Signal analysis for characterizing defects in HSTig arc welding systems

用于表征 HSTig 弧焊系统缺陷的信号分析

• 批准号: 466707-2014
• 负责人: Bui, Francis
• 金额: $ 1.82万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=561265
• 关键词: Signal; analysis; characterizing; defects; HSTig

HSTig Arc Welding is preferred in many industrial applications due to its superior performance advantages. Accordingly, HSTig has recently garnered significant interest from Mitsubishi Hitachi Power Systems Canada, Ltd. (MHPSCA), as part of the company's strategic vision on robotic automation in welding. In this context, an automated HSTig welding system should be able to deliver improved accuracy and productivity, by providing the ability to weld under a wide range of operating parameters, with various materials and objects. However, while HSTig is able produce good root bead penetration in many instances, some defective cases are inevitable, e.g., incomplete penetration and burning through. More importantly, these defective cases can severely affect the quality of the welding product. Thus, a system capable of efficiently preventing these cases is highly desirable. In response, this project evaluates the potential of characterizing the defects, based on the analysis of various signals being monitored in the system. This is a crucial first step, conducive to the systematic classification, and thus detection, of the defects in a timely and efficient manner.

由于其上级性能优势，HSTig电弧焊在许多工业应用中是首选。因此，HSTig最近引起了三菱日立电源系统加拿大有限公司（MHPSCA）的极大兴趣，作为该公司焊接机器人自动化战略愿景的一部分。在这种情况下，自动化HSTig焊接系统应该能够通过提供在宽范围的操作参数下焊接各种材料和物体的能力来提供改进的精度和生产率。 然而，虽然HSTig在许多情况下能够产生良好的根部焊道穿透，但一些缺陷情况是不可避免的，例如，不完全渗透和烧穿。更重要的是，这些缺陷情况会严重影响焊接产品的质量。因此，非常需要能够有效地防止这些情况的系统。作为回应，该项目根据对系统中监测的各种信号的分析，评估了表征缺陷的潜力。这是至关重要的第一步，有助于系统分类，从而及时有效地检测缺陷。