五轴数控系统的三维曲面激光加工关键技术

Key Technologies of Laser Machining of 5-Axes CNC System for Three-Dimensional Freeform Surface

在介绍了产品三维曲面激光打标、模具型腔激光蚀纹和激光直线成形(LDS)活化激光加工的需求背景下,描述了以三维激光振镜系统和两轴数控回转台而构成的五轴数控三维曲面激光技术的基本原理,阐述了二维(2D)矢量纹理的纹理映射技术方法,论述了适用于五轴数控加工的整体分割技术方法和五轴数控加工等关键技术。实验证明了该设备关键技术的可靠性和加工质量的优良性,既能进行大批量的曲面高效打标和LDS活化加工,也能进行模具蚀纹的精密精细加工。

Under the introduction of background of demand pertaining to laser marking of three- dimensional （3D） freeform surface of product, laser texturing of mold cavity and laser direct structuring （LDS） of 3D-MID component, the principle of 3D freeform surface laser machining based on the 5-axes CNC system composed by both 3D laser galvanometer scanners and 2-axes CNC rotation table has been presented, the key technologies of texture mapping of two dimensional （2D） vector texture, the whole texture segmentation and 5-axes CNC machining, have been described. The experiments assure that the key technologies of the device is reliable, its machining quality is excellent. The device can laser mark and laser direct structure freeform surface in mass production efficiently, and can laser etch and texture mold cavity with accurate and fine performance.