Journal ArticleDOI
Characteristics of multi-pass narrow-gap laser welding of D406A ultra-high strength steel
TLDR
A universal and applicable method to predict bonding quality in narrow-gap laser beam filler wire welding of D406A ultra-high strength steel was presented in this paper, where defect-free joint could be achieved under the predicted optimal welding condition.About:
This article is published in Journal of Materials Processing Technology.The article was published on 2019-08-01. It has received 23 citations till now. The article focuses on the topics: Welding & Arc welding.read more
Citations
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Underwater wet welding of S1300 ultra-high strength steel
TL;DR: In this article , the possibility of underwater wet welding by covered electrode S1300 ultra-high strength steel of different thickness (4 mm and 10 mm) has been investigated, and the visual, metallographic macro- and microscopic tests of samples with two nonparallel beads were performed.
Journal ArticleDOI
Underwater wet welding of S1300 ultra-high strength steel
TL;DR: In this paper, the possibility of underwater wet welding by covered electrode S1300 ultra-high strength steel of different thickness (4 mm and 10 mm) has been investigated, and it was proved that TBW leads to positive microstructural changes and reduces the number of cracks in different regions of welded joints.
Journal ArticleDOI
Laser welding of ultra-high strength steel with different oscillating modes
TL;DR: In this paper, the effect of four oscillating modes on morphology, microstructure and mechanical properties of the 3.5mm-thick UHSS welded joints were discussed, including transverse, longitudinal, circular and without oscillation.
Journal ArticleDOI
Microstructures and performances of the butt joint of TA1/Q235B bimetallic sheet with addition of a Mo interlayer by using narrow gap laser welding with filler wire
TL;DR: In this article, the Butt Joint of a TA1/Q235B layered bimetallic sheet with thickness of 6 mm was prepared by utilizing narrow gap multi-pass laser welding with low heat input, and the microstructures of the softened zone exhibited a low dislocation density observed by a transmission electron microscope (TEM).
Journal ArticleDOI
Multi-objective optimization of laser welding process parameters: The trade-offs between energy consumption and welding quality
TL;DR: In this paper , the relationship between welding quality and energy consumption was investigated by optimizing process parameters during the 2 mm thickness 6061 aluminum alloy laser welding, and the Non-dominated Sorting Genetic Algorithm-III (NSGA-III) was utilized to minimize energy consumption while maintaining good welding quality.
References
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Journal ArticleDOI
A model of deep penetration laser welding based on calculation of the keyhole profile
TL;DR: In this article, a model describing the process of deep-penetration laser welding has been developed by calculating the keyhole profile using a point-by-point determination of the energy balance at the key hole wall.
Model of deep penetration laser welding based on calculation of the keyhole profile
TL;DR: In this article, a model describing the process of deep-penetration laser welding has been developed by calculating the keyhole profile using a point-by-point determination of the energy balance at the key hole wall.
Journal ArticleDOI
A comparison of residual stresses in multi pass narrow gap laser welds and gas-tungsten arc welds in AISI 316L stainless steel
TL;DR: In this paper, a preliminary investigation of the through-thickness 2D residual stresses distributions, distortions, and plastic strain characteristics, for the narrow gap laser welding (NGLW) process using material thicknesses up to 20mm.
Journal ArticleDOI
Rapid prototyping with high power fiber lasers
Rosa Maria Mendes Miranda,Rosa Maria Mendes Miranda,Gil Lopes,Luísa Quintino,João Paulo C. Rodrigues,Stewart W. Williams +5 more
TL;DR: In this paper, the relative position between the wire feeding system and the substrate and the laser beam to wire width ratio were investigated to control surface finishing and the smoothness of the part.
Journal ArticleDOI
Comparison of microstructure and mechanical properties of ultra-narrow gap laser and gas-metal-arc welded S960 high strength steel
TL;DR: In this article, the microstructural characteristics and mechanical properties, including micro-hardness, tensile properties, three-point bending properties and Charpy impact toughness at different test temperatures of 8mm thick S960 high strength steel plates were investigated following their joining by multi-pass ultra-narrow gap laser welding (NGLW) and gas metal arc welding (GMAW) techniques.