Research on Multi-Orbital Scanning Laser Bending Process of Polyvinyl Chloride Sheets

To make up for the lack of research on the laser bending process in the field of non-metals, this paper innovatively proposes a method to achieve controlled bending deformation of non-metallic components using laser processing of polyvinyl chloride (PVC) thin sheets. The main processing parameters affecting the deformation were analyzed by experimental comparison, and the multi-orbital laser application bending process was carried out with the illumination length and the thickness of the sheet as the variables, which revealed the deformation mechanism of PVC sheets under the laser effect. The surface morphology examinations of the exploration results were also compared to confirm the damage status of the objects. The bending mechanism was revealed by using the change in molecular chain status in the theory of polymer phase transition. This study proves the reliability of laser multi-orbital scanning of PVC sheets to achieve controlled bending deformation, providing a fundamental theoretical and experimental basis for the laser bending process of non-metallic components.