Ultrasonic inspection of AA6013 laser welded joints
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | http://repositorio.unifesp.br/handle/11600/6605 http://dx.doi.org/10.1590/S1516-14392011005000057 |
Resumo: | Interest in laser beam welding for aerospace applications is continuously growing, mainly for aluminum alloys. The joints quality is usually assessed by non-destructive inspection (NDI). In this work, bead on plate laser welds on 1.6 mm thick AA6013 alloy sheets, using a 2 kW Yb-fiber laser were obtained and inspected by pulse/echo ultrasonic phased-array technique. Good and poor quality welds were inspected in order to verify the limits of inspection, comparing also to X-ray radiography and metallographic inspections. The results showed that ultrasonic phased array technique was able to identify the presence of grouped porosity, through the attenuation of the amplitude of the echo signal. This attenuation is attributed to the scattering of the waves caused by micro pores, with individual size below the resolution limit of the equipment, but when grouped, can cause a perceptive effect on the reflection spectra. |
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Passini, AdrianoOliveira, Aline Capella de [UNIFESP]Riva, RudimarTravessa, Dilermando Nagle [UNIFESP]Cardoso, Kátia Regina [UNIFESP]Empresa Brasileira de Aeronáutica S.A.Instituto de Estudos AvançadosUniversidade Federal de São Paulo (UNIFESP)2015-06-14T13:43:15Z2015-06-14T13:43:15Z2011-09-01Materials Research. ABM, ABC, ABPol, v. 14, n. 3, p. 417-422, 2011.1516-1439http://repositorio.unifesp.br/handle/11600/6605http://dx.doi.org/10.1590/S1516-14392011005000057S1516-14392011000300022.pdfS1516-1439201100030002210.1590/S1516-14392011005000057WOS:000296277000022Interest in laser beam welding for aerospace applications is continuously growing, mainly for aluminum alloys. The joints quality is usually assessed by non-destructive inspection (NDI). In this work, bead on plate laser welds on 1.6 mm thick AA6013 alloy sheets, using a 2 kW Yb-fiber laser were obtained and inspected by pulse/echo ultrasonic phased-array technique. Good and poor quality welds were inspected in order to verify the limits of inspection, comparing also to X-ray radiography and metallographic inspections. The results showed that ultrasonic phased array technique was able to identify the presence of grouped porosity, through the attenuation of the amplitude of the echo signal. This attenuation is attributed to the scattering of the waves caused by micro pores, with individual size below the resolution limit of the equipment, but when grouped, can cause a perceptive effect on the reflection spectra.Empresa Brasileira de Aeronáutica S.A.Instituto de Estudos AvançadosUniversidade Federal de São Paulo (UNIFESP) Departamento de Ciência e TecnologiaUNIFESP, Depto. de Ciência e TecnologiaSciELO417-422engABM, ABC, ABPolMaterials Researchultrasonic inspectionpulselaser weldingaluminum alloyUltrasonic inspection of AA6013 laser welded jointsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALS1516-14392011000300022.pdfapplication/pdf4416292${dspace.ui.url}/bitstream/11600/6605/1/S1516-14392011000300022.pdf8ebff95e76c9146f441146c72b00b617MD51open accessTEXTS1516-14392011000300022.pdf.txtS1516-14392011000300022.pdf.txtExtracted texttext/plain26734${dspace.ui.url}/bitstream/11600/6605/9/S1516-14392011000300022.pdf.txt6192d49cab7157f9f5c756698d7d110fMD59open accessTHUMBNAILS1516-14392011000300022.pdf.jpgS1516-14392011000300022.pdf.jpgIM Thumbnailimage/jpeg6549${dspace.ui.url}/bitstream/11600/6605/11/S1516-14392011000300022.pdf.jpg928ba4ac3f7a583a97830039dae6869bMD511open access11600/66052023-06-05 19:10:10.799open accessoai:repositorio.unifesp.br:11600/6605Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:10:10Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
Ultrasonic inspection of AA6013 laser welded joints |
title |
Ultrasonic inspection of AA6013 laser welded joints |
spellingShingle |
Ultrasonic inspection of AA6013 laser welded joints Passini, Adriano ultrasonic inspection pulse laser welding aluminum alloy |
title_short |
Ultrasonic inspection of AA6013 laser welded joints |
title_full |
Ultrasonic inspection of AA6013 laser welded joints |
title_fullStr |
Ultrasonic inspection of AA6013 laser welded joints |
title_full_unstemmed |
Ultrasonic inspection of AA6013 laser welded joints |
title_sort |
Ultrasonic inspection of AA6013 laser welded joints |
author |
Passini, Adriano |
author_facet |
Passini, Adriano Oliveira, Aline Capella de [UNIFESP] Riva, Rudimar Travessa, Dilermando Nagle [UNIFESP] Cardoso, Kátia Regina [UNIFESP] |
author_role |
author |
author2 |
Oliveira, Aline Capella de [UNIFESP] Riva, Rudimar Travessa, Dilermando Nagle [UNIFESP] Cardoso, Kátia Regina [UNIFESP] |
author2_role |
author author author author |
dc.contributor.institution.none.fl_str_mv |
Empresa Brasileira de Aeronáutica S.A. Instituto de Estudos Avançados Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Passini, Adriano Oliveira, Aline Capella de [UNIFESP] Riva, Rudimar Travessa, Dilermando Nagle [UNIFESP] Cardoso, Kátia Regina [UNIFESP] |
dc.subject.eng.fl_str_mv |
ultrasonic inspection pulse laser welding aluminum alloy |
topic |
ultrasonic inspection pulse laser welding aluminum alloy |
description |
Interest in laser beam welding for aerospace applications is continuously growing, mainly for aluminum alloys. The joints quality is usually assessed by non-destructive inspection (NDI). In this work, bead on plate laser welds on 1.6 mm thick AA6013 alloy sheets, using a 2 kW Yb-fiber laser were obtained and inspected by pulse/echo ultrasonic phased-array technique. Good and poor quality welds were inspected in order to verify the limits of inspection, comparing also to X-ray radiography and metallographic inspections. The results showed that ultrasonic phased array technique was able to identify the presence of grouped porosity, through the attenuation of the amplitude of the echo signal. This attenuation is attributed to the scattering of the waves caused by micro pores, with individual size below the resolution limit of the equipment, but when grouped, can cause a perceptive effect on the reflection spectra. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-09-01 |
dc.date.accessioned.fl_str_mv |
2015-06-14T13:43:15Z |
dc.date.available.fl_str_mv |
2015-06-14T13:43:15Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Materials Research. ABM, ABC, ABPol, v. 14, n. 3, p. 417-422, 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.unifesp.br/handle/11600/6605 http://dx.doi.org/10.1590/S1516-14392011005000057 |
dc.identifier.issn.none.fl_str_mv |
1516-1439 |
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S1516-14392011000300022.pdf |
dc.identifier.scielo.none.fl_str_mv |
S1516-14392011000300022 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S1516-14392011005000057 |
dc.identifier.wos.none.fl_str_mv |
WOS:000296277000022 |
identifier_str_mv |
Materials Research. ABM, ABC, ABPol, v. 14, n. 3, p. 417-422, 2011. 1516-1439 S1516-14392011000300022.pdf S1516-14392011000300022 10.1590/S1516-14392011005000057 WOS:000296277000022 |
url |
http://repositorio.unifesp.br/handle/11600/6605 http://dx.doi.org/10.1590/S1516-14392011005000057 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Materials Research |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
417-422 |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
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Repositório Institucional da UNIFESP |
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