Parametric analysis of cutting parameters for laser beam. Laser power, spot diameter of the laser beam, cutting speed, feed rate and depth of cut. In lbm, surface roughness is one of important response which affects the quality characteristics of product. 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. Working principle the laser beam is focused onto the work piece and can be moved relative to it. Here today we are going to study definition, working process, principle, advantages, disadvantages, and application note. Depending on workpiece material and the condition of the tool, unit powerrequirements in machining range between 0. The high frequency of monochromatic light will fall on the surface then heating, melting and vaporizing of the material take place due. Review on laser beam machining process parameter optimization. You can use this simple laser style touch to decorate your presentations in powerpoint and add some basic laser design effect. One example is the laser beam machining lbm which we discuss in this paper. 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.
The results of two sample paired tests also demonstrate its superiority over the other. Laser beam machining latst authorstream presentation. It is similar to the electron beam welding machine. However, the thermal effect of the laser machining process may reduce surface quality and accordingly the fatigue strength due to the generated haz, which deteriorates the performance of micromachined components. 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. Find powerpoint presentations and slides using the power of, find free presentations research about ultrasonic machining ppt. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. 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 cutters use a thin, focused laser beam to pierce and cut through materials to cut out patterns and. It is a nontraditional machining process in which no physical tool is used. Process mechanisms the beam is traversed over a programmed path and material. Download the seminar report for laser beam machining. Nontraditional machining mechanical engineering, iitb. In ibm a stream of charged atoms ions of an inert gas, such as argon, is accelerated in a vacuum by high energies and directed toward a solid workpiece.
We have tested a wide variety of different materials including acrylic and wood from 35 mm, and have provided the appropriate graphic templates for download for you on a select few. Nowadays, laser is also finding application in regenerative machining or. A co2 laser is one of the more powerful types of laser used in laser beam machining. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. Laser is light amplified stimulated emission of radiation. Laser beam machining lbm, surface roughness, response surface methodology.
Find powerpoint presentations and slides using the power of, find free presentations research about laser beam machining ppt. The laser beam machining lbm process is a noncontact process that melts and vaporizes material from the parent material 8. In ebm, electrons are accelerated to high velocity as half of the light speed, then it is impinged to. Laser beam machining full seminar report, abstract and. Control parameters optimization of laser beam machining using. View and download powerpoint presentations on laser beam machining ppt. Laser beam machining process uses highly coherent light source. At the bottom of the articles you can easily download pdf. A laser cutter is a prototyping and manufacturing tool used primarily by engineers, designers, and artists to cut and etch into flat material. In this process, a laser beam is focused for melting and vaporizing to. Turning a machining process in which a singlepoint tool remove material from.
What happens if you focus a 5w laser with a giant magnifying glass. Current research and development in laser beam machining lbm. 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. Other articles where ion beam machining is discussed. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Electron beam gun provides high velocity electrons over a very small spot size.
Aug 02, 2015 what happens if you focus a 5w laser with a giant magnifying glass. The laser machining process is controlled by switching the laser on and off, changing the laser pulse energy and other laser. Wjm can be used to cut softer materials like plastic, rubber or wood. Electron beam machining is required to be carried out in vacuum. Laser beam machining is a thermal machining process which uses laser beam to produce heat. Introduction the plasma arc machining process was introduced to the industries in 1964 as a method of bringing better control to the arc welding process in lower current ranges. During this machining process, a small portion of metals is also eroded away, leaving a small cater. The laser cutting machines initially casts laser beam on the surface of work piece, melts.
A machining process is called nontraditional if its material removal mechanism is basically different than those in the traditional processes, i. Otherwise the electrons would interact with the air molecules, thus they would loose their energy and cutting. In order to cut harder materials like metals or granite, an abrasive material is mixed in the water. A continuous cut is produced by moving the laser beam or workpiece under cnc control. View and download powerpoint presentations on ultrasonic machining ppt. A laser is a device that emits light through a process of optical amplification based on stimulated emission of electromagnetic radiation. Situations where traditional machining processes are unsatisfactory. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. This will generate high heat energy and melts and vaporize metal from work piece.
Micromachining seminar report, ppt, pdf for mechanical. Laser beam machining full seminar reports, pdf seminar abstract, ppt. Ppt laser beam machining powerpoint presentation free. 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 powerpoint template is a free laser design template for presentations with a laser effect in the slide design. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam impinges on work piece. Electrolysis is based on faraday laws of electrolysis which is stated as. Laser cutting machine market is up to mark and still in process of developing summary of the report. A free powerpoint ppt presentation displayed as a flash slide show on id. There are different jet or beam processes, namely abrasive jet, water jet etc. Non traditional machining ntm processes are characterised as follows.
Scribd is the worlds largest social reading and publishing site. Electrochemical machining ecm is a nontraditional machining process uses the principle of faraday to remove metal from the workpiece. Liquidassisted laser beam machining lalbm process is used as an alternative to existing laser beam machining lbm process to address the problems associated with the extreme heat of the laser. A typical nonconventional process is the machining of. Applying various laser micromachining methods utilizing optimal parameters for each material can effectively control such barriers.
The beam removes atoms from the workpiece by transferring energy and momentum to. Advanced machining processes and nanofabrication chapter 26 introduction chemical machining electro chemical machining electrical discharge machining wire edm laser. 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. This concentrated energy in a laser pulse is more powerful than the naturalstrength energy that comes from a continuouswave laser. The values of surface roughness for mild steel were calculated using model equations and boxbehnken design of response surface methodology rsm is used to parametric analysis.
Laser beam machining main parts, principle, working with. This process uses thermal energy to remove material from metallic or nonmetallic surfaces. Laser stands for light amplification by stimulated emission of radiation. Laser machining is characterized by a number of advantages such as the absence of tool wear, tool breakage, chatter, machine deflection, and mechanically induced material damage, phenomena that are usually associated with traditional machining processes. Laser cutting machine is a machine which uses laser beam to cut materials such as acrylic, plastic, wood, fabric, and many other nonmetallic materials. Laser beam machining lbm uses light energy from a laser device for material removal by vaporization and ablation. View electron beam machining process ppts online, safely and virusfree. Pattern creation, modelling, individualised or personalised products and design articles are becoming increasingly important and demand utmost flexibility in production.
Ion beam machining machine tool technology britannica. Laser cutting is able to cut faster and with a higher quality then competing processes. Electron beam machining free download as powerpoint presentation. Ppt advanced machining processes and nanofabrication. A free powerpoint ppt presentation displayed as a flash slide show on. 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. Ppt laser beam machining lbm powerpoint presentation free. View and download powerpoint presentations on chemical machining ppt.
When this high velocity electron strikes the workpiece, it melts and vaporizes the material from the workpiece. Ppt machining processes used to powerpoint presentation. Plasmaarc machining pam employs a highvelocity jet of high temperature gas to melt and displace material in its path. Cutting technique for bending applications tips trotec laser. Laser beam machining process lbm in hindi out of the. Edm machining process is also known as spark erosion machining. 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.
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. Laser beam machining lbm powerpoint ppt presentation. A detailed notes on electron beam machining process. The types of lasers used in lbm are carbon dioxide gas lasers and solidstate lasers. 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. Find powerpoint presentations and slides using the power of, find free presentations research about chemical machining ppt. The main operating parameters associated with laser assisted machining are. Laser beam machining lbm, response surface methodology rsm, genetic algorithm ga, optimization. On this channel you can get education and knowledge for general issues and topics. Laser beam machining lbm has proven its applications and advantages over almost all the range of engineering materials. Download this books into available format 2019 update. This beam can be focused by means of a lens on a very small spot in the work piece. 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.
View electron beam machining ppts online, safely and virusfree. Ppt laser beam machining powerpoint presentation, free. 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 machining ebm and laser beam machining lbm are. School of industrial engineering, purdue university. In the production process, although it has a high strength and a good degree of. This slide contains the working process of laser, their types and how they are used. 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.
Jan 06, 2015 electron beam machining process electron beam is generated in an electron beam gun. Laser beam machining lbm laser beam machining is a thermal materialremoval process that utilizes a high. A coaxial gas jet is used to eject the molten material and create a kerf. Dec 07, 2016 electronbeam machining is a kind of machining process by using highvelocity electron beam. The tool uses mirrors that direct the proton laser beam to the desired cutting location. The laser heats a small volume of the surface causing it. Research parameters optimization of laser beam machine as laser beam machine, cutting speed power, gas pressure, laser power.
Thanks for watching our video like, comment, share and subscribe if you find this video useful. Electron beam machining is process in which high velocity electrons are concentrated in a narrow beam and then directed towards the workpiece for machining. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Laser beam machining an overview sciencedirect topics. Give us feedback to let us know how useful is our videos. Nontraditional manufacturing processes nontraditional manufacturing processes is defined. 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. An important application for paper, cardboard and paperboard are the advertising and packaging industries as well as the arts and crafts. 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. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Laser beam machining is a nonconventional machining method. Laser cutting is mainly a thermal process in which a focused laser beam is used to melt material in a localised area.
By laser processing bending cut geometries or kerf cut, sheet materials that are rigid such as acrylic and wood can be bent. These lasers can generate 400 to 1,500 watts of power, which can cut through 1inch 2. Ppt laser cutting machine powerpoint presentation free to. It offers its competences from macro machining to micro and nano machining of simpletocomplex shapes. Explore micromachining with free download of seminar report and ppt in pdf and doc format.
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. Dec 08, 2017 thanks for watching our video like, comment, share and subscribe if you find this video useful. Laser beam machining, laser cutting, heat affected zones, kerf width, assist gas. Ppt laser beam machining lbm powerpoint presentation. Laser micromachining an overview sciencedirect topics. Applications 1 processing of all kinds of materials like plastic,leather,cork etc. Water jet machining working principle, advantages and. Yag laser beam machining lbm process has a great potential to. This process is generally used for the highprecision manufacture of. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram.
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