TY - GEN
T1 - Effect of current waveform on droplet oscillation in GMAW
AU - Xiao, Jun
AU - Chen, Shu Jun
AU - Zhang, Guang Jun
AU - Zhang, Yu Ming
N1 - Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - The active droplet oscillation is a method previously proposed to detach the droplet at currents below the transition current. In this method, a droplet oscillation is actively excited when the current is switched from the exciting peak level to base level. The downward momentum of the droplet is utilized to enhance the droplet detachment. In this work, the current waveform is modified to achieve stronger droplet oscillation with lower average current. The critical change is to separate the droplet growing and exciting processes such that the two processes can be controlled independently. The heat input can thus be reduced, and stronger droplet oscillation is obtained. A further optimized current waveform is proposed to maximize the droplet oscillation energy despite the growing current level.
AB - The active droplet oscillation is a method previously proposed to detach the droplet at currents below the transition current. In this method, a droplet oscillation is actively excited when the current is switched from the exciting peak level to base level. The downward momentum of the droplet is utilized to enhance the droplet detachment. In this work, the current waveform is modified to achieve stronger droplet oscillation with lower average current. The critical change is to separate the droplet growing and exciting processes such that the two processes can be controlled independently. The heat input can thus be reduced, and stronger droplet oscillation is obtained. A further optimized current waveform is proposed to maximize the droplet oscillation energy despite the growing current level.
KW - Current waveform
KW - Droplet oscillation
KW - Exciting rising level
UR - http://www.scopus.com/inward/record.url?scp=84874245278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874245278&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.652-654.2285
DO - 10.4028/www.scientific.net/AMR.652-654.2285
M3 - Conference contribution
AN - SCOPUS:84874245278
SN - 9783037856208
T3 - Advanced Materials Research
SP - 2285
EP - 2288
BT - Advances in Materials and Materials Processing
T2 - 2012 3rd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2012
Y2 - 22 December 2012 through 23 December 2012
ER -