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Book Chapter

Electron Beam Melting

Available to Purchase

By David W. Tripp
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005204
EISBN: 978-1-62708-187-0
... Abstract Electron beam melting includes melting, refining, and conversion processes for metals and alloys. This article describes the electron beam melting process, as well as the principles, equipment, and process considerations of drip melting and cold hearth melting process. electron...
Abstract
Electron beam melting includes melting, refining, and conversion processes for metals and alloys. This article describes the electron beam melting process, as well as the principles, equipment, and process considerations of drip melting and cold hearth melting process.
View PDF for content titled, <span class="search-highlight">Electron</span> <span class="search-highlight">Beam</span> <span class="search-highlight">Melting</span>
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Examples of electron beam melting and casting processes. (a) Button melting...

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in Electron Beam Melting > Casting
Published: 01 December 2008
Fig. 2 Examples of electron beam melting and casting processes. (a) Button melting with controlled solidification for quantitative determination of low-density inclusions. (b) Consolidation of raw material, chips, and solid scrap to consumable electrodes for vacuum arc or electron beam More
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Schematic of the electron beam melting process

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in Electron Beam Melting > Casting
Published: 01 December 2008
Fig. 1 Schematic of the electron beam melting process More
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Electron beam melting additive-manufactured copper cathode. (a) Design figu...

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in Additive Manufacturing of Copper and Copper Alloys > Additive Manufacturing Processes
Published: 15 June 2020
Fig. 35 Electron beam melting additive-manufactured copper cathode. (a) Design figure. (b) As-fabricated. (c) Final polished. (d) Assembly figures. (e) Installed in the Pegasus photoinjector. Source: Ref 40 More
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Particle shape of tantalum powder produced by electron beam melting, hydrid...

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in Production of Refractory Metal Powders > Powder Metallurgy
Published: 30 September 2015
Fig. 7 Particle shape of tantalum powder produced by electron beam melting, hydriding, crushing, and degassing. Courtesy of Prabhat Kumar More
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Configuration of an electron beam melting system. Adapted from Ref 45

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in Powder-Bed Fusion > Additive Manufacturing in Biomedical Applications
Published: 12 September 2022
Fig. 2 Configuration of an electron beam melting system. Adapted from Ref 45 More
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Particle shape of niobium powder made by electron beam melting, hydriding, crushing, and degassing. 250×

Particle shape of niobium powder made by electron beam melting, hydriding, ...

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in Refractory Metals and Alloys > Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 6 Particle shape of niobium powder made by electron beam melting, hydriding, crushing, and degassing. 250× More
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Rotating-beam fatigue strength of wrought electron-beam-melted tantalum. Sample impurities: &lt;44 ppm C + N2

Rotating-beam fatigue strength of wrought electron-beam-melted tantalum. Sa...

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in Properties of Pure Metals > Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 110 Rotating-beam fatigue strength of wrought electron-beam-melted tantalum. Sample impurities: &lt;44 ppm C + N 2 More
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Scanning electron micrographs of electron-beam-melted alloy 718 processed a...

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in Additive Manufacturing of Nickel-Base Superalloys > Additive Manufacturing Processes
Published: 15 June 2020
Fig. 4 Scanning electron micrographs of electron-beam-melted alloy 718 processed at (a) lower temperature (915 °C, or 1680 °F) and (b) higher temperature (990 °C, or 1815 °F). (c) Time-temperature-transformation diagram of alloy 718 showing that between 900 and 1000 °C (1650 and 1830 °F More
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Microstructures of silver-copper alloys electron beam melted and resolidifi...

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in Fundamentals of Solidification > Metallography and Microstructures
Published: 01 December 2004
Fig. 32 Microstructures of silver-copper alloys electron beam melted and resolidified at different velocities. (a) Ag-15Cu alloy resolidified at 0.025 m/s (1 in./s). Globular microsegregation pattern. Magnification: 32,000×. (b) Ag-15Cu alloy resolidified at 0.3 m/s (12 in./s). Cellular More
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Near-infrared layer image of electron-beam-melted build of airfoils being f...

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in Process-Structure Relationships in Fusion Metals Additive Manufacturing > Additive Manufacturing Design and Applications
Published: 30 June 2023
Fig. 4 Near-infrared layer image of electron-beam-melted build of airfoils being fabricated from MAR-M247, indicating a linkage between cracking and geometry. Courtesy of Oak Ridge National Laboratory More
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Capacitance of sodium-reduced and electron beam melted, degassed-hydride ta...

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in Properties and Selection of Powder Metallurgy Refractory Metals[1] > Powder Metallurgy
Published: 30 September 2015
Fig. 4 Capacitance of sodium-reduced and electron beam melted, degassed-hydride tantalum powder. Thirty min anode sintering temperature at anode green densities commonly used for each powder More
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Low-temperature tensile properties of electron-beam-melted tantalum bar. Sample impurities: &lt;0.003% C, &lt;0.003% O2, 0.0008% N2, &lt;0.08% other. Bar was annealed for 3 h at 1200 °C: hardness, 83 HV; grain size, ASTM No. 5. Crosshead speed: unnotched specimens, 0.5 mm/min; notched specimens, 0.13 mm/min

Low-temperature tensile properties of electron-beam-melted tantalum bar. Sa...

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in Properties of Pure Metals > Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 106 Low-temperature tensile properties of electron-beam-melted tantalum bar. Sample impurities: &lt;0.003% C, &lt;0.003% O 2 , 0.0008% N 2 , &lt;0.08% other. Bar was annealed for 3 h at 1200 °C: hardness, 83 HV; grain size, ASTM No. 5. Crosshead speed: unnotched specimens, 0.5 mm/min More
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Elevated-temperature tensile properties of 1 mm thick electron-beam-melted tantalum sheet. Sample impurities (both lots): 0.0030% C, 0.0016% O2, 0.0010% N2, &lt;0.040% other. Stress-relieved sheet was cold rolled 95% and stress-relieved for 14 h at 730 °C; recrystallized sheet was cold rolled 75% and recrystallized by heating for 1 h at 1200 °C. Crosshead speed, 1.3 mm/min

Elevated-temperature tensile properties of 1 mm thick electron-beam-melted ...

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in Properties of Pure Metals > Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 107 Elevated-temperature tensile properties of 1 mm thick electron-beam-melted tantalum sheet. Sample impurities (both lots): 0.0030% C, 0.0016% O 2 , 0.0010% N 2 , &lt;0.040% other. Stress-relieved sheet was cold rolled 95% and stress-relieved for 1 4 h at 730 °C More
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Creep characteristics of 1 mm thick electron-beam-melted tantalum sheet. Sample impurities: 0.0030% C, 0.0016% O2, 0.0010% N2, &lt;0.040% other. Sheet was cold rolled 75% and recrystallized by heating for 1 h at 1200 °C.

Creep characteristics of 1 mm thick electron-beam-melted tantalum sheet. Sa...

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in Properties of Pure Metals > Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 111 Creep characteristics of 1 mm thick electron-beam-melted tantalum sheet. Sample impurities: 0.0030% C, 0.0016% O 2 , 0.0010% N 2 , &lt;0.040% other. Sheet was cold rolled 75% and recrystallized by heating for 1 h at 1200 °C. More
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Hot cracking of an electron beam weld due to accidental melting of the copp...

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in Visual Examination and Light Microscopy > Fractography
Published: 01 January 1987
Fig. 104 Hot cracking of an electron beam weld due to accidental melting of the copper backing plate. Note the extensive intergranular cracking and the grain-boundary copper film. (a) 4 ×. (b) 13 ×. (c) 68 ×. (d) 340 × More
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Schematics of electron beam consolidation and drip melting processes. (a) C...

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in Electron Beam Melting > Casting
Published: 01 December 2008
Fig. 3 Schematics of electron beam consolidation and drip melting processes. (a) Consolidation of coarse and solid scrap. (b) Continuous consolidation of raw material, chips, and solid scrap by direct feeding into a continuous casting crucible. (c) Drip melting of horizontally fed compacts More
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Four-gun 1200 kW combined electron beam drip melting and cold hearth meltin...

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in Electron Beam Melting > Casting
Published: 01 December 2008
Fig. 6 Four-gun 1200 kW combined electron beam drip melting and cold hearth melting furnace More
Book Chapter

Powder-Bed Fusion

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By Leon Pope, Darpan Shidid, Kate Fox
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006859
EISBN: 978-1-62708-392-8
... Abstract Powder-bed fusion (PBF) is a group of additive manufacturing (AM) processes that includes selective laser sintering, selective laser melting, and electron beam melting. This article explains the processes and parameters of PBF systems that are used for biomedical applications. It also...
Abstract
Powder-bed fusion (PBF) is a group of additive manufacturing (AM) processes that includes selective laser sintering, selective laser melting, and electron beam melting. This article explains the processes and parameters of PBF systems that are used for biomedical applications. It also presents the desirable properties of biomedical devices and the advantages of using PBF systems for biomedical applications.
View PDF for content titled, Powder-Bed Fusion
Book Chapter

Additive Manufacturing of Tungsten, Molybdenum, and Cemented Carbides

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By Ravi K. Enneti, Juan L. Trasorras, Heinrich Kestler
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
... Abstract Tungsten, molybdenum, and cemented carbide parts can be produced using several additive manufacturing technologies. This article classifies the most relevant technologies into two groups based on the raw materials used: powder-bed methods, such as selective laser melting, electron beam...
Abstract
Tungsten, molybdenum, and cemented carbide parts can be produced using several additive manufacturing technologies. This article classifies the most relevant technologies into two groups based on the raw materials used: powder-bed methods, such as selective laser melting, electron beam melting, and binder jet three-dimensional (3-D) printing, and feedstock methods, such as fused-filament fabrication and thermoplastic 3-D printing. It discusses the characteristics, processing steps, properties, advantages, limitations, and applications of these technologies.
View PDF for content titled, Additive Manufacturing of Tungsten, Molybdenum, and Cemented Carbides