Simulation-based optimization for the boundary of the melting pool in MIG welding process

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Proceedings titleMathematical Modelling of Weld Phenomena 9
Conference9th International Seminar on Numerical Analysis of Weldability, September 28-30, 2009, Graz, Austria
Pages# of pages: 8
SubjectAluminum; aluminium alloy 6061; Mig Welding; Levenberg-Marquardt optimization method; melting pool boundary
AbstractIn this paper, the bead on plate MIG welding of the aluminum alloy 6061 is studied. The objective is to predict the boundary of the melting pool through the temperatures measured at several points on the welded part by thermocouples. The boundary of the melting pool is represented by a parametric curve whose parameters will be determined by an optimization loop coupled with heat simulations using the finite element software Sysweld. Both B-spline and Bezier curves with different configurations of thermocouple locations are used to study the sensitivity of the problem. The Levenberg-Marquardt optimization method is mainly used in this study as well as the genetic algorithm and gradient free optimization methods.
Publication date
AffiliationNational Research Council Canada; NRC Industrial Materials Institute
Peer reviewedNo
NRC number53422
NPARC number16606876
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Record identifier12d77dda-be99-4ca0-9ee8-9262ba27117a
Record created2011-03-07
Record modified2016-05-09
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