Study of electron generation in electron beam machining ebm. The process parameters, which directly affect the machining characteristics in electron beam machining, are. Tial tnbv5 compared to a casted form of this alloy. Intelligent knowledge based system for material processing by. At the bottom of the articles you can easily download pdf. The correct selection of the nontraditional machining methods must be based on the following aspects. Liquid gaseous granular thermal gaseous electrical liquid energy beam gaseous or vacuum laser beam machining electron beam machining ion beam machining tool machining. Research scholar, department of production engineering, kits college of engineering, shivaji. Laser beam machining an overview sciencedirect topics.
Lbm can be used to process these materials with intricate shapes and. 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. Electron beam welding is widely considered one of the best welding methods in manufacturing. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. The variation of the process parameters has a distinct and complex influence on the electron beam machining process products. Find powerpoint presentations and slides using the power of, find free presentations research about electron beam machining ppt. View and download powerpoint presentations on electron beam machining ppt. Depending upon the intensity of heating the work piece can melt and vaporize.
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. Ebm process parameters process parameters which directly affect the machining. Control parameters optimization of laser beam machining. Electron beam welding process, applications and equipment. Download seminar report on the topic laser beam machining lbm. Electron beam machining ebm uses a focused beam of highvelocity electrons to remove material. Kamble assistance professor department of production engineering, d. Ebm international journal of advanced engineering and technology. Thermal energy processes electron beam machining uses a highvelocity stream of electrons capable to remove any material eb gun accelerates a continuous stream of electrons to about 75% of light speed. Ebm machine, and ebm process database which hold ebm machine parameters. Electron beam machining free download as powerpoint presentation. Electron beam machining has been used in industry since the 1960s, initially in.
Lecture notes on modern manufacturing process dr pramod. Electron beam machining ebm invented in germany in 1952 by dr. Investigation of effect of laser beam machining lbm. Laser beam machining is a thermal machining process which uses laser beam to produce heat. Therefore, this article deals with research on electrochemical machining of electron beam melted. In lbm, there are many factors such as beam parameters. Electron beam machining ebm electron beam machining is a thermal nontraditional process, uses electrical energy to generate thermal energy for removing material. Ebm can be used for very precise cutting or boring of a wide variety of metals. Electron beam machining market size, share, and industry. 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 influence of the process parameter for each mode on the dimensions and shape of the machining.
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. Ebm electron beam machining lbm laser beam machining 6. Electron beam gun provides high velocity electrons over a very small spot size. A detailed notes on electron beam machining process. Seminar on non conventional machining report download. There is no case of micromachining in conventional machining methods and that has been fed up with the unconventional machining methodsadvanced manufacturing methods because of the following. Get the pdf seminar report paper explaining the principle of laser beam machining, experimental studies, applications, and major areas of lbm research. Figure 10 main effects plots for the percentage of porosity versus select electron beam welding parameters. Electron beam machining ebm uses a focused beam of highvelocity electrons to.
Electron beam machining drilling was first introduced in 1952. Introduction, equipment of lbm mechanism of metal removal, lbm parameters, process characteristics, applications. Investigation of effect of laser beam machining lbm process parameters on performance characteristics of stainless steel ss 304 mr. Electron beam machining is required to be carried out in vacuum. The state of the art in the electron beam manufacturing processes.
Principles equipment types beam control techniques applications. It is a nontraditional machining process in which no physical tool is used. Pdf the paper focuses on laser beam machining lbm of insitu synthesized. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. The beam pattern and shim thickness provided greater impact. Download machining process pdf at the end of the article. Experimental investigation and analysis of process. Effect of processing parameters of electron beam melting. Nontraditional processes ntp nontraditional cutting. But electrochemical machining results are highly dependent on the microstructure of the material regarding the surface roughness. Laser beam machining lbm is an excellent material processing technique to machine a wide range of advanced materials, especially difficulttomachine advanced ceramics and composites. Effects of select parameters on electron beam welding of al6061t6 alloy by. Electron beam machining process electron beam is generated in an electron beam gun.
Laser beam machining is a nonconventional machining method. Ebw process for this common aerospace material and joint geometry and will help determine. Electrochemical machining ecm seminar with pdf report. Electron beam machining market size research report, identifies new revenue opportunity in electron beam machining. When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece. The systemic models for the electronsmaterial interaction allow establishing the main parameters for each application accelerating voltage, focus current, processing speed etc. Electron beam machiningebm free download as powerpoint presentation. Cutting parameters speed, feed, depth of cut independent variables. This will generate high heat energy and melts and vaporize metal from work piece. So lets start with the definition first, laser beam machining. Optimization and influence of laser machining process parameters on surface roughness. Pdf optimization and analysis of laser beam machining.
The influence of the input parameter in case of electron. 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. The power needed to operate the ecm is obviously electrical. As with any modern machine tool, all process parameters can be stored by their respective part numbers and retrieved at a later date. Request pdf study of electron generation in electron beam machining. The values of process parameters are determined to yield the desired product quality and also to maximize the process performances. The state of the art in the electron beam manufacturing. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. 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. View electron beam machining process ppts online, safely and virusfree. This process is used in many applications, including drilling, cutting, annealing, and welding. Experimental investigation and analysis of process parameters in laser beam machining of aluminium alloy 8011 rudramuni khed student department of production engineering, d. Pdf the paper focuses on laser beam machining lbm of insitu synthesized al7075tib2.
Depending upon the intensity of heating the workpiece can melt and vaporize. The accelerating voltage the beam current pulse duration energy per pulse power per pulse lens current spot size power density as has already been mentioned in ebm the gun is. Optimization and influence of laser machining process parameters on surface roughness, volumetric material. The future analysis of laser cutting machines market get pdf sample copy of this report. This paper aims to study the effect of processing parameters of an electron beam melting ebm machine on the surface roughness, critical pitting temperature and density of ti6al4v parts produced from the ebm machine.
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. Parametric analysis of cutting parameters for laser beam. The process of heating by electron beam is used for. One commonality of these electron beam welders is that all beam parameters and all mechanical axes are numerically controlled either by a plc or a cnc. Here today we are going to study definition, working process, principle, advantages, disadvantages, and application. Comparison of the electrochemical machinability of. Electron beam machining ebm and laser beam machining lbm are thermal processes. Control parameters optimization of laser beam machining using genetic algorithm ruben phipon1, b. Electron beam machining has been used in industry since the 1960s, initially in nuclear and aerospace. Abstract to improve and optimize the responses of a laser beam machining process, the various input machining control parameters are to be set at an optimal value.
The report aims at estimating the market size and future growth of the electron beam machining industry based on offering, process, application, vertical, and region. On this channel you can get education and knowledge for general issues and topics. View electron beam machining ppts online, safely and virusfree. 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. Notes on electron beam machining ebm me mechanical. The electron beam polishing equipment technology is brought forward and its characteristic is explained because general processing method cant obtain preferable machining efficiency and product. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. This article provides a description of equipment used for ebm and discusses the process characteristics, applications, advantages, and disadvantages of electron beam drilling. Otherwise the electrons would interact with the air molecules, thus they would loose their energy and cutting. Laser beam machining lbm is one of the most widely used thermal energy based noncontact type advance machining process which can be applied for almost whole range of materials. Surface finish is better and kerf width is narrower than those for other thermal cutting processes. Parameters and process capability although there are many.
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