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high energy density electron welding

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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
... welding electrons focused beam diameter high energy density electron welding keyhole-mode welding laser beam welding photons power density boundary HIGH ENERGY DENSITY BEAM WELDING refers to electron or laser processes where a beam of electrons or photons, respectively, can be focused to power...
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
... ELECTRON BEAM WELDING (EBW) is a high energy density beam welding process that is accomplished by bombarding the joint to be welded with an intense beam of electrons that have been accelerated up to velocities 0.3 to 0.7 times the speed of light at 30 to 200 kV, respectively. Some of the details were given...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005603
EISBN: 978-1-62708-174-0
... simplified and detailed heat-source models that have been used in the modeling of arc welding, high-energy-density welding, and resistance welding. arc welding direct heat source electric arc welding electron beam welding fusion welding gas metal arc welding gas tungsten arc welding heat-source...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005552
EISBN: 978-1-62708-174-0
... of the (a) melt-in or conduction versus (b) keyhole modes in high-energy-density welding processes, including plasma arc welding, electron beam welding, and laser beam welding. Source: Ref 2 As the beam energy source moves along (at the welding speed), the molten material surrounding the vapor cavity...
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...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005641
EISBN: 978-1-62708-174-0
.../in. 2 ). (See the article “Introduction to High Energy Density Electron and Laser Beam Welding” in this Volume for an introduction to the nature of laser beam radiation.) Lasers have been promoted as potentially useful welding tools for a variety of applications. By 1965, a variety of laser...
Image
Published: 31 October 2011
Fig. 15 Schematic illustration of the (a) melt-in or conduction versus (b) keyhole modes in high-energy-density welding processes, including plasma arc welding, electron beam welding, and laser beam welding. Source: Ref 2 More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001481
EISBN: 978-1-62708-173-3
... modeling of the welding heat source is generally complex, because of the nature of energy transfer to the workpiece, whether the source of that energy is an arc, a high-energy-density beam of electrons or laser light, or joule heating. For numerical modeling purposes, heat input to the weldment is usually...
Image
Published: 01 December 2004
Fig. 7 2.25Cr-1Mo steel plate, single-pass electron beam weld. Heat input: 0.5 MJ/m. Macrostructure shows high depth-to-width ratio of the fusion zone, which is typical of high-energy density welding processes. Etchant: 85 mL H 2 O + 15 mL HNO 3 + 5 mL methanol. Magnification: 2.8× More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005639
EISBN: 978-1-62708-174-0
... beam microwelding fluid flow heat flow high energy density beam laser beam laser beam microwelding laser droplet welding laser spike welding melting microjoining microjoints microwelds postweld metrology SHADOW welding solidification MICROJOINING with high energy density beams...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001419
EISBN: 978-1-62708-173-3
... conditions such as high energy density and minimum energy input, that increase the temperature gradients in both the fusion zone and the heat-affected zone (HAZ) and increase the overall weld cooling rate, will be required to minimize the widths of the partially melted region and the HAZ. Such welding...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001370
EISBN: 978-1-62708-173-3
... Abstract Laser-beam welding (LBW) uses a moving high-density coherent optical energy source, called laser, as the source of heat. This article discusses the advantages and limitations of LBW and tabulates energy consumption and efficiency of LBW relative to other selected welding processes...
Book Chapter