber Composite Materials". For the laminate, a fiber pulse laser is installed on one side of the three-axis CNC workbench. The laser beam emitted by the fiber pulse laser is focused on the surface of the carbon fiber composite laminate through severa...

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Problems solved by technology

[0002] In order to solve a series of problems that are prone to occur in contact machining of carbon fiber composite materials (such as the tool is easily worn, the composite material is delaminated and the fibers are easily broken, the processing quality is not high, and the performance of the material is deteriorated after processing, etc.), the authorization announcement The application for invention with the number CN 206747799U discloses a "device for cutting carbon fiber composite materials induced by optical fiber pulse laser". For the laminate, a fiber pulse laser is installed on one side of the three-axis CNC workbench. The laser beam emitted by the fiber pulse laser is focused on the surface of the carbon fiber composite laminate through several mirrors, lenses and lenses. The other side is provided with an oxygen-containing jet supply device, the oxygen-containing jet supply device is connected with the oxygen-containing jet nozzle, the oxygen-containing jet nozzle is arranged under the lens, and the airflow direction of the oxygen-containing jet nozzle is perpendicular to the laser beam of the carbon fiber composite laminate. beam coaxial

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