Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896708224> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2896708224 abstract "The stability of the welding process is directly related to the evolution of the highly-pressurized zinc vapor developed at the interface of two metal sheets. A large amount of spatters and blowholes tends to be produced in the instable laser welding process of galvanized steels in a gap-free lap joint configuration. In addition, the corrosion issue arising from the large at the interface of two metal sheets is another concern. Due to the intense laser-induced plume and arc light produced during the laser welding process and hybrid laser-arc welding process of galvanized steels, it is difficult to directly observe the dynamic behavior of the molten pool by human eyes.In this paper, the weld quality of lap joints obtained by laser welding, hybrid laser-GTAW welding in the common molten pool, and hybrid laser-GTAW welding in a separate molten pool, is compared. A high speed camera with the frame rate of 4000 f/ps is applied to monitor the welding process in real-time. With the help of the illumination light, the images of the molten pool are clearly acquired by the high speed camera and the patterns of fluid flow in the molten pool are identified. Mechanism of the formation of spatters is studied based on the captured images of the molten pool. It was found that when the metal fluid flow is stable, the keyhole is kept open, which provides a channel for the highly-pressurized zinc vapor to be vented out from the interface of two metal sheets. Consequently, the welding process is stable and the sound weld is achieved. However, when the fluid flow in the molten pool becomes turbulent due to the instable highly-pressurized zinc vapor, the metal fluid flow in the rear part of the molten pool is immediately transformed into the swirling status and spatially progresses forward to close the keyhole. A large amount of metal liquid is brought out of the molten pool and deposited in the welds. In addition, the relationship between the saturated pressure of zinc vapor and temperature in fusion zone is described by Clausius-Clapeyron equation. Effect of the gap between two plates on the weld quality is also investigated.The stability of the welding process is directly related to the evolution of the highly-pressurized zinc vapor developed at the interface of two metal sheets. A large amount of spatters and blowholes tends to be produced in the instable laser welding process of galvanized steels in a gap-free lap joint configuration. In addition, the corrosion issue arising from the large at the interface of two metal sheets is another concern. Due to the intense laser-induced plume and arc light produced during the laser welding process and hybrid laser-arc welding process of galvanized steels, it is difficult to directly observe the dynamic behavior of the molten pool by human eyes.In this paper, the weld quality of lap joints obtained by laser welding, hybrid laser-GTAW welding in the common molten pool, and hybrid laser-GTAW welding in a separate molten pool, is compared. A high speed camera with the frame rate of 4000 f/ps is applied to monitor the welding process in real-time. With the help of the illumination light..." @default.
- W2896708224 created "2018-10-26" @default.
- W2896708224 creator A5006332835 @default.
- W2896708224 creator A5009868389 @default.
- W2896708224 creator A5031664701 @default.
- W2896708224 date "2009-01-01" @default.
- W2896708224 modified "2023-09-26" @default.
- W2896708224 title "Monitoring of hybrid laser-arc welding of galvanized steels in a gap-free lap joint configuration" @default.
- W2896708224 doi "https://doi.org/10.2351/1.5061634" @default.
- W2896708224 hasPublicationYear "2009" @default.
- W2896708224 type Work @default.
- W2896708224 sameAs 2896708224 @default.
- W2896708224 citedByCount "3" @default.
- W2896708224 countsByYear W28967082242012 @default.
- W2896708224 countsByYear W28967082242014 @default.
- W2896708224 crossrefType "proceedings-article" @default.
- W2896708224 hasAuthorship W2896708224A5006332835 @default.
- W2896708224 hasAuthorship W2896708224A5009868389 @default.
- W2896708224 hasAuthorship W2896708224A5031664701 @default.
- W2896708224 hasConcept C119599485 @default.
- W2896708224 hasConcept C127413603 @default.
- W2896708224 hasConcept C159985019 @default.
- W2896708224 hasConcept C185324459 @default.
- W2896708224 hasConcept C191897082 @default.
- W2896708224 hasConcept C192562407 @default.
- W2896708224 hasConcept C19474535 @default.
- W2896708224 hasConcept C20480867 @default.
- W2896708224 hasConcept C2776143536 @default.
- W2896708224 hasConcept C2779227376 @default.
- W2896708224 hasConcept C3450827 @default.
- W2896708224 hasConcept C44273521 @default.
- W2896708224 hasConcept C4606981 @default.
- W2896708224 hasConcept C50916996 @default.
- W2896708224 hasConcept C8846229 @default.
- W2896708224 hasConcept C89344249 @default.
- W2896708224 hasConceptScore W2896708224C119599485 @default.
- W2896708224 hasConceptScore W2896708224C127413603 @default.
- W2896708224 hasConceptScore W2896708224C159985019 @default.
- W2896708224 hasConceptScore W2896708224C185324459 @default.
- W2896708224 hasConceptScore W2896708224C191897082 @default.
- W2896708224 hasConceptScore W2896708224C192562407 @default.
- W2896708224 hasConceptScore W2896708224C19474535 @default.
- W2896708224 hasConceptScore W2896708224C20480867 @default.
- W2896708224 hasConceptScore W2896708224C2776143536 @default.
- W2896708224 hasConceptScore W2896708224C2779227376 @default.
- W2896708224 hasConceptScore W2896708224C3450827 @default.
- W2896708224 hasConceptScore W2896708224C44273521 @default.
- W2896708224 hasConceptScore W2896708224C4606981 @default.
- W2896708224 hasConceptScore W2896708224C50916996 @default.
- W2896708224 hasConceptScore W2896708224C8846229 @default.
- W2896708224 hasConceptScore W2896708224C89344249 @default.
- W2896708224 hasLocation W28967082241 @default.
- W2896708224 hasOpenAccess W2896708224 @default.
- W2896708224 hasPrimaryLocation W28967082241 @default.
- W2896708224 hasRelatedWork W1584061675 @default.
- W2896708224 hasRelatedWork W2004898032 @default.
- W2896708224 hasRelatedWork W2009257295 @default.
- W2896708224 hasRelatedWork W2029544280 @default.
- W2896708224 hasRelatedWork W2051470670 @default.
- W2896708224 hasRelatedWork W2079302200 @default.
- W2896708224 hasRelatedWork W2390079838 @default.
- W2896708224 hasRelatedWork W2398360437 @default.
- W2896708224 hasRelatedWork W2615994639 @default.
- W2896708224 hasRelatedWork W273300018 @default.
- W2896708224 hasRelatedWork W2978107859 @default.
- W2896708224 hasRelatedWork W2979748938 @default.
- W2896708224 hasRelatedWork W2986269887 @default.
- W2896708224 hasRelatedWork W3010701629 @default.
- W2896708224 hasRelatedWork W3108912265 @default.
- W2896708224 hasRelatedWork W3176743589 @default.
- W2896708224 hasRelatedWork W2876733783 @default.
- W2896708224 hasRelatedWork W2935466638 @default.
- W2896708224 hasRelatedWork W3074444633 @default.
- W2896708224 hasRelatedWork W3113881093 @default.
- W2896708224 isParatext "false" @default.
- W2896708224 isRetracted "false" @default.
- W2896708224 magId "2896708224" @default.
- W2896708224 workType "article" @default.