Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application
Abstract: In this work, three welding programs for orbital gas tungsten arc welding (GTAW), previously developed, were used, using pulsed current and increasing speed (#A), constant current (#B) and pulsed current and decreasing current (#C). One of these should be used for the propulsion system of the Satellite CBERS (China - Brazil Earth Resources Satellite). Welded joints using tubes of commercially pure titanium were obtained with these procedures, which were characterized by means of mechanical and metallographic tests. The obtained results showed that the three welding procedures produce welded joints free of defects and with adequate shape. Although small differences on mechanical properties and on microstructure have been observed, the three welding programs attained compatible results with international standards used in the aerospace segment. The welding program #B, due to the reduced heat input used, was considered to obtain slightly advantage over the others.
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Departamento de Ciência e Tecnologia Aeroespacial
2010
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oai:scielo:S2175-914620100002002112017-05-25Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace applicationGarcia,José A. Orlowski deLima,Gérson Luiz dePereira,Wilson D. BocallãoGuimarães,Valdir AlvesMoura Neto,Carlos deParanhos,Ronaldo Pinheiro R. Orbital GTAW Titanium Satellite Abstract: In this work, three welding programs for orbital gas tungsten arc welding (GTAW), previously developed, were used, using pulsed current and increasing speed (#A), constant current (#B) and pulsed current and decreasing current (#C). One of these should be used for the propulsion system of the Satellite CBERS (China - Brazil Earth Resources Satellite). Welded joints using tubes of commercially pure titanium were obtained with these procedures, which were characterized by means of mechanical and metallographic tests. The obtained results showed that the three welding procedures produce welded joints free of defects and with adequate shape. Although small differences on mechanical properties and on microstructure have been observed, the three welding programs attained compatible results with international standards used in the aerospace segment. The welding program #B, due to the reduced heat input used, was considered to obtain slightly advantage over the others.info:eu-repo/semantics/openAccessDepartamento de Ciência e Tecnologia AeroespacialJournal of Aerospace Technology and Management v.2 n.2 20102010-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000200211en10.5028/jatm.2010.02026710 |
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Garcia,José A. Orlowski de Lima,Gérson Luiz de Pereira,Wilson D. Bocallão Guimarães,Valdir Alves Moura Neto,Carlos de Paranhos,Ronaldo Pinheiro R. |
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Garcia,José A. Orlowski de Lima,Gérson Luiz de Pereira,Wilson D. Bocallão Guimarães,Valdir Alves Moura Neto,Carlos de Paranhos,Ronaldo Pinheiro R. Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| author_facet |
Garcia,José A. Orlowski de Lima,Gérson Luiz de Pereira,Wilson D. Bocallão Guimarães,Valdir Alves Moura Neto,Carlos de Paranhos,Ronaldo Pinheiro R. |
| author_sort |
Garcia,José A. Orlowski de |
| title |
Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| title_short |
Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| title_full |
Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| title_fullStr |
Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| title_full_unstemmed |
Characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| title_sort |
characterization of titanium welded joints by the orbital gas tungsten arc welding process for aerospace application |
| description |
Abstract: In this work, three welding programs for orbital gas tungsten arc welding (GTAW), previously developed, were used, using pulsed current and increasing speed (#A), constant current (#B) and pulsed current and decreasing current (#C). One of these should be used for the propulsion system of the Satellite CBERS (China - Brazil Earth Resources Satellite). Welded joints using tubes of commercially pure titanium were obtained with these procedures, which were characterized by means of mechanical and metallographic tests. The obtained results showed that the three welding procedures produce welded joints free of defects and with adequate shape. Although small differences on mechanical properties and on microstructure have been observed, the three welding programs attained compatible results with international standards used in the aerospace segment. The welding program #B, due to the reduced heat input used, was considered to obtain slightly advantage over the others. |
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Departamento de Ciência e Tecnologia Aeroespacial |
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2010 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462010000200211 |
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