Mar 17, 2016 electron beam machining ebm is a thermal process. Dec 07, 2016 electron beam machining is a kind of machining process by using highvelocity electron beam. Electron beam machining is a thermal nontraditional process, uses electrical energy to generate thermal energy for removing material. Electronbeam machining ebm is a process where highvelocity electrons concentrated into a narrow beam are directed toward the work piece, creating heat and vaporizing the.
The cathode is generally made of tungsten or tantalum. A pulsating stream of highspeed electrons produced by. Electron beam machining ebm is a metal removal process by a high velocity focused stream of electrons. Electronbeam machining is a kind of machining process by using highvelocity electron beam.
There are many specifications to this power, the current density must be high, the difference between the tool and the work piece must be low for higher accuracy, thus the voltage must be low to avoid a short circuit and the control system uses some of. Electron beam machining ebm is a thermal machining process in which highvelocity electrons concentrated into a narrow beam are used for instantly heating, melting, or. When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. In an electron beam machining, the electrons strike the. Ionbeam machining or etching is generally a surface finishing process in which the material removal takes place by sputtering of ions. Electron beam welding process, applications and equipment. Electron beam machiningebm electron machining free 30. The applications of the electron beam machining technology in. The power needed to operate the ecm is obviously electrical. The electron beam melting and refining of metals is accomplished using electron beams as a heating source in a vacuum chamber with a vacuum pressure of 58. The process is different from electric discharge, electron beam, laser and plasma arc machining in that the process does not depend on heating of the workpiece to the point of evaporation. Ion beam machining or etching is generally a surface finishing process in which the material removal takes place by sputtering of ions. Such processing is carried out utilizing the energy of coherent photons or laser beam, which is mostly converted into thermal energy upon.
In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. It is a nontraditional machining process in which no physical tool is used. Chinese, japanese, german, italian what is electron beam drilling ebd. Oct 29, 2017 education is strength in this video we can learn electron beam machining and advantages of electron beam machining, applications of electron beam machining. It is similar to the electron beam welding machine. The ebm machine uses an electron beam gun to melt metal.
Electron beam machining introduction a brief history development of eb technology is closely related with advances in vacuum engineering and electron optics. Introduction the focused ion beam fib microscope has gained widespread use in fundamental materials studies and technological applications over the last several years. Here a steam of high speed electrons impinges on the work surface so that the kinetic energy of electrons is transferred to. Aug 24, 2016 electrochemical machining ecm seminar with pdf report. In ebm, electrons are accelerated to high velocity as half of the light speed, then it is impinged to. Electron beam machining ebm introduction electron beam machining is a thermal process used for metal removal during the machining process. This report focuses on the top players in north america, europe, china, japan. Ebm is an alternate additive metal process in comparison to dmls, and is a perfect solution for large parts built using ti6ai4v. Jan 06, 2015 electron beam machining equipment the basic functions of any electron beam gun are to generate free electrons at the cathode, accelerate them to a sufficiently high velocity and to focus them over a small spot size.
Electron beam machining equipment the basic functions of any electron beam gun are to generate free electrons at the cathode, accelerate them to a sufficiently high velocity. Laser beam machining main parts, principle, working with. Through introduction of the principle and characteristics of electron beam machining technology, the application status and application instance of electron beam in research of materials. In addition to making eb and laser welding equipment, ptr assists customers with weld process development and provides maintenance and spares support for electron beam welding systems. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Displaying ion beam machining powerpoint presentations secondary electron endpoint researchgate ppt presentation summary. Laser beam machining is a thermal machining process which uses laser beam to produce heat. Electron beam machining ebm a magnetic deflection coil is used to make electron beam circular and to focus electron beam at a point localized heating the process is carried out in.
Electron beam machining powerpoint ppt presentations powershow. Laser beam machining lbm is one amongst the foremost widely used thermal energy based noncontact kind advance machining method which may be applied for nearly. Laser beam machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending etc. A detailed notes on electron beam machining process, and surely helps you. In the electron beam machining process, a high velocity focused beam of electrons are used to remove the. Parametric analysis of cutting parameters for laser beam. Ebm can be used for very precise cutting or boring of a wide variety of metals. A hot cathode emits electrons, which are accelerated towards an anode, passing through an aperture to reach the accelerating waveguide. Electron beam melting an overview sciencedirect topics. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used. About us electron beam drilling capabilities applications contact us.
Find powerpoint presentations and slides using the power of, find free. Laser beam machining lbm, surface roughness, response surface methodology. May 02, 2017 laser beam machining lbm is a form of machining process in which laser beam is used for the machining of metallic and nonmetallic materials. Ptr is an electron beam welding systems manufacturer and contract welding service provider on the leadingedge of electron beam and vacuum welding technology. Notes on electron beam machining ebm me mechanical. This video gives the working principle of electron beam machining in two minute for best understand.
Electron beam machining electron cathode avaliacao. Mar 28, 2016 introduction ebm electron beam machining ebm is a thermal material removal process that utilizes a focused beam of highvelocity electrons to perform highspeed drilling and cutting. In ibm a stream of charged atoms ions of an inert gas, such as argon, is accelerated in a vacuum by high energies and directed toward a solid workpiece. In the electrical beam machining, electrical energy is used to generate the electrons with high energy. Electron beam machining ebm a magnetic deflection coil is used to make electron beam circular and to focus electron beam at a point localized heating the process is carried out in a vacuum chamber to prevent electrons from colliding with molecules of the atmospheric air and to prevent tungsten filament from getting oxidizing with air. Introduction ebm electron beam machining ebm is a thermal material removal process that utilizes a focused beam of highvelocity electrons to perform highspeed drilling. Further, the beam needs to be manoeuvred if required by the gun.
View electron beam machining process ppts online, safely and virusfree. Aim of the presentation give brief information about electro chemical machining process show the ecms working principles and tools define the advantages and disadvantages brief. Electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. View and download powerpoint presentations on electron beam machining ppt. In ibm a stream of charged atoms ions of an inert gas, such as argon, is accelerated in a. The basic functions of any electron beam gun are to generate free electrons at the cathode, accelerate them to a sufficiently high velocity and to focus them over a small spot size. Other articles where electronbeam machining is discussed. It is an iniatior of newer tecniques that could be benefical for industries. Pdf electron beam machining yunitha ratnadilla academia. Ion beam machining machine tool technology britannica. As the electrons strike the work piece with high velocity. Here a steam of high speed electrons impinges on the work surface so that the kinetic energy of electrons is transferred to work producing intense heating.
Also provides faster and good quality works than conventional methods. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Electron beam melting ebm is one of the latest am techniques using a computercontrolled electron gun to create fully dense 3d objects directly from metal powder. Laser beam machining lbm is one of the advanced machining processes which are used for shaping almost whole range of engineering materials.
Electron beam machining ebm is a thermal machining process in which highvelocity electrons concentrated into a narrow beam are used for instantly heating, melting, or vaporizing the material. This process is used in many applications, including drilling, cutting, annealing, and welding. Introduction emergence of advanced engineering materials, stringent design requirements, and intricate shape and unusual size of work piece restrict the use of conventional machining methods. Electron beam machining free download as powerpoint presentation. Electron beam machining ebm diagram, working, advantages. Electrochemical machining ecm seminar with pdf report. The basic functions of any electron beam gun are to. The electron beam as a tool is the business basis of all company units of global beam technologies ag. Oct 31, 2017 this video gives the working principle of electron beam machining in two minute for best understand. Electron beam machining ebm is a process where highvelocity electrons concentrated into a narrow beam are directed toward the work piece, creating heat and vaporizing the material. Other articles where ion beam machining is discussed. Ebd is a thermal drilling process by which small through holes in the range of 0. In this process, a laser beam of high energy is made to strike on the workpiece, the thermal energy of the laser gets transferred to the surface of the wp workpiece.
Types of ebeam machines scanning systems single beam system multiple beam system. The applications of the electron beam machining technology. This will generate high heat energy and melts and vaporize metal from work piece. Electron beam technology is used worldwide with an increasing tendency. Education is strength in this video we can learn electron beam machining and advantages of electron beam machining, applications of electron beam machining. Electron beam melting and refining ebmr in a vacuum using an intense electron beam is a widely used, ecologicallyfriendly method. The kinetic energy of the electrons, upon striking the workpiece, changes to heat, which vaporizes. Depending upon the intensity of heating the workpiece can melt and vaporize. Apr 08, 2017 electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. The ebm machine uses an electron beam gun to melt metal powder at 70 micron layer thickness, and builds solid details that have homogeneous material structure.
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