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Addy, M, Adinyira, E and Ayarkwa, J (2018) Antecedents of building information modelling adoption among quantity surveyors in Ghana. Journal of Engineering, Design and Technology, 16(02), 313–26.

Ayadi, A, Nasraoui, H, Driss, Z, Bouabidi, A and Abid, M S (2018) Unsteady state of a solar chimney power plant accoupled with a turbine: case study. Journal of Engineering, Design and Technology, 16(02), 244–55.

Khorshid, E, Alfadli, A and Falah, A (2018) Application of constraint infeasibility detection methods in engineering design problems. Journal of Engineering, Design and Technology, 16(02), 285–312.

Oke, A E and Aghimien, D O (2018) Drivers of value management in the Nigerian construction industry. Journal of Engineering, Design and Technology, 16(02), 270–84.

Owusu-Manu, D, John Edwards, D, Pärn, E A, Antwi-Afari, M F and Aigbavboa, C (2018) The knowledge enablers of knowledge transfer: a study in the construction industries in Ghana. Journal of Engineering, Design and Technology, 16(02), 194–210.

Reda, R, Saad, M, Ahmed, M Z and Abd-Elkader, H (2018) Monitoring joint quality: Taguchi approach and structure investigation. Journal of Engineering, Design and Technology, 16(02), 211–32.

  • Type: Journal Article
  • Keywords: Materials characterization; Materials performance; Metallography; Process optimization; Taguchi analysis; ANOVA analysis;
  • ISBN/ISSN: 1726-0531
  • URL: https://doi.org/10.1108/JEDT-10-2017-0108
  • Abstract:
    This paper aims to monitor, evaluate and adjust the joint quality of dissimilar friction stir welded AA2024-T3 and AA7075-T6 Al alloys. Design/methodology/approach Taguchi analysis for design of experiments and ANOVA analysis were applied. Tensile test, visual inspection and macro and microstructure investigations were carried out at each welding condition. In addition, the grain size of stir zone and the value of heat input were measured. Findings Using Taguchi analysis, the optimum values of tool rotary speed, welding speed and axial load were 1,200 rpm, 100 mm/min and 1,300 kg, respectively, yielding the maximum tensile strength of the joints of 427 MPa. ANOVA analysis indicated that the most significant parameter on the joint strength is the tool rotary speed, followed by welding speed and axial load, with contributions of 67, 27 and 2 per cent, respectively. Best mixing between Al alloys in the stir zone with no defects was observed at moderate speeds because of proper heat input and grain size, resulting in high strength. Originality/value A relation between structure characteristics of the joint, the process parameters and the joint strength was established to control the joint quality.

Shafabakhsh, G, Kashi, E and Tahani, M (2018) Analysis of runway pavement response under aircraft moving load by FEM. Journal of Engineering, Design and Technology, 16(02), 233–43.

Wang, L (2018) The fuzzy in evaluation of concrete structure engineering. Journal of Engineering, Design and Technology, 16(02), 327–38.

Zhou, B, Xue, Y, Li, M, Li, Z, Zhang, X and Tao, Y (2018) Longitudinal jet ventilation calculation and application of long highway tunnel. Journal of Engineering, Design and Technology, 16(02), 256–69.