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directed-energy deposition

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Published: 30 September 2024
Fig. 10.7 Schematic diagram of the directed-energy deposition method More
Image
Published: 30 September 2024
Fig. 11.1 Schematics of different additive manufacturing variants. (a) Laser powder-bed fusion. (b) Laser directed-energy deposition. (c) Electron beam directed-energy deposition. CCD, charge-coupled device. (d) Gas metal arc directed-energy deposition. (e) Ultrasonic additive manufacturing More
Image
Published: 30 September 2024
Fig. 11.6 Microstructure of Ti-6Al-4V fabricated through laser directed-energy deposition (DED-L) showing (a) a mixed microstructure of fine, lamellar Widmanstätten structure and α phase in prior-β grains, and (b) only α′ martensite formed due to slow and fast cooling rates, respectively More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400391
EISBN: 978-1-62708-479-6
... manufacturing DDPM dual-drive planetary mill DED directed-energy deposition DLF directed-light fabrication DLP digital light processing DLW direct laser writing DMD direct metal deposition DMLS direct metal laser sintering DoD drop-on-demand DSC differential scanning...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400247
EISBN: 978-1-62708-479-6
... major types: powder-bed fusion, directed-energy deposition, and solid-state AM. Powder-Bed Fusion In powder-bed fusion (PBF), a high-energy power source is focused toward selective locations of the thin layer of powder spread over a substrate (powder bed) to locally melt and sinter the powder...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400207
EISBN: 978-1-62708-479-6
... Abstract This chapter gives a brief review of the development of additive manufacturing (AM) and the appeal of different of different AM methods. binder jetting directed energy deposition material extrusion material jetting photopolymerization powder bed fusion selective laser...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2024
DOI: 10.31399/asm.tb.pmamfa.t59400277
EISBN: 978-1-62708-479-6
... photopolymerization Directed-energy deposition Material extrusion Sheet lamination Powder-bed fusion Material jetting Binder jetting Rapid prototyping of complex structures and devices using 3D printing has demonstrated superior advantages that can enhance and control accuracy and speed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
... investigative effort, especially in more recent years, was and is still directed toward repairing the plasma-facing components in the International Thermonuclear Experimental Reactor and Tokamak Fusion Test Reactor. Such studies involved the use of several different physical vapor deposition methods. Another...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040020
EISBN: 978-1-62708-428-4
... is suitable for the deposition of oxygen- and temperature-sensitive materials and can produce thick coatings exhibiting wrought-like microstructures with near theoretical density. Cold spray is being used in the military and in aerospace and energy industry applications. The main research priorities...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430107
EISBN: 978-1-62708-253-2
... directions there is destructive interference (i.e., the combining waves are out of phase and there is no net energy exiting the atom). However, the atoms in a crystal are arranged in a regular pattern that forms an ordered array. In such an ordered array of atoms, there are planes of high atomic density (i.e...
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
... layer or coating, deposited on a substrate by another technique, is subjected to a high-energy ion beam, as shown schematically in Fig. 22.5 ( Ref 22.14 ). Ions are deposited and transmitted through the coating and into the substrate, producing the same changes produced by direct ion implantation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... the critical velocity ( v crit ), particular thermomechanical conditions are reached, under which material can be deposited as a result of high-kinetic-energy impacts. It is shown later how this critical velocity depends on material strength, density, melting temperature, heat capacity, and impact temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110351
EISBN: 978-1-62708-247-1
... to be due to channeling of the Ga+ in certain orientations [34] ; the denser packed (111) crystal plane results in the energy deposition near the surface and thus increased sputtering over the more open planes. This is of particular concern when milling through power planes or bus lines to expose...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110461
EISBN: 978-1-62708-247-1
..., the elastically (zero-loss) and inelastically (energy-loss) scattered electrons from the feature of interest in the sample are directed into a spectrometer attached to the bottom of the TEM column [5 , 40 - 42] . The spectrometer consists of a sector magnet and a detection system. The sector magnet deflects...
Book Chapter

By Eren Billur
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400181
EISBN: 978-1-62708-316-4
... the pump(s) and motor(s) to be selected for the highest power requirement ( Ref 12.1 , 12.8 ). Fig. 12.10 Direct-drive circuit for a hydraulic press. Source: Ref 12.21 Direct-driven hydraulic presses can be more energy efficient than accumulator-driven presses because the pump supplies...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110335
EISBN: 978-1-62708-247-1
... ( 2010 ): C6F15 – C6F21 . 10.1116/1.3511509 [8] Shorubalko Ivan , Pillatsch Lex , and Utke Ivo . “ Direct–Write Milling and Deposition with Noble Gases. ” In Helium Ion Microscopy , 355 – 393 . Springer , 2016 . 10.1007/978-3-319-41990-9_15 [9] Castaldo Vincenzo...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030380
EISBN: 978-1-62708-282-2
.... Resin polymerized from acrylic acid, methacrylic acid, esters of these acids, or acrylonitrile. activation. The changing of a passive surface of a metal to a chemically active state. Contrast with passivation. active. The negative direction of electrode potential. Also used to describe corrosion and its...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... Fracture energy, kJ/m 2 GPa 10 6 psi MPa ksi MPa ksi Graphite 10–15 1.46–2.17 40–60 5.8–8.7 110–200 16–29 0.01 Unidirectional C-C composite 120–150 17.4–21.7 600–700 87–101 500–800 72.5–116 1.4–2.0 Three-directional C-C composite 40–100 5.8–14.5 200–350 29–50.7 150...