Ultrasonic Real-time quality monitoring of aluminum spot weld process

铝点焊过程超声波实时质量监控

• 批准号: 372571-2008
• 负责人: Maev, Roman
• 金额: $ 7.29万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=483946
• 关键词: Ultrasonic; Real; time; quality; monitoring

Recent increase in aluminum spot welding applications has created a high demand for the means of quality assurance of aluminum spot welds. The in-depth understanding of metallurgical and mechanical properties of aluminum joints is needed to properly characterize the weld quality. The analysis of growth, deformation and fracture of A1 spot-welded joints, and use of this knowledge to make predictions about the weld performance, would greatly enhance the safety of automotive structures. That is why development of real-time acoustic method for metallurgical analysis of spot grain structure and fatigue properties would result in creation of the unique database of A1 spot weld properties and acoustic data for spot weld characterization.

近年来，铝点焊应用的增加对铝点焊的质量保证手段提出了很高的要求。为了正确地表征焊接质量，需要深入了解铝接头的冶金和力学性能。对A1点焊接头的生长、变形和断裂进行分析，并利用这些知识对焊接性能进行预测，将大大提高汽车结构的安全性。这就是为什么开发实时声学方法对点焊组织和疲劳性能进行冶金分析将导致创建独一无二的A1点焊性能数据库和用于点焊表征的声学数据。