scholarly journals Simulation of the electron beam welding process of a bimetallic ring by means of ANSYS

2021 ◽  
Vol 2094 (4) ◽  
pp. 042092
Author(s):  
S O Kurashkin ◽  
D V Rogova ◽  
Ya A Tynchenko
Keyword(s):  
Electron Beam ◽  
Electron Beam Welding ◽  
Graphical Representation ◽  
Welding Process ◽  
Process Time ◽  
Electron Beam Current ◽  
Electric Motors ◽  
Technological Parameters ◽  
Material Costs ◽  
Technological Mode

Abstract The article is devoted to modeling the process of electron beam welding in the manufacture of electric motors with a bimetallic ring used in biofuel preparation reactors. The main problem at the current stage of production is the choice of the technological mode of welding and the repeatability of the result. In this work, the authors simulate the welding of electric motors with a bimetallic ring under various technological modes in the ANSYS simulation environment in the process of electron beam welding. The result of the work will be a graphical representation of the temperature distribution on the surface of the product at various values of the technological parameters (electron beam current, welding speed and welding process time). Today, the choice of modes for a new technological process is carried out experimentally, which entails high material costs. The approach proposed by the authors allows, with minimal time and material costs, to select a technological mode for welding products from new alloys.

Study on Welding Process of Clutch Wheel-Hub Weldment Using Vacuum Electron Beam Welding

2012 ◽  
Vol 190-191 ◽  
pp. 187-190
Author(s):  
De Quan Wang
Keyword(s):  
Electron Beam ◽  
Vickers Hardness ◽  
Electron Beam Welding ◽  
Testing Machine ◽  
Welding Process ◽  
Difficult Problem ◽  
Technological Parameters ◽  
Welding Seam ◽  
Hardness Tester ◽  
Torsional Testing

Abstract. In order to resolve the manufacturing difficult problem of a new kind of clutch wheel-hub weldment of a new type of engineering machinery, and ensure the manufacturing precision and welded joint quality, a new manufacturing process was studied using vacuum electron beam welding (VEBW) for the manufacturing of this component. Static torsional strength was measured on static torsional testing machine. Microstructure morphologies of welding seam and heat affected zone were analyzed using scanning electron microscope. Vickers-hardness values of welding seams and heat affected zones were measured using Vickers-hardness tester. As a result, the welding process and the optimum technological parameters of VEBW of the weldment were obtained.

Numerical Simulation on Temperature Field of Electron Beam Welding of Magnesium Alloy and Study on Properties and Microstructure of Joint

2008 ◽  
Vol 575-578 ◽  
pp. 660-665 ◽  
Author(s):  
Hong Ye ◽  
Yi Luo ◽  
Zhong Lin Yan ◽  
Bin Shen
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Electron Beam ◽  
Magnesium Alloy ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Element Model ◽  
Experimental Result ◽  
Electron Beam Current ◽  
Az61 Magnesium Alloy

Magnesium alloys are being increasingly used in automotive and aerospace structures. In this study, welding of AZ61 magnesium alloy with 10 mm thickness was carried out using vacuum electron beam welding (EBW). By using the finite element model and the 3D moving double ellipsoid heat source model, numerical simulation method was employed to study the influence of the electron beam current on the temperature field of welding process and weld penetration. The microstructure and microhardness of weld joint obtained by the optimized vacuum EBW process had been investigated in detail. The results show that the numerical simulation result basically matches the experimental result. A favorable joint had been obtained by EBW for AZ61 magnesium alloy, in which heat affected zone was not evident, the fusion zone (FZ) consisted of fine-equiaxed grain. The weld hardness was greater than that of the base metal.

Research on Welding with Electron Beam of Multiple Overlapping Nickel Based Amorphous Ribbons

2020 ◽  
Vol 1157 ◽  
pp. 136-141
Author(s):  
Mircea Nicolaescu ◽  
Cosmin Codrean ◽  
Gabriela Victoria Mnerie ◽  
Mina Popescu
Keyword(s):  
Electron Beam ◽  
Welded Joints ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Technological Parameters ◽  
Casting Method ◽  
Planar Flow ◽  
Welding Equipment ◽  
Amorphous Ribbons ◽  
Planar Flow Casting

This paper presents experiments regarding the welding with electron beam of multiple overlapping Ni-based amorphous ribbons produced by "Planar flow casting" method [1]. Welded samples were performed, using the electron beam welding equipment “Chamber Machine EBG 45-150 K14” [2]. The welded joints were analyzed by SEM, EDX, XRD in order to optimize some technological parameters to avoid deterioration of the amorphous ribbons during the welding process [3].

Mathematical Modeling of Energy Distribution in Entering a Beam into the Workpiece Material in the Course of Electron Beam Welding

Vestnik MEI ◽  
2021 ◽  
Vol 3 (3) ◽  
pp. 88-95
Author(s):  
Sergey O. Kurashkin ◽  
◽  
Vadim S. Tynchenko ◽  
Aleksandr V. Murygin ◽  
◽  
...  
Keyword(s):  
Electron Beam ◽  
Energy Distribution ◽  
Mathematical Models ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Full Scale ◽  
Temperature Fields ◽  
Experimental Investigations ◽  
Technological Parameters ◽  
Welding Processes

Modeling of electron beam welding processes is one of the most important parts of applied research, because full-scale experimental investigations are either expensive or highly labor intensive. The problem of modeling the temperature fields at the electron beam entering stage during welding is considered. The aim of the study is to simplify the adjustment of the electron beam welding process technological parameters and to elaborate and develop more efficient control algorithms through replacing full-scale experiments by model ones. The mathematical body of the proposed solutions is constructed using the theories of thermal and welding processes, based on which the energy distribution mathematical models are developed. For practically implementing the computations, an algorithmic support is presented that allows the mathematical models to be applied in modern modeling systems, such as Matlab, Comsol Multiphysics, and Ansys. Apart from supplementing the set of existing mathematical models of the electron beam welding process, the obtained models for calculating the temperature in the beam entering area widen their application for calculating and optimizing the welding process, taking into account the workpiece temperature in the electron beam entering area. By using the proposed solutions, several numerical experiments were carried out for a workpiece made of VT-14 titanium alloy and two pieces of different thickness made of AMg-6 aluminum alloy. The obtained temperature fields and the rms values of process parameters are almost identical with the results of previously conducted full-scale studies.

Research on Welding with Electron Beam of Ni Based Amorphous Ribbons

2019 ◽  
Vol 1153 ◽  
pp. 108-112
Author(s):  
Mircea Nicolaescu ◽  
Cosmin Codrean ◽  
Markus Stuetz ◽  
Nicușor Alin Sîrbu ◽  
Viorel Aurel Şerban
Keyword(s):  
Electron Beam ◽  
Materials Science ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Technological Parameters ◽  
Welding Equipment ◽  
Amorphous Ribbons ◽  
Planar Flow Casting ◽  
University Of Technology ◽  
Technology Institute

This paper presents experiments regarding the welding with electron beam of Ni based amorphous ribbons produced by "Planar flow casting" method with the aid of "Politehnica" University of Timisoara equipment. Welded samples were performed in partnership with Graz University of Technology, Institute of Materials Science, Joining and Forming, using the electron beam welding equipment “Chamber Machine EBG 45-150 K14”. The welded joints were analyzed by SEM, EDX, XRD in order to optimize some technological parameters to avoid deterioration of the amorphous ribbons during the welding process.

GRADIENT BOOSTING METHOD APPLICATION TO SUPPORT PROCESS DECISIONS IN THE ELECTRON-BEAM WELDING PROCESS

2020 ◽  
Vol 21 (2) ◽  
pp. 206-214
Author(s):  
V. S. Tynchenko ◽  
◽  
I. A. Golovenok ◽  
V. E. Petrenko ◽  
A. V. Milov ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Gradient Boosting ◽  
Boosting Method

scholarly journals Electron beam welding of rectangular copper wires applied in electrical drives

2021 ◽  
Author(s):  
Tamás Tóth ◽  
Jonas Hensel ◽  
Sven Thiemer ◽  
Philipp Sieber ◽  
Klaus Dilger
Keyword(s):  
Electron Beam ◽  
Oxygen Content ◽  
Electron Beam Welding ◽  
Base Material ◽  
Fusion Welding ◽  
Eb Welding ◽  
Technological Parameters ◽  
Low Level ◽  
Residual Oxygen ◽  
Ofe Copper

AbstractThe so-called hairpin winding technology, which is specially tailored to electrical traction components, deploys rectangular plug-in copper wires in the stator. The fusion welding of the adjacent wire ends is associated with challenges due to the high thermal conductivity as well as the porosity formation of the copper. During this study, the electron beam (EB) welding of electrolytic tough pitch (ETP) and oxygen-free electronic grade (OFE) copper connectors was investigated. Subsequently, the specimens underwent X-ray computed tomography (CT) and metallographic examinations to characterize the joints. It was discovered that the residual oxygen content of the base material is responsible for the pore formation. With only a very low level of oxygen content in the copper, a porosity- and spatter-free welding can be reproducibly realized using the robust EB welding technology, especially for copper materials. By optimizing the parameters accordingly, joints exhibiting a low level of porosity were achieved even in the case of the alloy containing a high amount of residual oxygen. Beyond this, detailed analyses in terms of pore distribution were carried out and a good correlation between technological parameters and welding results was determined.

Study on Electron Beam Welding of AZ61 Magnesium Alloy

2010 ◽  
Vol 34-35 ◽  
pp. 1516-1520
Author(s):  
Hong Ye ◽  
Han Li Yang ◽  
Zhong Lin Yan
Keyword(s):  
Electron Beam ◽  
Magnesium Alloys ◽  
Welding Speed ◽  
Electron Beam Welding ◽  
Weld Zone ◽  
Welding Process ◽  
Processing Parameters ◽  
Beam Current ◽  
Fine Grained ◽  
Section Shape

Electron beam welding process of AZ61 with 10mm thickness magnesium alloys was investigated. The influence of processing parameters including focusing current, welding beam current and welding speed was researched. The results show that an ideal weld bead can be formed by choosing processing parameters properly. Focusing current is main parameter that determines cross section shape. The beam current and welding speed are main parameters that determine the weld width and dimensions. The test results for typical welds indicate that the microhardness of the weld zone is better than that of the base meta1. A fine-grained weld region has been observed and no obvious heat-affected zone is found. The fusion zone mainly consists of small α-Mg phase and β-Mg17A112. The small grains and β phases in the joint are believed to play an important role in the increase of the strength of weld for AZ61 magnesium alloys.

scholarly journals Development of Welding P92 Pipes Using the Reduced Pressure Electron Beam Welding Process for a Study of Creep Performance

2014 ◽  
Author(s):  
Nick Bagshaw ◽  
Chris Punshon ◽  
John Rothwell
Keyword(s):  
Electron Beam ◽  
Heat Input ◽  
Power Plants ◽  
Electron Beam Welding ◽  
Welding Process ◽  
Welding Parameters ◽  
Pipe Material ◽  
Reduced Pressure ◽  
Type Iv ◽  
Type Iv Cracking

Boiler and steam piping components in power plants are fabricated using creep strength enhanced ferritic (CSEF) steels, which often operate at temperatures above 550°C. Modification of alloy content within these steels has produced better creep performance and higher operating temperatures, which increases the process efficiency of power plants. The improved materials, however, are susceptible to type IV cracking at the welded regions. A better understanding of type IV cracking in these materials is required and is the basis of the Technology Strategy Board (TSB) UK funded VALID (Verified Approaches to Life Management & Improved Design of High Temperature Steels for Advanced Steam Plants) project. In order to study the relationship between creep performance and heat input during welding, several welds with varying amounts of heat input and resultant HAZ widths were produced using the electron beam welding process. The welding parameters were developed with the aid of weld process modeling using the finite element (FE) method, in which the welding parameters were optimized to produce low, medium and high heat input welds. In this paper, the modeling approach and the development of electron beam welds in ASTM A387 grade P92 pipe material are presented. Creep specimens were extracted from the welded pipes and testing is ongoing. The authors acknowledge the VALID project partners, contributors and funding body: Air Liquide, Metrode, Polysoude, E.ON New Build & Technology Ltd, UKE.ON, Doosan, Centrica Energy, SSE, Tenaris, TU Chemnitz, The University of Nottingham, The Open University and UK TSB. Paper published with permission.

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