Comparison between in - line ultrasonic monitoring of the spot weld quality and conventional NDT methods applied in a real production environment
Real-time spot weld characterization using ultrasound is a reality in todays automotive industry. The main goal of such testing systems is to reduce operational time and provide reliable means of quality inspection. Currently, several R&D groups are working to develop real-time ultrasonic system for spot weld quality monitoring, because potentially it allows one to eliminate expensive destructive tests, reduce the amount of off-line ultrasonic inspections and ensure the inspection quality. The purpose of this paper is to analyze preliminary results of a single in-line ultrasonic station, installed at a real body-in-white plant condition, and perform a comparison of these results with the conventional quality assurance methods currently used at the plant, such as ultrasonic inspections (manual equipment strategically placed in the welding line), destructive (tensile tests) and metallographic tests. The results obtained from this comparison can show us if it is possible to apply this new technique in a real production environment, with the same reliability that we are used to experience in our current inspection structure. It is believed that the obtained results will provide more flexibility for the plants to work with available ultrasonic inspection equipment, will increase the reliability and the control in the most critical regions of the bodies and will also decrease the inspection time during production.
in-line spotweld ultrasound.
Danilo STOCCO Roman Gr. MAEV Andriy M. CHERTOV Gilmar F. BATALHA
Mercedes-Benz do Brasil Ltda 562 Alfred Jurzykowski Av., S?o Bernardo do Campo, SP, Brazil University of Windsor, Canada; University of S(a)o Paulo, Brazil;
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1349-1356
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）