Electron beam machining has been used in industry since the 1960s, initially in nuclear and aerospace. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. May 31, 2018 download seminar report on the topic laser beam machining lbm. Laser beam machining lbm, state of the art and new.
Water jet machining working principle, advantages and. Introduction laser beam machining lbm is a novel thermal energy based advanced machining process which can be used for machining a wide range of materials. The tool uses mirrors that direct the proton laser beam to the desired cutting location. Wjm can be used to cut softer materials like plastic, rubber or wood. When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece.
Working principle of electron beam machining in the electron beam gun the electric beam is. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used. School of industrial engineering, purdue university. Nov 05, 2014 laser beam machining used light energy from a laser to remove material by vaporization and ablation energy is concentrated optically laser emits either continuous or pulsed light beam 5 source. A laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation. May 04, 2014 this is ppt all about laser beam machining which is a unconventional machining process that can be used even on those materials that cant be machined with conventional processes. Electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. Ppt laser beam machining powerpoint presentation free. Explore micromachining with free download of seminar report and ppt in pdf and doc format. It is similar to the electron beam welding machine.
This process uses thermal energy to remove material from metallic or nonmetallic surfaces. Ppt laser beam machining powerpoint presentation free to. Such processing is carried out utilising the energy of coherent photons or laser beam, which is mostly converted into thermal energy upon interaction with most of the. Often, these beams are within the visible spectrum of light. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. Laser beam machining an overview sciencedirect topics. Laser beam can very easily be focused using optical lenses as their wavelength ranges from half micron to around 70 microns. Laser beam machining lbm has proven its applications and advantages over almost all the range of engineering materials. Technical seminar topics for mechanical engineering with ppt. Ppt laser beam machining powerpoint presentation, free. Laserbeam machining is a thermal materialremoval process that utilizes a highenergy, coherent light beam to melt and vaporize particles on the surface of. 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.
May 20, 2017 water jet machining wjm also called water jet cutting, is a nontraditional machining process in which highvelocity jet of water is used to remove materials from the surface of the workpiece. Laser beam machining lbm is a thermal energy based advanced machining process in which the material is removed by i melting, ii vaporization, and iii chemical degradation chemical bonds are broken which causes the materials to degrade. Unconventional machining lecture 8 laser beam machining lbm. Laser beam machining lbm is a non conventional machining manufacturing process, a form of machining, in which a laser is directed towards the work piece for machining. The electrons of these atoms move to a higher orbit, then release photons, creating a laser beam. In order to cut harder materials like metals or granite, an abrasive material is. The adobe flash plugin is needed to view this content. Control parameters optimization of laser beam machining using. Download the seminar report for laser beam machining. Electron beam machining ebm advantages and disadvantages. Electron beam machiningebm free download as powerpoint presentation. Nov 10, 2012 a laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation. Laser beam machining process the focusing lens takes the beam of light and makes it into a smaler beam turns electrical energy into coherent light.
Parametric analysis of cutting parameters for laser beam. Laser beam machining latst authorstream presentation. In ebm, electrons are accelerated to high velocity as half of the light speed, then it is impinged to. It offers its competences from macro machining to micro and nano machining of simpletocomplex shapes. This concentrated energy in a laser pulse is more powerful than the naturalstrength energy that comes from a continuouswave laser. Additive manufacturing technologies 20 electric discharge machining 439 electroforming 443 electron beam machining 446 electroplating 452 etching 483 eutectic bonding 488 induction heating 692 ion beam machining 717 laser ablation 736 laser beam machining 739 microwave radiation 877 physical vapor deposition pvd. Sharma, department of mechanical engineering, iit roorkee. Electron beam welding process, applications and equipment. A free powerpoint ppt presentation displayed as a flash slide show on id. Find powerpoint presentations and slides using the power of, find free presentations research about electron beam machining ppt.
A laser device excites the atoms in a lasing medium. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Download your full reports for laser beam machining. Ppt laser beam machining lbm powerpoint presentation free to download id. The underline working principle of laser was first put forward by albert einstein in 1917 though the first industrial laser for experimentation was developed around 1960s. Current research and development in laser beam machining \lbm\. Current research and development in laser beam machining. In this process, a laser beam is focused for melting and vaporizing to. This is ppt all about laser beam machining which is a unconventional machining process that can be used even on those materials that cant be machined with conventional processes.
Laser micromachining delivers a range of precision laser processes for laser drilling, micro drilling, micro hole drilling, laser cutting, micro cutting, laser milling, laser micro milling, laser welding and surface treatments that apply to precision micro machining and micro engineering requirements across a wide range of industries. Control parameters optimization of laser beam machining. A co2 laser is one of the more powerful types of laser used in laser beam machining. Weld cross sections of production parts will be shown to demonstrate obtainable weld shapes. Ppt laser beam machining lbm powerpoint presentation free. View electron beam machining process ppts online, safely and virusfree. Ppt laser beam machining lbm powerpoint presentation. This beam can be focused by means of a lens on a very small. Laser beam machining full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest. View and download powerpoint presentations on electron beam machining ppt. Laser beam machining lbm, response surface methodology rsm, genetic algorithm ga, optimization.
Electron beam machining ebm advantages and disadvantages electron beam machining is a thermal process used for the metal removal during the machining process. Laser beam machining full seminar report, abstract and. Ppt laser beam machining powerpoint presentation free to download id. Laser beams are being used for a variety of industrial applications, including heat treatment, welding, measurement as well as cutting, drilling, slitting, slotting.
Laser beam machining lbm kcg college of technology. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Lbm is particularly suitable for making accurately placed holes. Applications 1 processing of all kinds of materials like plastic,leather,cork etc. This page contains micromachining seminar and ppt with pdf report. Hence, it was realize to develop some nonconventional machining methods known as advanced machining processes. 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. Laser beam machining free download as powerpoint presentation. Latest top 345 technical seminar topics for mechanical engineering with ppt. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. The light produced is a coherent, monochromatic and collimated beam which can be focused to small spots of diameter of 0. Current research and development in laser beam machining lbm.
Electronbeam machining is a kind of machining process by using highvelocity electron beam. Collection of technical seminar topics for mechanical engineering with ppt. 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. Machining is the broad term used to describe removal of material from a workpiece includes cutting, abrasive processes grinding, advanced machining processes electrical, chemical, thermal, hydrodynamic, lasers automation began when lathes were introduced in 1700s now have computer numerical control cnc machines. 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. Water jet machining wjm also called water jet cutting, is a nontraditional machining process in which highvelocity jet of water is used to remove materials from the surface of the workpiece. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. Laserbeam machining lbm laserbeam machining is a thermal materialremoval process that utilizes a highenergy, coherent light beam to melt and vaporize particles on the surface of metallic and nonmetallic workpieces. Laser beam machining an introduction laser stands for light amplification by stimulated emission of radiation. It is a nontraditional machining process in which no physical tool is used.
In the electrical beam machining, electrical energy is used to generate the electrons with high energy. Get the pdf seminar report paper explaining the principle of laser beam machining, experimental studies, applications, and major areas of lbm research. Laser beam machining powerpoint presentations mechanical. Laser beam machining process uses highly coherent light source. Laser beam machining is the machining processes involving a laser beam as a heat source. The laser machining process is controlled by switching the laser on and off, changing the laser pulse energy and other laser parameters and by positioning either the work piece or the laser focus. Laser micromachining has been used to produce controllable microsubmicropatterns on silicon wafer that is used to replicate the patterns on polymer surfaces. Unconventional machining lecture 8 laser beam machining.
Major applications of laser beam is in cutting of metals and non metals, soft. Laser micromachining an overview sciencedirect topics. It is a thermal process used to remove materials without. This will generate high heat energy and melts and vaporize metal from work piece. Electron beam machining ebm and laser beam machining lbm are thermal processes considering the mechanisms of material removal. A laser machine consists of the laser, mirrors for. Laser beam machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending etc. This paper provides a technical overview of the unique features of the electron beam welding process including several applications. Lbm is one of the advanced machining processes which are used for shaping almost whole range of engineering materials.
Micromachining seminar report, ppt, pdf for mechanical. These lasers can generate 400 to 1,500 watts of power, which can cut through 1inch 2. Laser beam machining used light energy from a laser to remove material by vaporization and ablation energy is concentrated optically laser emits either continuous or pulsed light beam 5 source. Download full technical seminar topics for mechanical engineering with ppt in doc, pdf or ppt format. Laser beam machining is a thermal machining process which uses laser beam to produce heat.
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