Testing and Analysis of High-Speed Camera for Droplet Transition
The droplet transition of electrical arc welding is a complicated process that combines heat, mass and momentum transfer. A high-speed camera system with laser in the background is established to observe the fast changing process of molten droplet transition. A group of high-speed camera pictures which indicate the droplet gravity center is unstable in welding metal transfer process are taken and analyzed. The experimental results show that the electromagnetic force is the unstable root of the droplet gravity center.
Y. M. Wen et al., "Testing and Analysis of High-Speed Camera for Droplet Transition", Advanced Materials Research, Vols. 271-273, pp. 79-83, 2011