CC BY
0Promoted performance of curved surface laser texturing by 7-axis opto-mechanical synchronization
W. Ma*, J. Zhang
Center for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, China
* mawenqi_hrb@163.com
Laser Surface Texturing (LST) is a potent technique for surface enhancement. However, achieving both precision and efficiency in LST of complex curved surfaces remains a challenge due to varying laser-matter interactions. This study introduces an innovative 7-axis on-the-fly LST system for such surfaces, integrating a 5-axis linkage motion platform with a 2-axis galvanometer. We develop an algorithm to decompose the spatial texture trajectory into low and high frequency components, enabling the derivation of a synchronized kinematic model for the 7-axis system. The experimental setup includes mechanical stages, optical paths, numerical control units, and processing software. A case study on freeform aluminum surfaces demonstrates the superior processing efficiency and accuracy of the 7-axis system over conventional 5-axis LST. Analyses reveal that reduced following errors significantly enhance curved surface texturing performance. This research offers a viable approach for highperformance LST of intricate curved surfaces.
