Laser cladding process inherently includes multi-scale, highly non-linear, and non-equilibrium transport phenomena due to non-uniform and rapid heat flow caused by the laser and the material interaction. Therefore, there is a growing demand to develop systematic modeling and simulation approaches for the multi-scale problem. To address this issue, a process model of solidification microstructure evolution has been studied by utilizing a phase-field method. The phase-field method has become a widely used computational tool for the modeling of solidification microstructure evolution with the advantage of avoiding tracking the interface explicitly and satisfying interfacial boundary conditions. In present work, the numerical solutions of a phase-field model have been analyzed. The linking of macro-scale process and solidification microstructure evolution was examined by considering the relationship of macro- and micro-parameters. The effects of laser power on clad height and surface roughness have also been studied. The predicted results for pure metal dendrite growth were compared with the microsolvability theory and a good agreement was found. Different solidification morphologies of different locations in the melt pool are also investigated. It was found that it is not the mass transfer but the heat transfer in the melt pool that dominates the solidification process.
Skip Nav Destination
ASME 2006 International Mechanical Engineering Congress and
Exposition
November 5–10, 2006
Chicago, Illinois, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4785-3
PROCEEDINGS PAPER
Macro/Micro-Scale Modeling of Laser Cladding Process Available to Purchase
Y. Cao
University of Missouri at Rolla
J. Choi
University of Missouri at Rolla
Paper No:
IMECE2006-14762, pp. 603-613; 11 pages
Published Online:
December 14, 2007
Citation
Cao, Y, & Choi, J. "Macro/Micro-Scale Modeling of Laser Cladding Process." Proceedings of the ASME 2006 International Mechanical Engineering Congress and Exposition. Heat Transfer, Volume 2. Chicago, Illinois, USA. November 5–10, 2006. pp. 603-613. ASME. https://doi.org/10.1115/IMECE2006-14762
Download citation file:
13
Views
Related Proceedings Papers
Related Articles
Numerical Modeling of Transport Phenomena and Dendritic Growth in Laser Spot Conduction Welding of 304 Stainless Steel
J. Manuf. Sci. Eng (August,2012)
Transport Phenomena and Keyhole Dynamics during Pulsed Laser Welding
J. Heat Transfer (July,2006)
Solidification Microstructure Evolution Model for Laser Cladding Process
J. Heat Transfer (July,2007)
Related Chapters
Modeling of SAMG Operator Actions in Level 2 PSA (PSAM-0164)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Thermal Interface Resistance
Thermal Management of Microelectronic Equipment
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine