Light from a laser typically has very low divergence. The process is different from electric discharge, electron beam, laser and plasma arc machining in that the process does not. It is similar to the electron beam welding machine. View and download powerpoint presentations on chemical machining ppt. Among thermal removal methods, electrical discharge machining or edm is the oldest and most widely used. View electron beam machining process ppts online, safely and virus free. Ppt laser beam machining powerpoint presentation free.
View and download powerpoint presentations on ultrasonic machining ppt. Find powerpoint presentations and slides using the power of, find free presentations research about chemical machining ppt. Laser beam machining main parts, principle, working with. Laser micromachining 2 process are soaring in the recent days and its potential merits add a significant impact in its application areas.
Its high beam quality, portable installation size, high. Laser beam machining process uses highly coherent light 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. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. A free powerpoint ppt presentation displayed as a flash slide show on. The electrons of these atoms move to a higher orbit, then release photons, creating a laser beam. Laser beam machining process lbm in hindi out of the. Laser beam machining is a thermal machining process which uses laser beam to produce heat. How to simulate laser beam machining process on a composite material. This page contains laser communications seminar and ppt with pdf report. Presentations ppt, key, pdf logging in or signing up. A laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation.
Module 5 laser beam machining senthil1 laser industrial. Production of laser beam and with the use of lasers. Jul 7, 2017 shop online templates, patterns, designs for laser cutting and engraving. View electron beam machining ppts online, safely and virus free. A laser device excites the atoms in a lasing medium. You can add and remove elements or personalize the design. Electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. A laser beam machining lbm database for the cutting of ceramic tile. In contrast to some other processes, laser operates using high energy photons therefore there is not a typical tool as the laser beam directly targets. This beam can be focused by means of a lens on a very small.
Download laser communications complete documentation with ppt and pdf for free. A free powerpoint ppt presentation displayed as a flash slide show on id. Ppt laser beam machining lbm powerpoint presentation free. Laser beam machining lbm is a non conventional machining manufacturing process, a form. Laser beam machining lbm kcg college of technology.
Laser beam machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending etc. Find powerpoint presentations and slides using the power of, find free presentations research about electrical discharge machining ppt. This page contains micromachining seminar and ppt with pdf report. Electronbeam ebm and laser beam machining lbm are newer. The adobe flash plugin is needed to view this content. Dec 07, 2016 electron beam machining is a kind of machining process by using highvelocity electron beam. Nov 10, 2012 laser welding process when overlaying with a laser an optical arrangement is used to focus the laser beam on the work piece and heat it.
A laser machine consists of the laser, mirrors for. The focused beam in vaporization cutting first heats up the. 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. Often, these beams are within the visible spectrum of light. Otherwise the electrons would interact with the air molecules, thus they would loose their energy and cutting. Download the seminar report for laser beam machining. Apr 21, 2015 lbm is nontraditional thermal process. Ppt laser beam machining powerpoint presentation, free.
In ebm, electrons are accelerated to high velocity as half of the light speed, then it is impinged to. Simultaneously hardfacing material in the form of powder is introduced into the laser beam and melted. May 02, 2017 laser beam machining main parts, principle, working with application may 2, 2017 december 26, 2018 pankaj mishra 2 comments manufacturing processes laser beam machining lbm is a form of machining process in which laser beam is used for the machining of metallic and nonmetallic materials. Electron beam gun provides high velocity electrons over a very small spot size. Introduction ucsb laser safety manual 2 safety precautions for class 3 and 4 lasers class 3 eye and specular reflection hazard never aim the laser at a persons eye or stare at the laser from within the beam. Free laser cut templates, download laser cutting designs. In this video we have explained working of laser beam machining process, we. At the bottom of the articles you can easily download pdf. Find powerpoint presentations and slides using the power of, find free presentations research about laser beam machining ppt. One of the most promising approaches for optimized production processes is the integration of laser beam sources in machine tools for additive manufacturing products. Here today we are going to study definition, working process, principle, advantages, disadvantages, and application note. Drilling small diameter holes is possibledown to 0.
Electron beam machining process electron beam is generated in an electron beam gun. Electron beam machining ebm similar to lbm except laser beam is replaced by high velocity electrons. 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. Electron beam machining is required to be carried out in vacuum. Ppt laser beam machining powerpoint presentation free to. Choose from over a million free vectors, clipart graphics, vector art images, design templates, and illustrations created by artists worldwide. Cutting laser cutting is able to cut faster and with a higher quality then competing processes. Conversion of electrical energy into heat energy to emit laser beam.
Ppt laser beam machining lbm powerpoint presentation free to download id. Laser beam machining lbm prepared by, vaishali desai yaminiba chudasama m. Dec 08, 2017 thanks for watching our video like, comment, share and subscribe if you find this video useful. Jan 06, 2015 electron beam machining process electron beam is generated in an electron beam gun. Working principle the laser beam is focused onto the work piece and can be moved relative to it. Crack free cutting can be obtained by preheating the workpiece above a temperature of 1. Laser beam machining free download as powerpoint presentation. 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. Remove this presentation flag as inappropriate i dont like this i like this remember as a favorite.
View and download powerpoint presentations on electrical discharge machining ppt. Electron beam machining ebm and laser beam machining lbm are. 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. A summary of laser machining applications in several industries is tabulated in table 25. In thermal removing processes, thermal energy, provided by a heat source, melts or vaporizes the volume of the material to be removed.
Ppt laser beam machining lbm powerpoint presentation. 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. The focused laser beam is directed at the material, which then either melts. View and download powerpoint presentations on electron beam machining ppt. Find powerpoint presentations and slides using the power of, find free presentations research about plasma arc machining ppt.
The laser machining is driven by pyrolitic and photolitic. Lbw is a versatile process, capable of welding carbon steels, hsla steels, stainless steel, aluminum. Find powerpoint presentations and slides using the power of, find free presentations research about ultrasonic machining ppt. View and download powerpoint presentations on laser beam machining ppt. Laser machining, however, due to its noncontact nature, can be used to create such holes through melt ejection and vaporization as a result of focusing the laser beam on the surface of the material 33. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer this is used solely as a reading device such as nuvomedias rocket ebook. Laser cutting is a technology that uses a laser to slice materials. Give us feedback to let us know how useful is our videos. School of industrial engineering, purdue university. The tophat beam profile of laserlines diode lasers creates very even molten pools and allows for a calm process control that leads to homogeneous, crack free material layers. When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece. 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. Hello everyone welcome to engineers academy topics covered.
Pdf a laser beam machining lbm database for the cutting. Laser beam machining full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Used for very accurate cutting of a wide variety of metals. How to simulate laser beam machining process on a composite.
Such processing is carried out utilizing the energy of coherent photons or laser beam, which is mostly converted into thermal energy upon. Laser beam machining an overview sciencedirect topics. Generally, an ebook can be downloaded in five minutes or less. Laser machining production engineering i meng 3221. Apr 21, 2017 laser material interactions a great advantage of laser machining is capability to machine any kind of material, not necessarily conductive, depending on laser intensity and interaction time. Find powerpoint presentations and slides using the power of, find free presentations research about electron beam machining ppt. Ion beam machining or etching is generally a surface finishing process in which the material removal takes place by sputtering of ions. 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. Such processing is carried out utilizing the energy of coherent photons or laser beam. This process uses thermal energy to remove material from metallic or nonmetallic surfaces.
Mechanical machining is not possible since it could greatly affect this surface. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Scribd is the worlds largest social reading and publishing site. Module 5 laser beam machining senthil1 free download as powerpoint presentation.
In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. Laser beam machining is a nonconventional machining method. It can travel over great distances or can be focused to a very small spot with a brightness which. Laser beam is focused over a particular area on workpiece which creates high intensified concentration on work piece because of which the work piece melts, thus giving the required shape. Electron beam machining is a kind of machining process by using highvelocity electron beam. Laser beams are being used for a variety of industrial applications, including heat treatment, welding, measurement as well as cutting, drilling, slitting, slotting. Laser machining process an overview sciencedirect topics. Laser beam machining full seminar report, abstract and.
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