作者:吕晶薇， 黄致远， 康 鹏， 俞中委， 邵广斌
Authors:Lv Jing-wei, HUANG Zhi-yuan, KANG Peng, YU Zhong-wei, SHAO Guang-bin摘要:摘 要:针对面投影光固化技术受限于投影分辨率的问题，为研究面投影成型尺寸与成型精度之间的固有矛盾，提出了面投影光固化增材制造的微结构拼接成型技术。在搭建的高精度面投影光固化成型光学系统基础上，提出了面单固化层多重拼接控制方法，实现了投影系统与位移系统的协同控制。研究了像素点密度与能量扩散的相互作用规律，采用拼接界面的灰度调制方法，提高了能量的均匀性进而提升了拼接界面的质量和制造精度。实验验证了拼接成型技术的可行性和光学平台的拼接性能，为研究复杂三维微结构宏-微一体化增材制造提供了必要的理论与技术基础。
Abstract:Abstract:The development of projection stereolithography (PSL) technology is mainly limited by the projection resolution.To resolve the inherent contradiction between surface projection molding size and molding accuracy, a microstructure splicing molding technology is proposed.On the basis of the high-precision PSL molding optical system, a multi-splicing control method for a single-surface solidified layer is proposed based on the light path system, which realizes the coordinated control of the projection system and the displacement system.The law of interaction between different pixel densities and energy is studied. The grayscale modulation of the splicing interface is used to enhance the uniformity of energy and improve the quality and manufacturing accuracy of the splicing interface. The experiment verified the feasibility of the splicing technology and the splicing performance of the optical platform, and provided the necessary theoretical and technical basis for studying the macro-micro integrated additive manufacturing of complex three-dimensional microstructures.

PDF全文下载地址:

可免费Download/下载PDF全文