The pump delivers water to the intensifier at low pressure of. Electron beam machining can be used to accurately cut or bore a wide variety of metals. This process is used in many applications, including drilling, cutting, annealing, and welding. 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. Ebd is a thermal drilling process by which small through holes in the range of 0.
Electronbeam machining ebm ebm equipment equipment is contained in vacuum 104 mm hg or more in order to ensure cutting energy. To focus the electron beams electrostatic or electro magnetic lenses are used. 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. Electron beam machining ebm electron beam machining is a thermal nontraditional process, uses electrical energy to generate thermal energy for removing material.
Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Electron beam machining has been used in industry since the 1960s, initially in nuclear and aerospace welding application. The kinetic energy of the electrons, upon striking the workpiece, changes to heat, which vaporizes read more. Ebm is a highenergybeam machining process electrical energy is used to generate highenergy electrons the mechanism of material removal is primarily by melting and rapid vaporization due to intense heating by the electrons. 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. It is similar to the electron beam welding machine. Kamble assistance professor department of production engineering, d. Nov 26, 2012 diy brick rocket stove cooking without electrical power duration. Electron beam machining electron beam machining drilling. Deflection coil moves the elctron beam along the weld.
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. Experimental investigation and analysis of process parameters in laser beam machining of aluminium alloy 8011 rudramuni khed student department of production engineering, d. This page contains micromachining seminar and ppt with pdf report. Ebm thermal process, similar to lbm materialheating. Report, ppt download mechanical mcq objectives question.
Electron beam machining ebm advantages and disadvantages. Electron beam machining is a process in which highvelocity electrons are concentrated into a narrow beam with a very high planar power density. Seminar on non conventional machining report download abstract nontraditional machining ntm processes are now being widely used to generate intricate and accurate shapes in materials, like titanium, stainless steel, high strength temperature resistant hstr alloys, fiberreinforced composites, ceramics, refractories and other difficulttomachine alloys having higher strength, hardness. Electron beam machining ebm invented in germany in 1952 by dr. Thus the work piece to be machined is located under the electron beam and is kept under vacuum. Electron beam machining ebm is a metal removal process by a high velocity focused stream of electrons. It is a nontraditional machining process in which no physical tool is used. Laser beam machining lbm using long pulses has been used since long by focusing laser beam to a selective portion of material to create a desired feature on or internal to the substrate. This video gives the working principle of electron beam machining in two minute for best understand.
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. All you need to do is just click on the download link and get it. From the annular bias grid, the electron produced by the cathode is attracted towards the anode and gradually its velocity increases. Electron beam machining is the metal removal process by a highvelocity focussed stream of electrons which heats, melts and vaporizes the work material at the point of bombardment the production of free electrons is obtained from thermoelectronic cathodes wherein metals are heated to the temperature at which the electrons gain enough speed for escaping to the space around the cathode. Also explore the seminar topics paper on micromachining with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. Electron beam machining ebm the production of free electrons negatively charged particles are obtained by electron gun. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Seminar on non conventional machining report download. On this channel you can get education and knowledge for general issues and topics.
Advanced manufacturing processes amps electron beam. The beam crosssection is then focused and directed toward the work piece, creating heat and vaporizing the material. Electron beam melting and refining ebmr in a vacuum using an intense electron beam is a widely used, ecologicallyfriendly method. Application of advanced coatings in high performance modern cutting tools and high performance super. Surface finish is better and kerf width is narrower than those for other thermal cutting processes. A wide variety of electron beam machine options are available to you, such as substrate, type. Generally electron beam machining is done in a high vacuum chamber to avoid the unnecessary scattering of the electrons. Laser beam is appropriate for microtechnology due to its high lateral resolution, low heat input, and high flexibility. The highenergy focused electron beam is made to impinge on the.
Drilling requires very close control of the high voltage, the beam current, and the pulse length. 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. Explore micromachining with free download of seminar report and ppt in pdf and doc format. Due to pattern of electrostatic field produced by grid cup, electrons are focused and made to flow in the form of a converging beam through anode. If you liked it then please share it or if you want to ask anything then please hit comment button. Ebm is an alternate additive metal process in comparison to dmls, and is a perfect solution for large parts built using ti6ai4v. This is similar to the way electron beam lithography is used. Cathode, to emit high negative potential electrons. Electronbeam machining ebm is a process where highvelocity electrons concentrated into a narrow beam are directed toward the work piece, creating heat. Module iii 11 hours introduction to surface engineering, high speed machining and grinding. Electron beam machining ebm and laser beam machining lbm are thermal processes considering the mechanisms of material removal.
Ebm can be used for very precise cutting or boring of a wide variety of metals. Micromachining seminar report, ppt, pdf for mechanical. Pdf on electron beam machining electron beam machining ebm and laser beam machining lbm are thermal processes considering the mechanisms of material removal. View and download powerpoint presentations on electron beam machining ppt. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Electron beam machining ebm advantages and disadvantages electron beam machining is a thermal process used for the metal removal during the machining process.
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. View electron beam machining process ppts online, safely and virusfree. Aug 24, 2016 here we are giving you electrochemical machining ecm seminar and ppt with pdf report. An electron gun is basically a triode consisting of. 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 whole vary of materials. A stream of energetic ions ranging in energy from few electron volt ev to several mega electron volts. Live simple, live free tinyhouse prepper recommended for you. Electron beam melting an overview sciencedirect topics. Further, the beam needs to be manoeuvred if required by the gun. Electronbeam machining ebm the ebm technique is used for cutting fine holes and slots in any material. Introduction electron beam machining is one of the examples.
Ebm is a highenergy beam machining process electrical energy is used to generate highenergy electrons the mechanism of material removal is primarily by melting and rapid vaporization due to intense heating by the electrons. Electron source is an electron gun several times the intensity of a tv gun. Electron beam machining working principle, advantage ebm. Depending upon the intensity of heating the workpiece can melt and vaporize. Otherwise the electrons would interact with the air molecules, thus they would lose their energy and cutting ability. Electron beam machining is required to be carried out in vacuum. Depending upon the intensity of heating the work piece can melt and vaporize. A point beam can be steered over the surface under computer control in an arbitrary dose profile. May 31, 2018 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 whole vary of materials. It is used to circulate the water from the storage tank during the machining process.
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 material. Electrochemical machining ecm pdf report free download. In ebm, first the electron is generated by the cathode and an annular biased grid does not allows the electron to diverge. The applications of the electron beam machining technology. Electron beam machining ebm uses a focused beam of highvelocity electrons to remove material. Find powerpoint presentations and slides using the power of, find free presentations research about electron beam machining ppt. This will generate high heat energy and melts and vaporize metal from work piece. Electron beam machining ebm ebm equipment equipment is contained in vacuum 104 mm hg or more in order to ensure cutting energy. Function is to generate, shape and deflect the electron beam to drill or machine the workpiece. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. The cathode is generally made of tungsten or tantalum. Experimental investigation and analysis of process. Mar 17, 2016 electron beam machining ebm is a thermal process. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used.
As the electrons strike the work piece with high velocity, their kinetic energy is transformed into thermal energy which melts and vaporizes the material. Working principle of electron beam machining in the electron beam gun the electric beam is. First introduced in 1952 and ebw introduced in industry in 1959. Electron beam machiningebm free download as powerpoint presentation. A pulsating stream of highspeed electrons produced by a generator is focused by electrostatic and electromagnetic fields to concentrate energy on a very small area of work. 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 thank you capabilities provide holes of diameter in the range of 100. In the electrical beam machining, electrical energy is used to generate the electrons with high energy. Dec 07, 2016 electron beam machining is a kind of machining process by using highvelocity electron beam. Oct 31, 2017 this video gives the working principle of electron beam machining in two minute for best understand. Electrochemical machining ecm seminar with pdf report. Water jet machining working principle, advantages and.
About 5% of these are metal coating machinery, 1% are laser welders, and 1% are spot welders. Electrons accelerated by electric field are then focused into a thin beam in the focusing coil. Experimental investigation and analysis of process parameters. A focused ion beam system can be regarded as composed of three parts.
Laser beam machining main parts, principle, working with application. The electrons strike the work piece and their kinetic energy converts into thermal energy heating the metal so that the edges of work piece are fused and joined together forming a weld after. Electron beam is capable to weld work pieces with thickness from 0. The research situation of the previous various electron beam machining methods and applications was discussed, and the various. Notes on electron beam machining ebm me mechanical. Laser beam machining is a thermal machining process which uses laser beam to produce heat. Electron beam welding process, applications and equipment. Apr 21, 2017 electron beam machining ebm invented in germany in 1952 by dr.
Yunitha ratnadilla tri adhi kusuma 1560tk37951 electron beam machining a. 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. This article provides a description of equipment used for ebm and discusses the process characteristics, applications, advantages, and disadvantages of electron beam drilling. Ptr is an electron beam welding systems manufacturer and contract welding service provider on the leadingedge of electron beam and vacuum welding technology. In a vacuum chamber, a beam of highvelocity electrons is focused on a workpiece. Electron beam welding electron beam welding ebw electron beam welding is a welding process utilizing a heat generated by a beam of high energy electrons. Displaying powerpoint presentation on electron beam machining available to view or download. Electron beam machining by adesh chakravarthy on prezi. Feb 06, 2016 the electron beam traveling at a speed of. In ebm, electrons are accelerated to high velocity as half of the light speed, then it is impinged to. Presentations ppt, key, pdf logging in or signing up. 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 science and materials processing in recent years were introduced in detail. Electron beam machining ebm kcg college of technology.
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