Apr 14, 2020 a co2 laser is one of the more powerful types of laser used in laser beam machining. Explore micromachining with free download of seminar report and ppt in pdf and doc format. The light produced is a coherent, monochromatic and collimated beam which can be focused to small spots of diameter of 0. Laser beam machining is the machining processes involving a laser. Pdf a laser beam machining lbm database for the cutting. Lms is easy to learn and requires no specific skills to use it. This beam can be focused by means of a lens on a very small. Current research and development in laser beam machining lbm. Features of co2 laser marking machine 2 signvec international pte ltd signvec technology provides a wide range of laser and rotary engraving, laser cutting and marking high end machines for those requiring high precision and accurate end products. Laser beam machining or more broadly laser material processing deals with machining and material processing like heat treatment, alloying, cladding, sheet metal bending. Otherwise the electrons would interact with the air molecules, thus they would loose their energy and cutting. A laser device excites the atoms in a lasing medium. Laser beam machining free download as powerpoint presentation.
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 processes can include laser drilling, cutting, grooving, writing, scribing, ablation, welding, cladding, milling, and so on. Laser beam machining lbm ppt video online download. Laser stands for light amplification by stimulated emission of radiation. Introduction emergence of advanced engineering materials, stringent design requirements, and intricate shape and unusual size of work piece restrict the use of conventional machining methods. At the bottom of the articles you can easily download pdf. Control parameters optimization of laser beam machining using. Laser micromachining seminar ppt linkedin slideshare. Applications 1 processing of all kinds of materials like plastic,leather,cork etc. Aug 02, 2015 amazing high speed metal laser cutting machine working. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. The machining results of laser cutting depend on both machining process parameters and laser parameters. Laser beam machining lbm kcg college of technology.
Introduction, equipment of lbm mechanism of metal removal, lbm parameters, process characteristics, applications. Download the seminar report for laser beam machining. Laser beam machining lbm prepared by, vaishali desai yaminiba chudasama m. The heat induces the tensile stress and the stress concentration increases at the groove tip. Ppt laser beam machining powerpoint presentation, free. These lasers can generate 400 to 1,500 watts of power, which can cut through 1inch 2. The laser beam is a column of very high intensity light, of a single wavelength, or color. This page contains micromachining seminar and ppt with pdf report. Here today we are going to study definition, working process, principle, advantages, disadvantages, and application note. 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 is a thermal machining process which uses laser beam to produce heat. Electron beam machining can machine metallic as well as nonmetallic workpiece. The main operating parameters associated with laser assisted machining are.
Recent years have seen a substantial growth in the use of advanced materials to obtain improved properties such as high hardness, thermal stability, and wear resistance, which are required to meet the stringent specifications of modern products. The tool uses mirrors that direct the proton laser beam to the desired cutting location. Nov 10, 2012 a laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation. Laser beam machining lbm laser assisted machining lam ablation rate underwater laser ablation uwla material removal mechanism microchannels the original version of this chapter was revised. Laser beam machining main parts, principle, working with. Of difficulttomachine materials smit mistry 141030011021. In the case of a typical co2 laser, that wavelength is in the infrared part of.
An ebook reader can be a software application for use on a computer. Laser beam machining how is laser beam machining abbreviated. Laser power, spot diameter of the laser beam, cutting speed, feed rate and depth of. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Laser beam machining is a nonconventional machining method.
Laser beam is appropriate for microtechnology due to its high lateral resolution, low heat input, and high flexibility. Laser machining software is an allinone solution to control your laser machining system. Generally, an ebook can be downloaded in five minutes or less. Laser beam machining, laser beam hybrid machining, and micro. Electron beam gun provides high velocity electrons over a very small spot size. Electron beam machining is required to be carried out in vacuum. A laser beam machining lbm database for the cutting of ceramic tile article pdf available in journal of materials processing technology 84. Laser beam machining lbm, response surface methodology rsm, genetic algorithm ga, optimization. Laser beam delivery micromachining laser workstation laser. In fact, its a subtractive manufacturing process in which a laser beam is used for cutting through the metals and other materials for getting the desired product. Often, these beams are within the visible spectrum of light. Lbm uses the light energy focused coherent beam of monochromatic light. Nontraditional manufacturing processes nontraditional manufacturing processes is defined as a group of processes that remove excess material by various. A focused beam is shifted laterally by rotating mirror or window to cover wider.
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. Laser beam machining deals with machining and material processing like. Lect 36 unconventional machining process abrasive jet. Lbm uses the light energy focused coherent beam of monochromatic. Laser beam machining lbm is a nonconventional machining process, which broadly refers to the process of material removal, accomplished through the interactions between the laser and target materials. A laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation. Laser beams are being used for a variety of industrial applications.
Laser beam machining latst authorstream presentation. Laser beam machining an introduction laser stands for light amplification by stimulated emission of radiation. View selective laser melting ppts online, safely and virusfree. In this process, a laser beam is focused for melting and vaporizing to. 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. Laser beam machining process uses highly coherent light source. The adaptability of laser beam machining allows them to perform more than one function, and the wide range of industries that often use laser beam machining technology includes automakers and jewelers. Parametric analysis of cutting parameters for laser beam. This process uses thermal energy to remove material from metallic or nonmetallic surfaces.
The mlws1200 micromachining laser workstation is a modular benchtop cnc system which can be equipped with any laser source. Micromachining seminar report, ppt, pdf for mechanical. View electron beam machining process ppts online, safely and virusfree. The beam can be projected through a transparent window. 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 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. The electrons of these atoms move to a higher orbit, then release photons, creating a laser beam. Electron beam machining is a nonconventional machining process or nontraditional process.
Laser beam machining lbm, surface roughness, response surface methodology. 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. 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. Electron beam machining process electron beam is generated in an electron beam gun. Micromachining laser workstation system mlws1200 micromachining laser workstation system. Scribd is the worlds largest social reading and publishing site. Ppt laser beam machining lbm powerpoint presentation. Working principle the laser beam is focused onto the work piece and can be moved relative to it. Laser beam machining lbm using long pulses has been used since long by focusing laser beam to a selective portion of material to create a desired feature on or internal to the substrate. Lecture notes on modern manufacturing process dr pramod. Review on laser beam machining process parameter optimization. The high frequency of monochromatic light will fall on the surface then heating, melting and vaporizing of the material take place due. 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.
This concentrated energy in a laser pulse is more powerful than the naturalstrength energy that comes from a continuouswave laser. Find powerpoint presentations and slides using the power of, find free presentations research about laser beam machining ppt. An ebook reader can be a software application for use on a computer such as. Ppt laser beam machining powerpoint presentation free. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. Current research and development in laser beam machining \lbm\. 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. A laser machine consists of the laser, mirrors for. View and download powerpoint presentations on laser beam machining ppt.
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