Multiobjective optimization of GMAW process of the AA 6063-t5 alloy based on penetration and heat affected zone
DOI:
https://doi.org/10.3989/revmetalm.037Keywords:
Aluminum, GMAW, Optimization, Response Surface Methodology (RSM)Abstract
The selection of technological parameters in a welding process must be led to the optimized results of the operation. Penetration is one of the most decisive factors for the success of the joint. Another important factor is the Heat Affected Zone (HAZ), when the mechanical properties of this one are modified respecting to the base material. The way in which the technological variables of the process affects to both them, penetration and HAZ, are inverse in each case. This work presents an optimization methodology based on the Design of Experiments (DOE) and the Response Surface Method (RSM) of the GMAW process applied to the aluminum alloy AA 6063-T5. This research is focused to obtain penetration rates that make HAZ values to be suitable in current applications. Welding rate has been found to be the most significant technological parameter for controlling the process.
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