2014
DOI: 10.1177/0309324714524947
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Process modelling and optimization of keyhole plasma arc welding of thin Ti-6Al-4V

Abstract: This article presents a comprehensive piece of research work focused on the development, validation and application of finite element modelling capability for the prediction and optimization of robotic keyhole plasma arc welding of Ti-6Al-4V thin structures. Experimental and computational investigations were carried out to characterize, develop, optimize and validate various aspects of the finite element modelling. The experimental investigations cover the determination of welding parameter envelopes using a r… Show more

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Cited by 4 publications
(7 citation statements)
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“…In the T-joint with two partially overlapped passes, the residual stresses of the areas close to the first pass are more significant than those near the second pass. The results are in good agreement with the FE predicted results obtained in the NIMRC project work [21].…”
Section: Discussionsupporting
confidence: 88%
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“…In the T-joint with two partially overlapped passes, the residual stresses of the areas close to the first pass are more significant than those near the second pass. The results are in good agreement with the FE predicted results obtained in the NIMRC project work [21].…”
Section: Discussionsupporting
confidence: 88%
“…The measurement results were compared to the published numerical modelling results by Sun et al 22 The FE modelling was carried out using the full three-dimensional (3D) brick elements available in the welding-specific modelling software package SYSWELD, where the temperature-dependent thermal mechanical properties for Ti64 used are those which were available in the software. The FE model applied identical geometries as those of the sample in the synchrotron X-ray diffraction measurement, with temperature-dependent thermo-mechanical material properties used (e.g.…”
Section: Resultsmentioning
confidence: 99%
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“…[1][2][3][4] The main drivers are product design, high-performance materials, and technological processes. [5][6][7][8] During last decade, [9] thanks to the improvement in the structural optimization techniques it is also possible to reduce sections of product design. In the modern automotive industry, thicknesses lower than 3 mm are widely employed for structural assemblies, as chassis or suspensions.…”
Section: Introductionmentioning
confidence: 99%