Electron beam gun provides high velocity electrons over a very small spot size. This beam can be focused by means of a lens on a very small spot in the work piece. Cnc gantry machining 30ton, laser engineering net shaping lens, heat treating both vacuum and air, cnc robot and electron beam welding, combat vehicles less bradley watervliet arsenal ny cannonmortar systems, rotary forge, vertical heat treat, guided boring highcapacity gun drilling, full profiling capability 5axis machining. Laser beams are being used for a variety of industrial applications, including heat treatment, welding, measurement as well as cutting, drilling, slitting, slotting. Explore micromachining with free download of seminar report and ppt in pdf and doc format.
In lbm, surface roughness is one of important response which affects the quality characteristics of product. Control parameters optimization of laser beam machining. Laser beam machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending etc. Download laser beam welding seminar reports, ppt, pdf, laser beam welding seminar topics, abstracts, full documentation, source code. This page contains micromachining seminar and ppt with pdf report. April 8, 2017 december 26, 2018 pankaj mishra 0 comments machining process, manufacturing 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.
When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece. Laser beam machining deals with machining and material processing like heat. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. Electron beam machining process electron beam is generated in an electron beam gun. Aim of the presentation give brief information about electrochemical machining process show the ecms working principles and tools define the advantages and disadvantages brief informations about application areas, economics, products and developments. Download the seminar report for laser beam machining. A detailed notes on electron beam machining process, and surely helps you. 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.
Permission is granted to download and print the materials on this web site for personal, noncommercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all. Laser material interactions a great advantage of laser machining is capability to. Collection of technical seminar topics for mechanical engineering with ppt. This beam can be focused by means of a lens on a very small. Laser radiation will continue as long as energy is applied to the lasing medium. It can travel over great distances or can be focused.
Download laser beam welding seminar reports, abstract, pdf, ppt. Electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. Electro chemical machiningecm hacettepe universitesi. 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.
Laser stands for light amplification by stimulated emission of radiation. G codes initial machining setup and establishing operating conditions n codes specify program line number to executed by the mcu axis codes. Tags energy laser material beam laser energy beam material machining state holes pulse electrons photon gas stimulated fig drilling materials hole lasing heat download this presentation download note the pptpdf document laser beam machining is the property of its rightful owner. Ppt laser beam machining powerpoint presentation free. Applications 1 processing of all kinds of materials like plastic,leather,cork etc.
Principle of laser surface treatment is illustrated in fig. The high frequency of monochromatic light will fall on the surface then heating, melting and vaporizing of the material take place due. Ppt laser beam machining powerpoint presentation, free. Outline of the presentation why ti is so expensive. This page contains laser communications seminar and ppt with pdf report. Technical seminar topics for mechanical engineering with ppt. By controlling the motion and geometry of the workpiece, and laser beam delivery system, lasers can be used for a variety of one, two, and three dimensional machining applications. Laser beam machining full seminar report, abstract and. 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. The partially reflective mirror allows the transmission of a small amount of coherent radiation that we observe as the beam. Laser stands for light amplification by stimulated emission. Laser beam machining lbm is the property of its rightful owner.
Flux core arc welding at present, shielded metal arc welding smaw and gas tungsten arc welding gtaw are the most commonly used welding processes in the fabrication. Some materials are also very difficult or impossible to cut by. Laser beam machining main parts, principle, working with. Contents laser beam machining laser type of laser laser 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. Electron beam machining is required to be carried out in vacuum. If so, share your ppt presentation slides online with. Laser beam machining is a thermal energybased advanced machining process in which material is removed by focusing the laser beam on the work surface at a constant distance to melt and vaporize the unwanted work material. X,y,z used to specify motion of the slide along x, y, z direction feed and speed codes. The aim of this study is to relate the co2 laser cutting parameters namely laser power, cutting speed laser scanning speed. The argon lasers have a long narrow laser cavity, which produces relatively high power tem0,0 beam output with very low divergence typically about 1 milli radian. 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.
Laser beam machining lbm is thermal processes considering the mechanisms of material removal. Scribd is the worlds largest social reading and publishing site. Ppt laser beam machining lbm powerpoint presentation. 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. 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 informations about application areas, economics, products and developments. Is a hazard to the eye or skin from the direct beam, may pose a fire hazard or diffuse reflection hazard, and may also produce laser generated air contaminants lgac. Electron beam machining free download as powerpoint presentation. Herve rigneault in the institut fresnel marseille lab protecting an ultrafast coherent micra from dust with a shoes cover on his head. Parametric analysis of cutting parameters for laser beam. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used. Laser beam machining lbm is one of the advanced machining processes which are used for shaping almost whole range of engineering materials.
The machining medium is solid grains suspended in an abrasive slurry in the former,while a fluid is employed in the wjm process. Electron beam machiningebm free download as powerpoint presentation. Laser beam machining an overview sciencedirect topics. Electron beam machining ebm and laser beam machining lbm are thermal processes considering the mechanisms of material removal. Water jet cutting a technology on the rise october 2010 page 1 foreword. 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. Otherwise the electrons would interact with the air molecules, thus they would loose their energy and cutting. Laser machining another major area of laser applications in the manufacturing processes is the laser machining. Download full technical seminar topics for mechanical engineering with ppt in doc, pdf or ppt format. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram.
Laser beam machining an introduction laser stands for light amplification by stimulated emission of radiation. Tags energy laser material beam laser energy beam material machining state holes pulse electrons photon gas stimulated fig drilling materials hole lasing heat download this presentation download note the ppt pdf document laser beam machining is the property of its rightful owner. The main advantages of laser beam machining are ease of automation for complex cutting patterns, absence of tool wear and. 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. Laser beam machining is a thermal machining process which uses laser beam to produce heat. Jan 06, 2015 electron beam machining process electron beam is generated in an electron beam gun. Laser beam machining free download as powerpoint presentation. 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. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Light from a laser typically has very low divergence. This concentrated energy in a laser pulse is more powerful than the naturalstrength energy that comes from a continuouswave laser. Laser beam machining latst authorstream presentation. In this research work, the effect of process parameters such as cutting speed. Apr 08, 2017 how electron beam machining process works.
Ramesh singh process mechanisms the beam is traversed over a programmed path and material removal occurs due to multiple mechanisms melting material exhibiting molten phase of low viscosity, notably metals and alloys, and thermoplastics, are cut by the heating action of a beam of. 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. This will generate high heat energy and melts and vaporize metal from work piece. This process uses thermal energy to remove material from metallic or nonmetallic surfaces. The overall efficiency of the argon laser varies from about 0. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. When a mass of energy from a light source xenon flash lamp is made to fall on this medium ruby crystal rod, it when a mass of energy from a light source xenon flash lamp is made to fall on this medium ruby crystal rod, it. Cnc as it is now known, allows part machining programs to be edited and stored in the computer memory as well as permitting diagnostics and quality control functions during the actual machining.
This slide contains the working process of laser, their types and how they are used. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Laser beam can very easily be focused using optical lenses as their wavelength ranges from half micron to around 70 microns. Ppt on machining and thermal cutting process powerpoint. Laser beam machining lbm is a nontraditional subtractive manufacturing process, a form of machining, in which a laser is directed towards the work piece for. Download laser communications complete documentation with ppt and pdf for free. Electron beam machining has been used in industry since the 1960s, initially in nuclear and aerospace. Laser beam machining lbm kcg college of technology. The light produced is a coherent, monochromatic and collimated beam which can be focused to small spots of diameter of 0. The purpose of this brochure is to give the reader a rough overview of waterjet cutting. The introduction of abrasives to the fluid jet enhances the.
Download presentation note the pptpdf document laser beam machining is the property of its rightful owner. Download presentation note the ppt pdf document laser beam machining is the property of its rightful owner. All cnc machining begins with a part program, which is a sequential instructions or coded commands that direct the specific machine functions. Some materials are also very difficult or impossible to.
Laser beam machining lbm, response surface methodology rsm, genetic algorithm ga, optimization. In this process, a laser beam is focused for melting and vaporizing to. In addition to precise cutting of various materials as presented, many special applications i. Laser beam machining process uses highly coherent light source. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes.
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. If two laser beams are used simultaneously then there is the possibility of controlling the weld pool geometry and the weld bead shape using two electron beams, the keyhole could be stabilized causing fewer waves on the weld pool and giving a better penetration and bead shape. Micromachining seminar report, ppt, pdf for mechanical. 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. Ppt laser beam machining powerpoint presentation free to. 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. A bbsr laser beam machining an introduction laser stands for light amplification by stimulated emission of radiation. Ppt laser beam machining lbm powerpoint presentation free. Geometric dimensioning and tolerance ppt five powerpoint presentations. Laser beam machining full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Laser safety training programs shall provide a thorough.
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