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electron beam welding
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Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005614
EISBN: 978-1-62708-174-0
... Abstract Electron beam welding (EBW) can produce deep, narrow, and almost parallel-sided welds with low total heat input and relatively narrow heat-affected zones in a wide variety of common and exotic metals. This article focuses on essential parameters of EBW, namely, weld and surface...
Abstract
Electron beam welding (EBW) can produce deep, narrow, and almost parallel-sided welds with low total heat input and relatively narrow heat-affected zones in a wide variety of common and exotic metals. This article focuses on essential parameters of EBW, namely, weld and surface geometry, part configuration, melt-zone configuration, weld atmosphere (vacuum and nonvacuum), and joint design. It describes various aspects considered in EBW of thin and thick metal sections and poorly accessible joints. An overview of scanning and joint tracking techniques for inspection of electron beam-welded joints is also included. The article concludes with discussions on EBW defects, the use of filler metal for weld repair, and the control plans, codes, and specifications of the EBW process.
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005615
EISBN: 978-1-62708-174-0
... Abstract This article introduces the operating principles and modes of operation for high-vacuum (EBW-HV), Medium-vacuum (EBW-MV), and nonvacuum (EBW-NV) electron beam welding. Equipment, process sequence, part preparation, process control, and weld geometry are described for electron beam...
Abstract
This article introduces the operating principles and modes of operation for high-vacuum (EBW-HV), Medium-vacuum (EBW-MV), and nonvacuum (EBW-NV) electron beam welding. Equipment, process sequence, part preparation, process control, and weld geometry are described for electron beam welding. Advantages are described in terms of welding near heat sensitive components or materials and producing deep penetration or shallow welds with the same equipment.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001444
EISBN: 978-1-62708-173-3
... Abstract Electron-beam welding (EBW) can produce deep, narrow, and almost parallel-sided welds with low total heat input and relatively narrow heat-affected zones in a wide variety of common and exotic metals. This article discusses the joint configurations and shrinkage stresses encountered...
Abstract
Electron-beam welding (EBW) can produce deep, narrow, and almost parallel-sided welds with low total heat input and relatively narrow heat-affected zones in a wide variety of common and exotic metals. This article discusses the joint configurations and shrinkage stresses encountered in various joint designs for electron-beam welding, as well as special joints and welds including multiple-pass welds, tangent-tube welds, three-piece welds, and multiple-tier welds. It provides a comparison of medium vacuum EBW with high-vacuum EBW. Scanning is a method of checking the run-out between the beam spot and the joint to be welded. The article describes various scanning techniques for welding dissimilar metals and provides information on the application of electron-beam wire-feed process for repairs. It concludes with a discussion on EBW of heat-resistant alloys, refractory metals, aluminum alloys, titanium alloys, copper and copper alloys, magnesium alloys, and beryllium.
Book Chapter
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001369
EISBN: 978-1-62708-173-3
... Abstract Electron-beam welding (EBW) is a high-energy density fusion process that is accomplished by bombarding the joint to be welded with an intense (strongly focused) beam of electrons that have been accelerated up to velocities 0.3 to 0.7 times the speed of light at 25 to 200 kV...
Abstract
Electron-beam welding (EBW) is a high-energy density fusion process that is accomplished by bombarding the joint to be welded with an intense (strongly focused) beam of electrons that have been accelerated up to velocities 0.3 to 0.7 times the speed of light at 25 to 200 kV, respectively. This article discusses the principles of operation, as well as the advantages and limitations of EBW. It reviews the basic variables employed for controlling the results of an electron-beam weld. These include accelerating voltage, beam current, welding speed, focusing current, and standoff distance. The article reviews the operation sequence and safety aspects of EBW.
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005627
EISBN: 978-1-62708-174-0
... Abstract This article provides a history of electron and laser beam welding, discusses the properties of electrons and photons used for welding, and contrasts electron and laser beam welding. It presents a comparison of the electron and laser beam welding processes. The article also illustrates...
Abstract
This article provides a history of electron and laser beam welding, discusses the properties of electrons and photons used for welding, and contrasts electron and laser beam welding. It presents a comparison of the electron and laser beam welding processes. The article also illustrates constant power density boundaries, showing the relationship between the focused beam diameter and the absorbed beam power for approximate regions of keyhole-mode welding, conduction-mode welding, cutting, and drilling.
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Published: 31 October 2011
Fig. 3 Cross sections of electron beam welding using high-voltage welding equipment. (a) Shallow-penetration weld on 304L stainless steel with weld parameters of 100 kV, 10 mA, and a travel speed of 17 mm/s (0.7 in./s). Courtesy of T.A. Palmer, Applied Research Laboratory of Pennsylvania tate
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Published: 31 October 2011
Fig. 16 Schematic illustrations of the (a) electron beam welding and (b) laser beam welding processes. The former is virtually always operated in a hard vacuum, while the latter can operate in air, in an inert gas atmosphere, or in vacuum. Source: Ref 2
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Published: 31 October 2011
Fig. 2 Schematic drawing showing primary components of an electron beam welding head with a triode-style gun assembly
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Published: 31 October 2011
Fig. 5 “Palletized,” small-chamber electron beam welding system with all components (including high-voltage tank, vacuum system, and chamber) on a moveable platform. Courtesy of PTR-PTR Präzisionstechnik GmbH, Maintal
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Published: 31 October 2011
Fig. 6 Large-chamber, low-voltage electron beam welding system with movable gun. Courtesy of Sciaky, Inc.
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Published: 31 October 2011
Fig. 7 Large-chamber, high-voltage electron beam welding system with fixed gun. Courtesy of PTR-Precision Technologies, Inc., Enfield, CT
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Published: 31 October 2011
Fig. 8 Large-chamber, high-voltage electron beam welding system. Courtesy of pro-beam AG & Co. KGaA
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Published: 31 October 2011
Fig. 9 Very large-chamber, low-voltage electron beam welding machine (600 m 3 , 80 kV/40 kW machine). Courtesy of pro-beam AG & Co. KGaA
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Published: 31 October 2011
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Published: 31 October 2011
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Published: 31 October 2011
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Published: 31 October 2011
Fig. 13 Typical welds generated by electron beam welding of edge joints having components of equal and unequal section thicknesses
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Published: 31 October 2011
Fig. 20 Moveable electron beam welding gun assembly with wire-feed system. Courtesy of Sciaky, Inc.
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Published: 31 October 2011
Fig. 23 Sequence of operations required for electron beam welding repair of an air seal. See text for details.
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Published: 15 June 2020
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