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electron beam melting

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Published: 01 January 1998
Fig. 16-16 Schematic of the effects of laser and electron beam heating, melting, and solidification. Source: Ref 63 More
Image
Published: 01 January 2015
Fig. 8.7 Electron beam hearth melting and ingot casting More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230253
EISBN: 978-1-62708-298-3
... vacuum induction melting, vacuum arc melting, and electron beam melting, and some of the ways they have been used to cast beryllium alloys. The chapter also includes information on metal purification and grain refinement procedures. beryllium casting grain refinement ingots melting...
Image
Published: 01 January 2015
Fig. 8.53 Bleed air leak-detect bracket for Joint Strike Fighter built using electron beam melting technology. Courtesy of Oak Ridge National Laboratory More
Image
Published: 01 January 2015
, direct-metal laser sintering; EBM, electron beam melting More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... temperature. Tungsten and tungsten mill products are produced primarily by P/M techniques. Tungsten sheet has also been produced by chemical vapor deposition (CVD). Tungsten and tungsten alloys may also be produced by arc casting and electron beam melting, but these processes are not of significant...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850541
EISBN: 978-1-62708-260-0
... cyclic polarity (Dickinson). Use normal polarity, silk cloth, 0.04 A/cm2, 5 min (Dickinson). Use normal polarity, 2 min, 0.04 A/cm2 (Dickinson). Use cyclic polarity, 3 min, 0.04 A/cm2 (Dickinson). For 1 cm2 area, use 40 mA at 10 V ac for 10 min. For electron-beam-melted samples, use 50 mA at 20 V ac...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... melting, electron beam hearth melting, rammed graphite mold casting, sand casting, investment casting, hot isostatic pressing, weld repair, and heat treatment -- along with related equipment, process challenges, and achievable properties and microstructures. It also explains how titanium parts...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... laser and electron beams. The chapter compares methods and includes several example applications. chemical vapor deposition electron beam melting ion implantation laser melting low-pressure carburizing physical vapor deposition plasma carburizing plasma nitriding salt bath coating surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350087
EISBN: 978-1-62708-315-7
... Hardening In EB hardening, the surface of the hardenable steel is heated rapidly to the austenitizing temperature, usually with a defocused electron beam to prevent melting. The mass of the work-piece conducts the heat away from the treated surface at a rate that is rapid enough to produce hardening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... conversion of the kinetic energy of these electrons into thermal energy as they impact and penetrate into the workpiece on which they are impinging causes the weld-seam interface surfaces to melt and produces the weld-joint coalescence. Electron beam welding is used to weld any metal that can be arc welded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
... Abstract This article discusses the fusion welding processes that are most widely used for joining titanium, namely, gas-tungsten arc welding, gas-metal arc welding, plasma arc welding, laser-beam welding, and electron-beam welding. It describes several important and interrelated aspects...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
..., namely structural, hot melt, pressure sensitive, water based, and ultraviolet and electron beam cured. The chapter ends with a discussion on some general guidelines for adhesive bonding and the basic steps in the adhesive bonding process. adhesive bonding adhesively bonded joints adhesives...
Image
Published: 01 January 2015
Fig. 22.14 Schematic diagram of the effects of laser- and electron beam heating, melting, and solidification. Source: Ref 22.53 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
... The material from a thermal vaporization source reaches the substrate without significant collisions with gas molecules present in the space between the source and substrate. The source may be melted and evaporated by a number of different methods (e.g., electron beam heating, resistance heating, induction...
Image
Published: 01 January 2015
Fig. 8.62 Effect of cooling rate on beta grain size of Ti-6Al-4V produced using various methods. REP, rotating electrode process; PDME, pendent drop melt extraction; EBSQ, electron beam splat quenching; HA, hammer and anvil More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900305
EISBN: 978-1-62708-358-4
... heating, melting, and solidification ( Ref 59 ). Electron beam treatments must be conducted in vacuum, but laser light is not subject to this constraint and thus offers considerable flexibility in manufacturing operations. Also, unlike induction and flame heating, lasers can be located at some distance...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240583
EISBN: 978-1-62708-251-8
... be made by powder metallurgy (PM) techniques but are usually made by consumable electrode vacuum arc melting or by electron beam melting. Ingots are hot worked at 790 to 1205 °C (1450 to 2200 °F), followed by cold working and forming at 205 to 315 °C (400 to 600 °F). Niobium alloys can be recrystallized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110413
EISBN: 978-1-62708-247-1
... by the beam, especially if the sample is dirty or the chamber vacuum is poor. A large current applied to a delicate insulator may cause melting or electrostatic discharge. For electronic devices, beam penetration to the gate of a CMOS transistor may cause a threshold voltage shift. This shift can often...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 January 2023
DOI: 10.31399/asm.tb.itfdtktmse.t56060001
EISBN: 978-1-62708-440-6
... techniques. Physical vapor deposition (PVD) techniques include sputtering, e-beam evaporation, arc-PVD, and ion plating and are best suited for elements and compounds with moderate melting points or when a high-purity film is required. The remainder of the chapter covers chemical vapor deposition (CVD...