Velocity and temperature fields, and shapes of the fusion zone in welding dissimilar metals are systematically investigated. Fluid flow in the molten pool is driven by the Marangoni force in different directions and magnitudes on the flat free surface. To interpret clearly without loss of generality, the three-dimensional quasi-steady welding is simulated by an unsteady two-dimensional process. Transport process on the maximum cross section of the molten region (or a cross section of the fusion zone) therefore is predicted. Interfaces between immiscible dissimilar metals and solid and liquid are, respectively, calculated by the volume of fluid and enthalpy methods. The computed results show different flow and thermal fields and molten regions of dissimilar metals as functions of dimensionless surface tension coefficients, viscosities, melting temperatures, and thermal conductivities of dissimilar metals and distinct phases, and beam power, welding speed, and the energy distribution parameter. The predicted shapes of fusion zones in welding pure irons, and aluminum to iron, agree with the experimental results.
Skip Nav Destination
pswei@mail.nsysu.edu.tw
Close
Sign In or Register for Account
Article navigation
Research Papers
Mass, Momentum, and Energy Transport in a Molten Pool When Welding Dissimilar Metals
F. K. Chung
,
F. K. Chung
Department of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.
Search for other works by this author on:
P. S. Wei
P. S. Wei
Department of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.
pswei@mail.nsysu.edu.tw
Search for other works by this author on:
F. K. Chung
Department of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.
P. S. Wei
Department of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.
pswei@mail.nsysu.edu.tw
J. Heat Transfer. May 1999, 121(2): 451-461 (11 pages)
Published Online: May 1, 1999
Article history
Received:
March 11, 1998
Revised:
November 1, 1998
Online:
December 5, 2007
Citation
Chung, F. K., and Wei, P. S. (May 1, 1999). "Mass, Momentum, and Energy Transport in a Molten Pool When Welding Dissimilar Metals." ASME. J. Heat Transfer. May 1999; 121(2): 451–461. https://doi.org/10.1115/1.2825999
Download citation file:
- Ris (Zotero)
- Reference Manager
- EasyBib
- Bookends
- Mendeley
- Papers
- EndNote
- RefWorks
- BibTex
- ProCite
- Medlars
Close
Sign In
Get Email Alerts
Cited By
Evolutionary Design Method for a Conducting Solid Cooled by Combined Free Convection and Radiation
J. Heat Transfer (April 2021)
Conduction in Rings with Internal Heat Generation
J. Heat Transfer
Related Articles
Transport Phenomena and Keyhole Dynamics during Pulsed Laser Welding
J. Heat Transfer (July,2006)
Scaling Weld or Melt Pool Shape Affected by Thermocapillary Convection With High Prandtl Numbers
J. Heat Transfer (April,2012)
Surface Ripple in Electron-Beam Welding Solidification
J. Heat Transfer (November,1996)
Analysis of Solid–Liquid Phase Change Under Pulsed Heating
J. Heat Transfer (March,2007)
Related Chapters
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Plate Exchangers
Heat Exchanger Engineering Techniques