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Application of Taguchi approach to optimize friction stir welding parameters of polyethylene

Abstract : This paper presents experimental and numerical results of butt friction stir welding of high density polyethylene. The FSW designed tool insulates the welded samples and preserves the heat gained from friction thus avoiding the appearance of blisters and splits after welding. The experimental tests, conducted according to combinations of process factors such as rotation speed, welding speed, pin diameter and hold time at beginning welding, were carried out according the Taguchi orthogonal table L27 in randomized way. Temperatures in the joint during the welding operation and flow stresses from the tensile tests of welded samples were measured and variances were analyzed. Identified models were used to simulate, by finite elements, the tensile tests performed on specimens having a weld cordon in their active area. The results show coherence between the numerical predictions and experimental observations in different cases of weld cordon mechanical behaviour.
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Submitted on : Monday, September 2, 2019 - 12:54:22 PM
Last modification on : Sunday, June 26, 2022 - 4:50:27 AM

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M.A. Rezgui, M. Ayadi, Abel Cherouat, K. Hamrouni, A. Zghal, et al.. Application of Taguchi approach to optimize friction stir welding parameters of polyethylene. EPJ Web of Conferences, EDP Sciences, 2010, 6, pp.07003. ⟨10.1051/epjconf/20100607003⟩. ⟨hal-02276163⟩



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