작은 그루브 각을 가지는 맞대기 P-GMA 용접에서의 용접전류에 관한 연구A Study on the Welding Current in Butt Joint P-GMA Welding with Acute Groove Angles

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The purpose of this paper is to propose a mathematical model of welding current for the P-GMAW by modifying the well known GMAW model. Welding power circuit is simply modeled as a RL electric circuit and solved as an ODE equation. The welding current depends on the joint shape, molten pool and welding parameters. To compare the molten pool effect to the welding current, CFD numerical simulation technique was adopted. Welding experiment is also conducted with the same welding parameters as used in numerical simulations to verify the proposed welding current model. The current model which is considered molten pool shape, is more fit to experiment result.
Publisher
대한용접·접합학회
Issue Date
2010-08
Language
Korean
Citation

대한용접·접합학회지, v.28, no.4, pp.55 - 60

ISSN
1225-6153
URI
http://hdl.handle.net/10203/96493
Appears in Collection
ME-Journal Papers(저널논문)
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