SciELO - Scientific Electronic Library Online

vol.17 issue1Caracterização microestrutural e propriedades mecânicas da liga de alumínio 2198-T851 em configuração tailored blank soldada por FSW - Friction Stir WeldingA piece of software to simulate operational characteristics of MIG/MAG welding author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Soldagem & Inspeção

Print version ISSN 0104-9224


CAMPANELLI, Leonardo Contri; SUHUDDIN, Uceu Fuad Hasan; SANTOS, Jorge Fernandez dos  and  ALCANTARA, Nelson Guedes de. Parameters optimization for friction spot welding of AZ31 magnesium alloy by Taguchi method. Soldag. insp. [online]. 2012, vol.17, n.1, pp.26-31. ISSN 0104-9224.

Friction spot welding (FSpW) is a solid state welding process suitable for producing spot-like joints, especially in lightweight materials, which are particularly interesting due to the weight saving potential. The plunging of an especially designed non-consumable and rotating tool creates a connection between overlapped sheets through frictional heat and plastic deformation. Minimum material loss is observed, and therefore a fully consolidated joint with flat surface (no keyhole) is obtained. In the current study, the effect of FSpW parameters, such as rotational speed, plunge depth and dwell time, on lap shear strength of AZ31 magnesium alloy joints was investigated. The optimization of input process parameters was carried out through Taguchi approach of DOE. Analysis of variance was applied to determine the individual importance of each parameter. Main effect plots were used to indicate the best levels for maximizing lap shear strength. The results show that tool plunge depth has the higher effect on the weld strength, followed by rotational speed and dwell time.

Keywords : Friction spot welding; AZ31 magnesium alloy; Taguchi method.

        · abstract in Portuguese     · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License