Expert optimization and prediction of bead volume of mild steel butt welded joint
International Journal of Development Research
Expert optimization and prediction of bead volume of mild steel butt welded joint
Received 19th November, 2018; Received in revised form 26th December, 2018; Accepted 13th January, 2019; Published online 28th February, 2019
Copyright © 2019, Odoemelam et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The volume of weld bead deposit on a welded joint, has a lot to say about the integrity of the weldment during its service life.Residual stresses, cracks etc can be greatly initiated with large weld bead. In this study, central composite design matrix was employed using Design Expert 7.01 software. A total of 20 sets of experiments were produced, the weld specimen was mild steel plate measuring 60mm x 40mm x 10mm. TIG welding machine with 100% Argon Shielding Gas was used for this experiment and at the end of the experiment, an optimum weld bead volume of1105.75mm3/s was obtained with a coefficient of determination (R2) value of 0.9744 usingresponse surface methodology (RSM) as the predictivemodeling tool. This quantity of bead volume is expected to contain the adequate molten metal that is required to make the desired bead penetration at a minimum cost with appropriate weld quality and productivity.
