GOALI: 3-D Welding as New Rapid Prototyping Technique

这个与工业学术联系机会(GOALI)项目将使用一种新的机器视觉传感系统，该系统采用激光背光技术来捕捉金属熔滴从熔化极气体保护焊系统到三维几何图形中受控沉积的转移。从这些实验中获得的知识将提供更好的了解液滴形成的物理和沉积机制。预计将开发一种高速图像处理算法来从这种高温、困难的环境中提取关键的几何信息。金属液滴的转移对最终产品的质量起着至关重要的作用。由于焊接参数之间存在强耦合，因此设计了实验工作，试图隔离它们对熔滴形成和沉积的影响。基于这种受控液滴过程的新的分层沉积方法具有很高的工业应用潜力，并在这个目标研究项目中展示了业界的承诺。

This Grant Opportunities for Academic Liaison with Industry (GOALI) project will use a new machine vision sensing system designed with laser backlighting techniques to capture the transfer of metal droplets from a Gas Metal Arc welding system to controlled deposition in a 3-D geometry. The knowledge gained from these experiments will provide a better understanding of the physics of the droplet formation and the deposition mechanisms. It is expected that a high speed image-processing algorithm will be developed to extract key geometrical information from within this high temperature, difficult environment. The transfer of the metal droplets plays a fundamental role in determining the quality of the final product. Due to the strong coupling that exist among the welding parameters, the experimental work is designed in an attempt to isolate their effects upon the droplet formation and deposition. The new layered deposition method based upon this controlled droplet process has high potential for industrial applications, and industry commitment is demonstrated in this GOALI research project.