The mechanism of material removal is primarily by melting and rapid vaporisation. The ebm machine uses an electron beam gun to melt metal powder at 70. It can use for machining of both metal and nonmetal. 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. Principle, working, equipments, application, advantages, and. Yunitha ratnadilla tri adhi kusuma 1560tk37951 electron beam machining a. The cathode is generally made of tungsten or tantalum. Each machine can be configured with a wide range of standard and. Electron beam machiningebm electron machining scribd. Electrons hit the workpiece and their kinetic energy is transformed to the thermal energy heating the metal so that the sides of the workpiece can be joined and a weld can be formed after freezing the electron beam. Electron beam machining ebm is a thermal process considered for. This will generate high heat energy and melts and vaporize metal from work piece. Pdf surface roughness characterisation and analysis of.
Introduction electron beam machining is one of the examples. Metode ini mirip dengan laser beam machining hanya saja ebm. Depending upon the intensity of heating the work piece can melt and vaporize. Working principle of electron beam machining in the electron beam gun the electric beam. 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. The electron beam generates the energy needed for high melting capacity and high productivity. Electron beam machining free download as powerpoint presentation. A detailed notes on electron beam machining process, and. The future analysis of laser cutting machines market get pdf. Electron beam machining is a kind of machining process by using highvelocity electron beam. It is similar to the electron beam welding machine. In ebm, first the electron is generated by the cathode and an annular biased grid does not allows the electron to diverge.
A magnetic coil, which functions as a magnetic lens, repels and shapes the electron beam into a converging beam. After passing through the anode, the electron beam is diverging rapidly and traveling at approximately 150000 ms. Other articles where electronbeam machining is discussed. The complete guide to electron beam melting ebm in 3d. Notes on electron beam machining ebm me mechanical. Electron beam machining ebm the ebm technique is used for cutting fine holes and slots in any material. 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. Electronbeam additive manufacturing, or electron beam melting ebm is a type of additive manufacturing, or 3d printing, for metal parts. Electrical discharge machining edm, electron beam machining ebm working in detailed,edm projects pdf. Electron beam welding is a welding process that uses the heat produced by a beam of high energy electrons. The raw material metal powder or wire is placed under a vacuum and fused together from heating by an electron beam.
The nontraditional machining methods include, ultrasonic machining, laser beam machining, water jet machining, abrasive water jet machining, electron beam machining, etc. Ptr is an electron beam welding systems manufacturer and contract welding service provider on the leadingedge of electron beam and vacuum welding technology. Electron beam machining ebm ntm 14 anuniverse 22 anuniverse 22. Electron beam machining ebm advantages and disadvantages electron beam machining is a thermal process used for the metal removal during the machining process. Electrons escapes from the hot surface and a voltage. Depending upon the intensity of heating the workpiece can melt and vaporize. Further, the beam needs to be manoeuvred if required by the gun. The beam is then passed through a variable aperture. In the electrical beam machining, electrical energy is used to generate the electrons with high energy. View and download powerpoint presentations on electron beam machining ppt. Some machining methods rely on electrical phenomenarather than mechanical meansfor cutting and machining workpieces. Sumber energy metode ini adalah kecepatan electron yang tinggi yang mampu menabrak benda kerja dan menimbulkan panas. Electron beam melting ebm is a metal powder bed fusion pbf process in which the heat source is an electron beam. Inside electron beam melting ebm is an innovative technology for manufacturing orthopedic implants and aerospace applications.
Ebm is a highenergybeam machining process electrical energy is used to generate highenergy electrons the. Electron beam melting ebm is part of the powder bed fusion family. Introduction and details about electron beam machining. Electron beam machining ebm advantages and disadvantages. The modular architecture of ebess beamer series addresses various customer requirements. 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 ebm uses a focused beam of highvelocity electrons to remove material.
Pdf on electron beam machining electron beam machining ebm and laser beam machining lbm are thermal processes considering the mechanisms of material removal. It is a nontraditional machining process in which no physical tool is used. Electron beam machining ebm applications, advantages and disadvantages mecholic no comments. Electron beam machining ebm applications, advantages and. Unlike laser powder bed fusion lpbf, it uses, as its name suggests, an electron beam to fuse metal particles and create.
Ppt laser beam machining powerpoint presentation free. 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. Kemudian digunakan di dunia industri sejak tahun 1960an untuk. It is also known as spark machining or spark eroding process. Ebm and lbm are typically used with higher power density to machine materials. 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. A detailed notes on electron beam machining process, and surely helps you. Ppt laser beam machining powerpoint presentation free to download id. On the turning of electron beam melted gammatial with. Electron beam welding process, applications and equipment. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. The ebm process electron beam melting produces components by fusing layers of metal powder with an electron beam in a high vacuum. The ebm technique is used for cutting fine holes and slots in any material. Daya yang digunakan berkisar 50 200 kv untuk kecepatan electron 5080% kecepatan cahaya.
The main points which will come across various competitive exams of electron beam machining process are highlighted in a bolded text so that you can grab the points easily from the given material presented below. The electron beam melting ebm powder bed fusion process involves distributing a layer of powder metal across the build layer and then selectively sintering and melting using an electron beam. Prototipe mesin yang memanfaatkan berkas elektron untuk penghapusan material telah dibuat oleh steigerwald pada tahun 1947. The electron beam machining ebm process begins after the workpiece is placed in the work chamber and a vacuum. Seminar on non conventional machining report download. Electronbeam machining ebm is a process where highvelocity electrons concentrated into a.
Electrical discharge machining edm, electron beam machining ebm working in detailed,edm projects pdf by mohammed shafi november 26, 2018 march 21, 2020 electrical discharge machining edm. 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 welding parts, working, applications with. Ebm does not apply direct force pressure on workpiece, so brittle and fragile material can be machined without the danger of. Nontraditional machining processestypes,explanation,adv. Electron beam machining ebm nontraditional manufacturing. The main points which will come across various competitive exams of electron beam machining. The source of energy in electron beam machining is high velocity electrons, which strikes the surface of the workpiece and generate heat. Here a steam of high speed electrons impinges on the work surface so that the kinetic energy of electrons is transferred to work. Differently from other metal pbf processes, today, ebm is used for mass production. 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. Electron beam machiningebm free download as powerpoint presentation.
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