EPJ Web of Conferences
Volume 6, 2010ICEM 14 – 14th International Conference on Experimental Mechanics
|Number of page(s)||7|
|Section||Welds and Welding Process|
|Published online||10 June 2010|
Hot-crack test for aluminium alloys welds using TIG process
Laboratoire de Mécanique et de Génie Civil LMGC- UMR5508,
Univertsité Montpellier 2, Montpellier,
a e-mail: email@example.com
Hot cracking is a critical defect frequently observed during welding of aluminium alloys. In order to better understand the interaction between cracking phenomenon, process parameters, mechanical factors and microstructures resulting from solidiﬁcation after welding, an original hot-cracking test during welding is developed. According to in-situ observations and post mortem analyses, hot cracking mechanisms are investigated, taking into account the interaction between microstructural parameters, depending on the thermal cycles, and mechanical parameters, depending on geometry and clamping conditions of the samples and on the thermal ﬁeld on the sample. Finally, a process map indicating the limit between cracking and non-cracking zones according to welding parameters is presented.
© Owned by the authors, published by EDP Sciences, 2010
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