Peskar' — An electron beam generator for industrial applications

1995 ◽  
Vol 38 (12) ◽  
pp. 1279-1282 ◽  
Author(s):  
N. A. Ratakhin ◽  
V. F. Fedushchak ◽  
A. N. Shepelev
Keyword(s):  
Electron Beam ◽  
Industrial Applications

Direct-Writing of Cu Nano-Patterns with an Electron Beam

2015 ◽  
Vol 21 (6) ◽  
pp. 1639-1643 ◽  
Author(s):  
Shih-En Lai ◽  
Ying-Jhan Hong ◽  
Yu-Ting Chen ◽  
Yu-Ting Kang ◽  
Pin Chang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Exposure Time ◽  
Metal Ion ◽  
Reduction Rate ◽  
Industrial Applications ◽  
Growth Stages ◽  
Sample Holder ◽  
Direct Writing ◽  
Transmission Electron ◽  
Aqueous Layer

AbstractWe demonstrate direct electron beam writing of a nano-scale Cu pattern on a surface with a thin aqueous layer of CuSO4 solution. Electron beams are highly maneuverable down to nano-scales. Aqueous solutions facilitate a plentiful metal ion supply for practical industrial applications, which may require continued reliable writing of sophisticated patterns. A thin aqueous layer on a surface helps to confine the writing on the surface. For this demonstration, liquid sample holder (K-kit) for transmission electron microscope (TEM) was employed to form a sealed space in a TEM. The aqueous CuSO4 solution inside the sample holder was allowed to partially dry until a uniform thin layer was left on the surface. The electron beam thus reduced Cu ions in the solution to form the desired patterns. Furthermore, the influence of e-beam exposure time and CuSO4(aq) concentration on the Cu reduction was studied in this work. Two growth stages of Cu were shown in the plot of Cu thickness versus e-beam exposure time. The measured Cu reduction rate was found to be proportional to the CuSO4(aq) concentration.

Large area electron-beam-excited plasma of meter size for industrial applications

Vacuum ◽  
2002 ◽  
Vol 66 (3-4) ◽  
pp. 203-207
Author(s):  
H Homyara ◽  
S Ahmad ◽  
S Ikezawa ◽  
K Baba ◽  
T Yoshioka ◽  
...  
Keyword(s):  
Electron Beam ◽  
Industrial Applications ◽  
Large Area

scholarly journals Ultra-nano indentation properties of crosslinked PBT

2018 ◽  
Vol 210 ◽  
pp. 02038
Author(s):  
Martin Ovsik ◽  
Tomas Fiala ◽  
Miroslav Manas ◽  
Adam Dockal
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Crosslinking Agent ◽  
Industrial Applications ◽  
Basic Material ◽  
Polybutylene Terephthalate ◽  
Beam Radiation ◽  
Nano Indentation ◽  
Engineering Plastics ◽  
Radiation Induced

This article deals with the use of Ultra-nano indentation Tester UNHT3 for the measurement of (ultra nano) mechanical properties. The effect of electron beam (EB) radiation on Polybutylene terephthalate (PBT) was investigated. To clarify whether crosslinking could take place without or only with the presence of a crosslinking agent, special attention was paid to the incorporation of this agent into tested polymer. In this study we have investigated the effect of crosslinking agent, and instantaneously electron beam radiation-induced crosslinking in the presence of Triallyl cyanurate on various mechanical properties of PBT. The results show that the influence of radiation has improved the observed properties in the surface layer. The increase in ultra-nano properties was around 26% over the basic material. Engineering plastics like Poly (butylene terephthalate) due to their desirable properties have various industrial applications.

Additive Manufacturing for Medical and Biomedical Applications: Advances and Challenges

2014 ◽  
Vol 783-786 ◽  
pp. 1286-1291 ◽  
Author(s):  
Andrey Koptioug ◽  
Lars Erik Rännar ◽  
Mikael Bäckström ◽  
Marie Cronskär
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Electron Beam Melting ◽  
Biomedical Applications ◽  
Rapid Development ◽  
Industrial Applications ◽  
Post Processing ◽  
New Materials ◽  
Industrial Manufacturing ◽  
Complex Shapes

Additive Manufacturing (AM) has solidly established itself not only in rapid prototyping but also in industrial manufacturing. Its success is mainly determined by a possibility of manufacturing components with extremely complex shapes with minimal material waste. Rapid development of AM technologies includes processes using unique new materials, which in some cases is very hard or impossible to process any other way. Along with traditional industrial applications AM methods are becoming quite successful in biomedical applications, in particular in implant and special tools manufacturing. Here the capacity of AM technologies in producing components with complex geometric shapes is often brought to extreme. Certain issues today are preventing the AM methods taking its deserved place in medical and biomedical applications. Present work reports on the advances in further developing of AM technology, as well as in related post-processing, necessary to address the challenges presented by biomedical applications. Particular examples used are from Electron Beam Melting (EBM), one of the methods from the AM family.

Microstructure And Mechanical Properties Of A Cold-Work Tool Steel Produced Via Electron Beam Melting (EBM)

2021 ◽  
Author(s):  
Selte Aydin ◽  
Oikonomou Christos ◽  
Karamchedu Seshendra ◽  
Botero Carlos ◽  
Ramsperger Markus
Keyword(s):  
Electron Beam ◽  
Tool Steel ◽  
Electron Beam Melting ◽  
High Performance ◽  
Cold Work ◽  
Industrial Applications ◽  
Carbon Steels ◽  
Suitable Heat Treatment ◽  
Cold Work Tool Steel ◽  
Metal Additive

Electron Beam Melting (EBM) is one of the most promising techniques within Metal Additive Manufacturing (AM) techniques, which currently is for the fabrication of high performance components for the aerospace and medical industries, mostly. Among the industrial applications envisioned for the future of EBM, the fabrication of high carbon steels for the tooling industry is of great interest.In this study, martensitic highly alloyed (Cr-Mo-V) cold-work tool steel was processed by EBM. A suitable heat treatment was proposed in order to obtain an optimal microstructure, which was studied by means of optical and scanning-electron microscopy. The performance of the material was evaluated based on the hardness achieved and the abrasive wear resistance of the material processed through EBM when compared with that of the conventionally produced state.

Mechanical Characterization of Dissimilar Alloys Joined using Electron Beam Welding: Technical Note

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
V.K. Bupesh Raja ◽  
C. Krishnaraj ◽  
K. Logesh
Keyword(s):  
Electron Beam ◽  
Copper Alloy ◽  
Mechanical Characterization ◽  
Electron Beam Welding ◽  
Industrial Applications ◽  
Technical Note ◽  
Dissimilar Metal ◽  
Dissimilar Alloys ◽  
Experimental Fusion

Electron Beam Welding (EBW) is used in various industrial applications for joining dissimilar metals due to its accuracy and good quality joints. International Thermonuclear Experimental Reactor (ITER) is the first experimental fusion power generating reactor in India. It uses a host of metals and alloys like Ti-6Al-4V, Ni-Al bronze and a special copper alloy (CRZ). This investigation aims to study the metallurgical and mechanical aspects of CRZ alloy and its EBW joint with a dissimilar metal like Nickel and stainless steel. Characterization includes material composition and effect of heat-treatment. The CRZ alloys were solution annealed at the temperature of 980 degrees C for 15 minutes and then aged at 460-480 degrees C for 4.5 hrs. The EBW welded joints were fabricated with CRZ-CRZ, CRZ-Ni and Ni-SS combination. The microstructure and mechanical properties were analyzed.

Deformation Evaluation of Part Overhang Configurations in Electron Beam Additive Manufacturing

2015 ◽  
Author(s):  
Bo Cheng ◽  
Kevin Chou
Keyword(s):  
Electron Beam ◽  
Additive Manufacturing ◽  
Beam Current ◽  
Solid Substrate ◽  
Industrial Applications ◽  
Deformation Condition ◽  
Fe Model ◽  
Porosity Level ◽  
Powder Bed ◽  
Thermomechanical Process

Powder-bed electron beam additive manufacturing (EBAM) has emerged as a cost-effective process for many industrial applications. Intuitively, EBAM would not require support structures for overhang geometry because the powder bed would self-support the overhang weight. However, without a proper support structure, overhang warping actually occurs in practices. In this study, a two dimensional (2D) finite element (FE) model was developed to study the thermomechanical process of EBAM. The model was applied to evaluate (1) the process parameter effect, (2) the overhang and support configuration effect, and (3) the powder porosity effect on overhang deformations. The major results are summarized as follows. (1) Increasing the beam speed and diameter will result in less deformation in an overhang area, while increasing the beam current will worsen the deformation condition. (2) A smaller tilt angle will cause a larger overhang deformation. (3) A support column, even placed away from the solid substrate side, will minimize overhang deformations. (4) An anchor-free solid piece beneath the overhang can reduce the deformation with an appropriate gap. (5) A lower powder porosity level may alleviate overhang deformations.

Electron Beam Welding of Aluminum Alloys

2019 ◽  
Author(s):  
Mohamed Sobih ◽  
Zuhair Elseddig
Keyword(s):  
Electron Beam ◽  
Aluminum Alloys ◽  
Weld Joint ◽  
Electron Beam Welding ◽  
Industrial Applications ◽  
Hot Tearing ◽  
Fusion Welding ◽  
Deep Penetration ◽  
Width Ratio ◽  
Aircraft Industry

Aluminum alloys are the subject of increasing interest in the automotive industry, as well as the aircraft industry, aiming to reduce the weight of components and also allowing a profit in term of energy saving. In assembly process, riveting has been widely used in the aircraft industry, whereas welding seems to be available in the car industry in the case of aluminum alloys. Nevertheless, conventional fusion welding can generate defects, such as gas porosity, oxide inclusions, solidification cracking (hot tearing), reduced strength in both the weld, and heat-affected zone (HAZ), which could limit its development. Electron beam welding (EBW) has unique advantages over other traditional fusion welding methods due to high energy density, deep penetration, large depth-to-width ratio, and small HAZ. EBW has been developed for many years and is being increasingly implemented in various industrial applications. In many cases, it has proven to be an efficient method for joining difficult to weld materials. One of the major problems associated with the EBW is how to select a proper combination of the process parameters because improper selection of these parameters causes defects in the weld joint, which could seriously influence the weld mechanical properties. This work introduces an overview of the EBW process, its parameters, process simulation, process optimization, and finally characterization of the electron beam weld joint of 2219 aluminum alloy.

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