Simultaneous Seamtracking and Weld Penetration Control

本研究将探讨同步适应控制 在焊接过程的两个变量，焊缝跟踪和焊缝 穿透控制 这将通过使用高级 红外传感技术，以监测热场在 焊接池附近。 虽然理论上的解决方案和 实验充分同意，能够动态控制 焊缝跟踪或渗透控制， 两个或多个扰动的识别、分类和校正 在理论和实践分析中提出了一个巨大的问题。 本研究将发展理论和实验 用于识别、分类和理解地表变化的工具 温度分布由同时， 焊接熔深和焊炬中的有意引入误差 位置 传热的理论模型将被推进到 描述表面温度分布，同时 过程中的扰动。 计算机层次分析法 温度场分析及控制实施 将制定应对措施。 这项研究的最终结果是 将是科学基础的进步， 可以生产出能够消除缺陷的机器， 焊接和提高焊接工艺的生产率。

The research will investigate simultaneous adaptive control over two variables of the welding process, seam tracking and weld penetration control. This will be accomplished by using advanced infrared sensing techniques to monitor the thermal field in the vicinity of the weld pool. While both theoretical solutions and experiment agree sufficiently to enable dynamic control of either seam tracking or penetration control, the simultaneous identification, sorting and correction of two or more perturbations presents an immense problem in theoretical and practical analysis. This research will develop the theoretical and experimental tools to identify, sort and understand changes in surface temperature distributions resulting from simultaneous, intentionally induced errors in weld penetration and torch position. Theoretical models of heat transfer will be advanced to describe the surface temperature distribution for simultaneous perturbations in the process. Computer hierarchial methods of analyzing the thermal fields and the implementation of the control responses will be developed. The ultimate result of this research will be the advancement of the scientific basis upon which future machines may be produced that are capable of eliminating defective welds and increasing the productivity of the welding process.