Abstract
The metallic vapor and molten pool include plenty of welding information in the manufacturing process of MAG (Metal Active Gas Arc Welding)-laser hybrid welding. In this work, double high speed cameras are used to take the real-time images of the top-vapor and bottom-molten pool in the hybrid welding process. In order to monitor welding process status and weld quality, this paper proposes a method which combines the period of droplet transfer and droplet explosion. In time domain, the morphological features include the area of top-vapor, area of spatters, number of spatters and the average gray value of the bottom-molten pool, those features are used to research the stability of short circuiting transfer as well as the mechanism of the welding process. Besides, the welding process stability and weld quality are analyzed by features including the period of droplet transfer and droplet explosion in time and frequency domain. The experimental results show the period of droplet transfer and droplet explosion can effectively reflect welding process and weld quality. It provides a basis for monitoring and controlling MAG-laser hybrid welding process status.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.