caa a22 4500 463226577 CHVBK 20180405153229.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-006-1287-x doi (NATIONALLICENCE)springer-10.1007/s10853-006-1287-x Welding of aluminium by the MIG process with indirect electric arc (MIG-IEA) [Elektronische Daten] [R. García, V. López, E. Bedolla] A novel modification of the metal inert gas (MIG) welding method, which was developed to weld metal matrix composites, was applied to join plates of aluminium 12.5mm thick. The plates were prepared with square edges and with a small single-V preparation with an angle of 45° in the upper part. The electric arc was indirectly applied on the single-V butt weld over strips of Al-2024 placed on top of the joint. Thermal analysis showed that the efficiency of the MIG process with indirect electric arc (IEA) is increased due to the reduction of heat losses and fully penetrated welds with a high depth-to-width ratio can be produced as compared to plain MIG welding in which partial penetration and lack of lateral fusion were observed. Microstructural examination of the welds revealed distinct characteristics such as partially melted grains trapped within the weld next to the fusion line for IEA welds and the typical epitaxial and columnar growth from the base metal partially melted grains for plain welds, i.e. direct application of the electric arc (DEA). Springer Science+Business Media, LLC, 2007 García R. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut López V. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut Bedolla E. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7956-7963 0022-2461 42:18<7956 2007 42 10853 https://doi.org/10.1007/s10853-006-1287-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1287-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- García R. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut NATIONALLICENCE 700 1- López V. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut NATIONALLICENCE 700 1- Bedolla E. Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, A.P. 888, 58 000, Morelia, Michoacán, México aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/18(2007-09-01), 7956-7963 0022-2461 42:18<7956 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer