Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys
Lately, high production rate welding processes for Al alloys, which are used as LNG FPSO cargo containment system material, have been developed to overcome the limit of installation and high rework rates. In particular, plasma-metal inert gas (MIG) hybrid (PMH) welding can be used to obtain a higher...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-07-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678216300474 |
| _version_ | 1828807159795679232 |
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| author | Hee-Keun Lee Kwang-San Chun Sang-Hyeon Park Chung-Yun Kang |
| author_facet | Hee-Keun Lee Kwang-San Chun Sang-Hyeon Park Chung-Yun Kang |
| author_sort | Hee-Keun Lee |
| collection | DOAJ |
| description | Lately, high production rate welding processes for Al alloys, which are used as LNG FPSO cargo containment system material, have been developed to overcome the limit of installation and high rework rates. In particular, plasma-metal inert gas (MIG) hybrid (PMH) welding can be used to obtain a higher deposition rate and lower porosity, while facilitating a cleaning effect by preheating and post heating the wire and the base metal. However, an asymmetric undercut and a black-colored deposit are created on the surface of PMH weld in Al alloys. For controlling the surface defect formation, the wire feeding speed and nozzle diameter in the PMH weld was investigated through arc phenomena with high-speed imaging and metallurgical analysis. |
| first_indexed | 2024-12-12T08:21:27Z |
| format | Article |
| id | doaj.art-de6af3a241634e3ab83ca7d42db8f7c2 |
| institution | Directory Open Access Journal |
| issn | 2092-6782 |
| language | English |
| last_indexed | 2024-12-12T08:21:27Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj.art-de6af3a241634e3ab83ca7d42db8f7c22022-12-22T00:31:24ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822015-07-017477078310.1515/ijnaoe-2015-0054ijnaoe-2015-0054Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloysHee-Keun Lee0Kwang-San Chun1Sang-Hyeon Park2Chung-Yun Kang3Welding Engineering R&D Group, Daewoo Shipbuilding & Marine Engineering Co., Ltd, Geoje, KoreaWelding Engineering R&D Group, Daewoo Shipbuilding & Marine Engineering Co., Ltd, Geoje, KoreaHybrid Materials Solution National Core Research Center, Pusan National University, Busan, KoreaHybrid Materials Solution National Core Research Center, Pusan National University, Busan, KoreaLately, high production rate welding processes for Al alloys, which are used as LNG FPSO cargo containment system material, have been developed to overcome the limit of installation and high rework rates. In particular, plasma-metal inert gas (MIG) hybrid (PMH) welding can be used to obtain a higher deposition rate and lower porosity, while facilitating a cleaning effect by preheating and post heating the wire and the base metal. However, an asymmetric undercut and a black-colored deposit are created on the surface of PMH weld in Al alloys. For controlling the surface defect formation, the wire feeding speed and nozzle diameter in the PMH weld was investigated through arc phenomena with high-speed imaging and metallurgical analysis.http://www.sciencedirect.com/science/article/pii/S2092678216300474Plasma-MIG hybrid weldingUndercutSmutAluminum weldingWire feeding speedNozzle diameter |
| spellingShingle | Hee-Keun Lee Kwang-San Chun Sang-Hyeon Park Chung-Yun Kang Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys International Journal of Naval Architecture and Ocean Engineering Plasma-MIG hybrid welding Undercut Smut Aluminum welding Wire feeding speed Nozzle diameter |
| title | Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys |
| title_full | Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys |
| title_fullStr | Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys |
| title_full_unstemmed | Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys |
| title_short | Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys |
| title_sort | control of surface defects on plasma mig hybrid welds in cryogenic aluminum alloys |
| topic | Plasma-MIG hybrid welding Undercut Smut Aluminum welding Wire feeding speed Nozzle diameter |
| url | http://www.sciencedirect.com/science/article/pii/S2092678216300474 |
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