Results 21 to 30 of about 21,657 (263)
Horizontal welding quality control of the CO2 gas shielded welding
MATEC Web of Conferences, 2018 In the process of horizontal butt welding of CO2 gas shielded welding, the molten metal will squat under the effect of its own weight. Therefore, the upper part of the weld seam is very easy to produce undercuts, and the lower part is prone to defects ...
Wang Zhi-ling
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Jurnal Pendidikan Teknologi dan Kejuruan, 2015 The purpose of this study is to examine various defects in the welding joint works from the participants of Vocational High School students’ skills competition in Yogyakarta area for welding field.
Putut Hargiyarto +2 more
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Welding Process Optimization of WELDOX960 High Strength Steel
MATEC Web of Conferences, 2018 This paper studies WELDOX960 high strength steel, analysis of the welding ability of WELDOX960 high strength steel. Analyze the weld ability of WELDOX960 high-strength steel materials, and study the influence of process parameters such as welding current,
Hu Min
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Laser Welding Process – A Review of Keyhole Welding Modelling
Physics Procedia, 2015 AbstractLaser welding is used in several industrial applications. It can be distinguished between conduction mode and keyhole mode welding, between pulsed wave and cw laser welding and between CO2-lasers with a wavelength of 10μm and various laser types of about 1μm wavelength.
Svenungsson, Josefine +2 more
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Additive Manufacturing LettersFusion-based additive manufacturing (AM) techniques face some challenges for aluminium due to the necessity of material melting resulting in insufficient bonding.
Zina Kallien +6 more
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The On-Line Identification and Location of Welding Interference Based on CEEMD
MetalsThe welding process itself is a non-linear, multivariable, coupled physical metallurgical process that is easily perturbed. Improper welding parameter selection and welding process conditions will interfere with the welding process and affect the final ...
Peng Yu +6 more
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Causes of the cracks in the pipeline made of the 15HM steel
Archives of Metallurgy and Materials, 2017 Issues referring to cracks in the pipelines made of the 15HM steel are described. Metallographic specimen of welded joints are provided. The results of impact strength tests, hardness tests and static tensile tests are given.
Słania J., Krawczyk R., Gątarek M.
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Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
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Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
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Chengshi guidao jiaotong yanjiu［Objective］ Due to the influence of thermal conductivity and linear expansion characteristics of aluminum alloy materials, welding deformation is prone to occur during the welding process of aluminum alloy carbodies in high-speed railway EMU (electric ...
LIU Song +5 more
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