electron beam melting factors

Electron Beam Melting - an overview | ScienceDirect Topics

Electron beam melting (EBM) is one of the latest AM techniques using a computer-controlled electron gun to create fully dense 3D objects directly from metal powder. Like other techniques using AM, this also creates objects layer by layer (Nasr et al., 2014).EBM machines were first commercialized in approximately 1997 by the Arcam AB Corporation in Sweden (Nakao et al., 2014).

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Electron Beam Melting: Everything You Need To Know

2020-1-17 · Electron Beam Melting is one of the main metal 3D printer technologies, having been commercialized by Arcam in recent years. It’s similar to Direct Metal Laser Sintering, though with one key difference we’ll explain below.. EBM falls under the Powder Bed Fusion umbrella along with DMLS and SLM, as does Selective Laser Sintering if you include plastics.

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Investigation on Electron Beam Melting: Dimensional ...

2018-11-1 · Electron Beam Melting (EBM) is one of a few Additive Manufacturing (AM) technologies capable of making full-density functional metallic parts. In particular, the ability of direct fabrications of metallic parts can accelerate product designs and developments in a wide range of metallic-part applications, especially for complex components, e.g ...

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Electron Beam Melting: From Powder to Part - EWI

2018-12-6 · Electron beam melting is a powder-bed, fusion-based AM technology developed by Arcam. Here, an electron-beam gun with a tungsten filament (shown in Figure 1) is used as a heat source that emits electrons accelerated at a high voltage of 60kV. First, a defocused electron beam preheats the powder bed. This is followed by a focused electron beam ...

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Rapid Manufacturing with Electron Beam Melting (EBM)

2020-4-24 · Electron Beam Melting benefits from all of these factors in the same way. Compared with laser sintering/melting additional benefits include: • Higher efficiency in generating the beam of energy resulting in lower power consumption as well as lower maintenance and installation costs • High actual overall power resulting in high build speeds

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Electron Beam Melting - ResearchGate

Electron beam melting is a unique prototyping and manufacturing process that can simultaneously reduce costs, weight and time. It involves the melting and solidifying one layer of titanium powder ...

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Modelling and simulation of electron beam melting ...

2009-12-1 · First papers with a description of the electron beam as an energy source for direct manufacturing were published in 1992 [].In 1997, patents led to the founding of the Swedish company ARCAM AB, that distributes the two systems EBM S12 and A2 [].Taminger et al. [] and Davé [] suggested the use of wire feed systems to produce parts by means of an electron beam.

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SOME CHARACTERISTICS OF ELECTRON BEAM MELTING

2018-5-8 · The electron beam melting was used by Rännar et al. in order to obtain free-form cooling channels by the di-rect-metal rapid tooling method using the electron beam melting [7]. They showed that in this way some ad-vantages concerning cooling time and dimensional accu-racy could be ensured just by applying the electron beam melting.

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Response of different electron beam melting produced

electron beam melting (EBM) enable production of near net shaped highly complex geometries in layer by layer fashion using difficult to machine materials like Alloy 718 [1]. Alloy 718 is a precipitate strengthened NieFe based superalloy widely used in aerospace industry due to its excellent properties like high strength, high temperature

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The electropolishing of electron beam melting, additively ...

2020-10-13 · The electropolishing of electron beam melting, additively manufactured TI6AL4V titanium : relevance, process parameters and surface finish. Austin Lassell University of Louisville ... other factors such that the uncommonly complex and rough AM part surface can be uniformly leveled and polished is a sizeable task that will take years of careful ...

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Electron Beam Melting - ResearchGate

Electron beam melting is a unique prototyping and manufacturing process that can simultaneously reduce costs, weight and time. It involves the melting and solidifying one layer of titanium powder ...

Read More
Response of different electron beam melting produced

electron beam melting (EBM) enable production of near net shaped highly complex geometries in layer by layer fashion using difficult to machine materials like Alloy 718 [1]. Alloy 718 is a precipitate strengthened NieFe based superalloy widely used in aerospace industry due to its excellent properties like high strength, high temperature

Read More
The electropolishing of electron beam melting, additively ...

2020-10-13 · The electropolishing of electron beam melting, additively manufactured TI6AL4V titanium : relevance, process parameters and surface finish. Austin Lassell University of Louisville ... other factors such that the uncommonly complex and rough AM part surface can be uniformly leveled and polished is a sizeable task that will take years of careful ...

Read More
Rapid Manufacturing with Electron Beam Melting (EBM)

2020-4-24 · Electron Beam Melting benefits from all of these factors in the same way. Compared with laser sintering/melting additional benefits include: • Higher efficiency in generating the beam of energy resulting in lower power consumption as well as lower maintenance and installation costs • High actual overall power resulting in high build speeds

Read More
Electron Beam Melting: From Powder to Part - EWI

2018-12-6 · Electron beam melting is a powder-bed, fusion-based AM technology developed by Arcam. Here, an electron-beam gun with a tungsten filament (shown in Figure 1) is used as a heat source that emits electrons accelerated at a high voltage of 60kV. First, a defocused electron beam preheats the powder bed. This is followed by a focused electron beam ...

Read More
SOME CHARACTERISTICS OF ELECTRON BEAM MELTING

2018-5-8 · The electron beam melting was used by Rännar et al. in order to obtain free-form cooling channels by the di-rect-metal rapid tooling method using the electron beam melting [7]. They showed that in this way some ad-vantages concerning cooling time and dimensional accu-racy could be ensured just by applying the electron beam melting.

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Transport Phenomena in Electron Beam Melting and ...

2021-7-5 · Three topics related to electron beam melting and evaporation are considered with particular attention to the region near the melt interface with the vacuum. The first is fluid flow, heat transfer and skull shape in a melting/refining hearth, addressed by means of a finite element calculation.

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Investigation of Tantalum Recycling by Electron Beam

2017-5-7 · e-beam melting for each technological regime of refining is presented in Table 2. The results show that, for the performed experiments, the best purification of Ta (99.96) is obtained during prolonged melting with low electron beam power ( = 20 min and P b = 18 kW) or during short refining with higher beam power ( = 3 min and P b = 21.6 kW ...

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ELECTRON BEAM MELTING OF ALLOY 718 - Chalmers

electron beam melting (EBM) is a powder bed fusion (PBF) process in which a high power electron beam is used to build the parts by selective melting of thin layers in a metal powder bed, according to the geometry from a CAD-file. Among other applications, EBM is seen as a potential method

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BMP-2 and VEGF: implantation of electron beam melting ...

Electron beam melting (EBM)-fabricated porous titanium implants possessing low elastic moduli and tailored structures are promising biomaterials for orthopedic applications. However, the bio-inert nature of porous titanium makes reinforcement with growth factors (GFs) a promising method to enhance implant in vivo performance. Bone-morphogenic ...

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Electron Beam Melting: From Powder to Part - EWI

2018-12-6 · Electron beam melting is a powder-bed, fusion-based AM technology developed by Arcam. Here, an electron-beam gun with a tungsten filament (shown in Figure 1) is used as a heat source that emits electrons accelerated at a high voltage of 60kV. First, a defocused electron beam preheats the powder bed. This is followed by a focused electron beam ...

Read More
Rapid Manufacturing with Electron Beam Melting (EBM)

2020-4-24 · Electron Beam Melting benefits from all of these factors in the same way. Compared with laser sintering/melting additional benefits include: • Higher efficiency in generating the beam of energy resulting in lower power consumption as well as lower maintenance and installation costs • High actual overall power resulting in high build speeds

Read More
Factors influencing the fluid flow and heat transfer in ...

Factors influencing the fluid flow and heat transfer in electron beam melting of Ti-6Al-4V: Creator: Meng, Tao: Publisher: University of British Columbia: Date Issued: 2009: Description: Electron Beam Cold Hearth Remelting (EBCHR) and its associated casting process is an important consolidation technique for the treatment of virgin titanium ...

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SOME CHARACTERISTICS OF ELECTRON BEAM MELTING

2018-5-8 · The electron beam melting was used by Rännar et al. in order to obtain free-form cooling channels by the di-rect-metal rapid tooling method using the electron beam melting [7]. They showed that in this way some ad-vantages concerning cooling time and dimensional accu-racy could be ensured just by applying the electron beam melting.

Read More
Investigation of Tantalum Recycling by Electron Beam

2017-5-7 · e-beam melting for each technological regime of refining is presented in Table 2. The results show that, for the performed experiments, the best purification of Ta (99.96) is obtained during prolonged melting with low electron beam power ( = 20 min and P b = 18 kW) or during short refining with higher beam power ( = 3 min and P b = 21.6 kW ...

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High Productivity Electron Beam Melting Additive ...

2011-12-1 · Executive Summary: The FastEBM project is aimed at developing the Electron Beam Melting (EBM) process, a form of 3D printing in metal, so that it can be deployed for airframe components. 3D printing is attractive as it efficiently uses material compared to machining parts from solid, and is at its most attractive for high cost materials; FastEBM focused on titanium alloy as this material is ...

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ELECTRON BEAM MELTING OF ALLOY 718 - Chalmers

electron beam melting (EBM) is a powder bed fusion (PBF) process in which a high power electron beam is used to build the parts by selective melting of thin layers in a metal powder bed, according to the geometry from a CAD-file. Among other applications, EBM is seen as a potential method

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Laser and electron‐beam powder‐bed additive

2015-10-21 · Mr. Swee Leong Sing is the main author of the paper. His contribution includes the research for literature for the bulk of this review paper, inclusive of describing selective laser melting and electron beam melting, design aspects, material properties and biological response, as well as the overall outline and flow of the paper. Dr.

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Simulation of Selective Electron Beam Melting Processes

parts. The e ect of the beam power, scan speed and layer thickness, which are considered as dominant parameters for the process, are investigated numerically. The simulation results are compared with experimental ndings during selective electron beam melting. The comparison shows that the proposed model, although 2D, is able to predict the main

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TECHNOLOGICAL AND ECONOMICAL ADVANTAGES OF

2018-4-14 · processes (melting and others) in unstable vacuum within the limits 1010ˉ² Pa [2]. Operation of g-discharge EB gun as based is on other physical principles than conventional thermionic EB guns – secondary electron emission from cooled cathode caused by ion bombardment from glow-discharge is source of beam in this gun (see figure 1). Fig.1.

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