CO2 lazerio parametrų įtaka beržinei fanerai skirtai reklamos produktų kūrimui

Abstract

Wood is a material that is easy to recycle and quickly decomposes in nature, so replacing plastics with wooden products in advertising could contribute to sustainable development and ecology. Infrared CO2 lasers (beam wavelength 10.6 µm) are widely used for producing and processing wood and advertising products. Laser engraving of the material involves the destruction of the surface of the wood structure and the carbonisation process, during which a certain depth and colour of the engraved design are obtained. Changes in colour and depth are influenced by the type of wood and its thickness, laser power, energy flow density, and movement speed. In this research, the image prepared by the Adobe Illustrator program was imported into the RDWorks V8 computer program, connected to the Bodor BCL-MU CO2 laser used for engraving. After creating the test samples, the influence of technological parameters (speed and power) of CO2 laser exposure on the colour and surface morphology of birch plywood was analysed, and the correlation between ΔE and Ra parameters was determined using a spectrophotometric comparative analysis of surface colour tones and a three-dimensional (3D) morphology measurement method. The obtained results were discussed, visual material was demonstrated, and the most optimal work parameters were determined.