Volume 1, Issue 1 (Oct 2004)                   IJMSE 2004, 1(1): 9-15 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
CHOO R.T.C., TOGURI J.M.. ELECTRODE EFFECT ON FLOW CONDITIONS IN ARGON GAS METAL ARE MODELING. IJMSE 2004; 1 (1) :9-15
URL: http://ijmse.iust.ac.ir/article-1-89-en.html
ELECTRODE EFFECT ON FLOW CONDITIONS IN ARGON GAS METAL ARE MODELING
CHOO R.T.C. , TOGURI J.M.
Abstract:   (43655 Views)
A two dimensional mathematical model has been developed for describing the temperature, flow, and electric fields in the are column of the Gas Metal Arc Welding (GMAW) of aluminum in argon shielding gas using axisymmetric Navier-Stokes, Maxwell, and differential thermal energy equations. The predicted results are most sensitive to the cathode spot radius and an optimum cathode spot radius exists on the basis of the minimum arc power consumption. The consumable electrode shape change due to droplet detachment is simulated in a quasi-steady manner using different electrode diameters. The change in electric field profile with different electrodes gives rise to large changes in flow conditions. This flow perturbation plus the non-uniform and transient J*B force field are suspected to enhance the recoil experience by the droplet on detachment, thus leading to violent and chaotic metal transfer in GMAW.
Keywords: Non, thermionic cathode, Metal transfer, GMAW modeling, Cathode spot size, Consumable electrode
     
Type of Study: Research Paper | Subject: Ceramics
Add your comments about this article : Your username or Email:
CAPTCHA
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb