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Title:A Thermal and Mechanical Model of Laser Cladding
Author(s):De Deus, Augusto Moita
Doctoral Committee Chair(s):Mazumder, Jyotirmoy
Department / Program:Mechanical Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Mechanical
Abstract:2D and 3D FE lagrangian models were developed using the Abaqus(TM) software. Simulation results were obtained for a system (cladding of C95600 copper on AA333 aluminum alloy) in which experiments had been successfully carried out. A simple model of dilution, i.e. the change in local composition due to mixing, is included. In 3D stress analysis, numerical convergence is seen to be a critical issue. A recommendation is made for modeling of LC and similar processes: (1) use 2D models to swiftly explore parameter space; (2) carry out 3D temperature simulations, with meshes matching the process geometry (curved boundaries) and; (3) perform the stress analysis with more regular meshes (with overall planar boundaries) that are more likely to lead to convergence.
Issue Date:2004
Description:186 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004.
Other Identifier(s):(MiAaPQ)AAI3130906
Date Available in IDEALS:2015-09-25
Date Deposited:2004

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