TY - JOUR
T1 - Statistical analysis of the effect of welding parameters on the tensile strength of titanium reinforced mild steel joints using taguchi's DoE
AU - Odiaka, Timothy
AU - Akinlabi, Stephen A.
AU - Madushele, Nkosinathi
AU - Fatoba, Olawale S.
AU - Hassan, Surnir
AU - Akinlabi, Esther T.
N1 - Funding Information: The authors would like to thank the South African Institute of Welding for the support in carrying out the welding experiments and Pan African University for Life and Earth Science Institute (PAULESI) for the financial support.
PY - 2021
Y1 - 2021
N2 - Gas Metal Arc Welding (GMAW) is one of the most widely used metal fusion welding processes in the industry. This is largely due to its relatively high quality, ease of use, affordability and suitability for joining many metals including mild steel. By Incorporating Taguchi's Design of Experiment to GMAW processes, high-quality response optimized welds can be obtained. The effect of welding parameters on the tensile strength of titanium-reinforced mild steel welds are investigated in this study. Using Taguchi's L4 Orthogonal arrays for experimental design, GMAW was carried out on reinforced butt and lap welded mild steel. The parameters of interest were welding voltage, welding current and titanium powder reinforcement. Taguchi's signal-to-noise ratios were calculated to obtain optimum welding parameters for tensile strength. Analysis of Variance (ANOVA) was used to determine any statistically significant welding parameter. The optimum parameters obtained for the reinforced butt welds were found to be 24 V, 130A and Ti 6-2-2-2-2 alloy. For the lap joints, the optimum parameters were found to be 26 V, 215A and Ti 6-2-2-2-2 alloy. However, ANOVA results indicate that none of the selected parameters were individually significant for both the butt and lap joints. This could be attributed to the small size of the orthogonal array used for this process of optimisation.
AB - Gas Metal Arc Welding (GMAW) is one of the most widely used metal fusion welding processes in the industry. This is largely due to its relatively high quality, ease of use, affordability and suitability for joining many metals including mild steel. By Incorporating Taguchi's Design of Experiment to GMAW processes, high-quality response optimized welds can be obtained. The effect of welding parameters on the tensile strength of titanium-reinforced mild steel welds are investigated in this study. Using Taguchi's L4 Orthogonal arrays for experimental design, GMAW was carried out on reinforced butt and lap welded mild steel. The parameters of interest were welding voltage, welding current and titanium powder reinforcement. Taguchi's signal-to-noise ratios were calculated to obtain optimum welding parameters for tensile strength. Analysis of Variance (ANOVA) was used to determine any statistically significant welding parameter. The optimum parameters obtained for the reinforced butt welds were found to be 24 V, 130A and Ti 6-2-2-2-2 alloy. For the lap joints, the optimum parameters were found to be 26 V, 215A and Ti 6-2-2-2-2 alloy. However, ANOVA results indicate that none of the selected parameters were individually significant for both the butt and lap joints. This could be attributed to the small size of the orthogonal array used for this process of optimisation.
KW - ANOVA
KW - GMAW
KW - Mild steel
KW - Taguchi
UR - http://www.scopus.com/inward/record.url?scp=85105571206&partnerID=8YFLogxK
U2 - 10.1016/j.matpr.2020.11.240
DO - 10.1016/j.matpr.2020.11.240
M3 - Conference article
AN - SCOPUS:85105571206
SN - 2214-7853
VL - 44
SP - 1202
EP - 1206
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
IS - 1
T2 - 11th International Conference on Materials Processing and Characterization
Y2 - 15 December 2020 through 17 December 2020
ER -