SUNConferences, SAIIE NeXXXt

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The use of Analytical Hierarchy Process (AHP) for Welding Process Selection during Rail car Manufacturing
Ilesanmi Afolabi Daniyan, Khumbulani Mpofu, Adefemi Adeodu

Last modified: 2019-07-30


The welding process is a complex manufacturing process, which requires the deployment of multi-criteria decision support system amidst complex and conflicting welding processes, emerging technologies and materials. The Analytical Hierarchy Process (AHP) was employed for the investigation of the most suitable welding process for the assembly of the body shell of the rail car. The process attributes ranked include; crash worthiness, structural integrity, end of life, materials and its cost, welding position and joint orientation, weld quality, thickness of part, rate of material deposition as well as the welding cycle time. The development of the decision support system starts with the development of a conceptual framework that defines the gaol, criteria, welding methods as well as their interconnectivity. This was followed by the ranking of sets of alternatives and subsequent comparison by identifying the weights for each criterion while the difference between the alternatives and the ideal solution was determined. The successful completion of this work provided the integration of conceptual and mathematical support system into an organized approach for solving multi criteria decision for the rail car development. This will simplify the decision making process and enhance overall cost and production effectiveness through the deployment of the best technique.


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