Electron Beam Welding

20190506-04
Welding in space and in vacuum chambers
Georgi M. Mladenov, Elena G. Koleva, Dmitriy N. Trushnikov

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This paper presents literature analysis of available sources on the Internet and the experience of the authors, describing the characteristic technologies of vacuum welding on earth and in space in the presence of weightlessness ...  read more

20180910-03
Comparison of electron beam and laser welding for safety critical space applications
Tim Mitchell, Chris Allen, Andrew Norman

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Recent work completed for ESA and Ariane Group performed a comprehensive comparative assessment of laser and electron beam processes, targeting stainless steel flow control valve materials and typical penetrations to determine ...  read more

20180910-05
Model-based approach for the shape estimation of electron beam welding joints
Tsvetomira S. Tsonevska, Elena G. Koleva, Georgi M. Mladenov

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This article discusses a modeling approach for the obtained by electron beam welding molten pool shapes, which is based on experimental data, type mathematical function and regression analysis. The process of electron beam ...  read more

20140506-16
Prediction of the Partial Penetration Depth on 15-5PH Materials during Electron Beam Welding
Kamal Frikach, Jamie White, Jeff Houtz

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We report in this paper a systematic study for partial penetration of the electron beam welding and its correlation with the beam power as a combination of beam voltage and current, welding speed and working distance. The ...  read more

20140506-15
Electron Beam Welding of Superconducting Cavities Made of Ultra-Pure Niobium
Igar L. Pobal, Siarhei V. Yurevich

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Manufacture of superconducting radiofrequency (SRF) cavities for modern accelerators requires ultra-purity niobium. Joining components of such cavities is only possible with the use of electron-beam welding. Investigations ...  read more

20140506-14
Influence of Electron Beam’s Oscillations on Weld’s Structure Formation of Dissimilar Materials on an Example Steel with Bronze
Tatiana V. Olshanskaya, Gleb L. Permyakov, Vladimir Y. Belenkiy, Dmitriy N. Trushnikov

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The results of metallographic studies of dissimilar materials welds joint’s structure are presented. Welds were obtained from steel (12Х21Н5Т in Russian) and bronze (БрХ-06 in Russian), using EBW with the oscillation ...  read more

20140506-13
Model-Based Quality Optimization of EBW of steel
Elena Koleva, Dmitriy Trushnikov, Vladimir Belenkiy, Georgi Mladenov, Stefan Angelov, Dimitar Todorov

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Experimental results (four series of experiments) for EBW of two types of steel – high strength steel of 38Cr2Ni2Mo type and stainless steel are obtained and used for the estimation of models, describing the dependencies ...  read more

20140506-12
EBW of Stainless Steels and ODS Ferritic Steel
Petr Havlík, Pavel Šohaj, Jan Kouřil, Rudolf Foret, Ivo Dlouhý

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Dissimilar welds are the integral part of design in chemical, nuclear and energy industries. One of the most common combinations is the joints between ferritic, austenitic and martensitic steels. These joints provide many ...  read more

20140506-11
Electron Beam Welding of the Elements Module Blanket ITER
Electron Beam Welding of the Elements Module Blanket ITER

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The article is devoted to research of electron beam welding construction elements for International Thermonuclear Experimental Reactor in National Resesrch University “Mocow Power Engineering Institute”. It reviews design ...  read more

20140506-10
Mechanism of Onset of Keyhole Depth Fluctuations at Beam Welding Processes
Andrey A. Vasilyev, Vladimir A. Erofeev, Vladislav A. Sudnik

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The mechanisms of the beginning of depth oscillations of the vapour-gas channel are examined in beam welding. It is assumed that the reasons of the root peaks are the evaporation and condensation of metal vapour in the channel. ...  read more