EPJ Web of Conferences
Volume 6, 2010ICEM 14 – 14th International Conference on Experimental Mechanics
|Number of page(s)||8|
|Section||Welds and Welding Process|
|Published online||10 June 2010|
Application of Taguchi approach to optimize friction stir welding parameters of polyethylene
UR-MSSDT, ESSTT, 5 Av Taha Hussein, Montfleury
2 UTT- GAMMA INRIA, Domaine de Voluceau-Rocquencourt, 78153 Le Chesnay, France,
3 ISET Jendouba, Jendouba Nord Campus Universitaire 8019 TUNISIE
a e-mail : Mohamedali.firstname.lastname@example.org
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.
Key words: Friction Stir Welding / Polyethylene / ANOVA / Taguchi’s Design / Experiment / Behaviour Model
© Owned by the authors, published by EDP Sciences, 2010
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