TECHNOLOGY II PRESENTATION Image credit: Pixel B/Shutterstock.com. INTRODUCTION The history of EDM techniques goes as far back as the 1770âs when it was discovered by English scientist, Joseph Priestly. PRESENTATION ON WIRE EDM PPT 2. ⢠INTRODUCTION ⢠HISTORY ⢠DISCUSSION ⢠REFERENCES 3. current as the most important parameters, powder concentration, powder size are found to have relatively weaker impacts on the process design of the high speed EDM. Using a command-line switch doesn't mean you have to type the whole startup command at the command prompt. The abrasive (composition, strength, size and mass flow rate). 1. EDM process suffers from a number of limitations such as higher power consumption, high cost on initial investment and large ï¬oor space. In February 2019, the term 6G suddenly made a buzz around the world when the president of United States, Do... Seminar Topics, Presentation and Reports Download | 2020, Latest Seminar Topics | Reports | Journals | Presentations | 2020, Electric Discharge Machining (EDM) PPT Download. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Researching trending topics i... विद्यार्थियों के लिए प्रेजेंटेशन का महत्व प्रेजेंटेशन (presentation) देना शैक्षणिक पाठ्यक्रम का एक महत्वपूर्ण व्यावहारिक पाठ्यक्रम है, ... IoT Seminar Topics Internet of things is a network of objects mainly supported by electronic devices and electronic components such as se... What is 6G Mobile Technology? SEMA AÅIK. 3. ELECTRICAL DISCHARGE MACHINING (EDM): Introduction, mechanism of metal removal, dielectric fluid, spark generator, EDM tools (electrodes) Electrode feed control, EDM process characteristics: metal removal rate, accuracy, surface finish, Heat Affected Zone. The process of automating one or more EDM machines is similar to that of other conventional machine tools. Int J Adv Manuf Technol 2008 3874 84 DOI 101007s00170 007 1084 y ⦠Winner of the Standing Ovation Award for âBest PowerPoint Templatesâ from Presentations Magazine. Multi objective optimization of EDM process parameters using fuzzy TOPSIS method Abstract: With the increasing demands of high surface finish, development of newer hardest material and machining of complex shape geometries, conventional machining process are now being replaced by non-traditional machining processes. â¢Process parameters âMaterial removal rate âGeometry and surface finish of work material âWear rate of nozzle â¢Disadvantages ... âWire cut Electrical Discharge Machining (WC EDM) Electrical Discharge Machining (EDM) â¢Principle âMetal is removed by producing powerful electric HISTORY OF EDM In1770s, discovered by Joseph Priestly. 11 pages. 1. gap and also on non-electrical parameters like work and tool material, dielectric fluid pressure. You can start the Office app as usual, by clicking the program icon on the desktop, or by clicking the program name on the Start menu. Wire electrical discharge machining (EDM) is a process of metal machining in which a tool discharges thousands of sparks to a metal workpiece. Get Latest Information on Recent Seminar Topics via Email. The favourable EDM process parameters selection is required for obtaining the best machining performance by increasing the production rate at the same time reducing the machining time. All startup methods essentially do the same thing: they run the app's .exe file, even if you don't actually type the command or even see it. Electrical Discharge Machining & Automation. If you continue browsing the site, you agree to the use of cookies on this website. In order to machine high quality micro holes the Posalux EDM machines have a tilting head with deformation by pressure that allows to control the diameter of the hole, resulting in a run-out of the tool electrode. process occurs in wire EDM process. The quality of the product mainly depends upon the material and process parameters. The different process parameters of EDM are shown in the fishbone diagram (figure 2) with output parameters MRR, TWR and Ra. Electric discharge machining (EDM), sometimes colloquially also referred to as spark machining, spark eroding, burning, die sinking or wire erosion, is a manufacturing process whereby a desired shape is obtained using electrical discharges (sparks). INTRODUCTION The quality of a product is the main factor for showing growth of a company. He noticed in his experiments that electrical discharges had removed material from the electrodes. Electrochemical machining (ECM) is a machining process in which electrochemical process is used to remove materials from the workpiece. Since the importance of electrical process parameters in EDM process, gap voltage, discharge current and duty factor have been taken as input parameters with three different types of electrode such as brass, copper and tungsten carbide. Consequently, during the EDM process, the main machining output parameters are the material removal rate (MRR), tool wear ⦠Wire EDM is most progressive non-conventional machining process in mechanical industries. Process Parameters The process parameters in EDM are mainly related to the waveform characteristics. Developed in the mid 1970s In the mid 1980s, the EDM techniques were transferred to a machine tool Today,it is a viable technique that helped shape the metal working industry. In wire electrical discharge machining (WEDM), also known as wire-cut EDM and wire cutting, a thin single-strand metal wire, usually brass, is fed through the workpiece, submerged in a tank of dielectric fluid, typically deionized water. LITERATURE REVIEW Huang et al. If you continue browsing the site, you agree to the use of cookies on this website. Electrical Discharge Machining Used on hard metals works with electrically conductive materials 3. ELECTRICAL DISCHARGE 1. The process depends upon the tool and workpiece not making actual contact. Now customize the name of a clipboard to store your clips. Keywords: Electrical Discharge Machining, Orthogonal Array, Signal-to-Noise ratio, Grey Relational Analysis I. See our User Agreement and Privacy Policy. 1. 1 Electrical Discharge Machining (EDM) GOPINATH.G MECHANICAL. From the review results, it has been observed that the efficacy of the machining process can be improved by electrical process parameters, and only less attention has been given for enhancing such parameters. The effect of process parameter like Pulse ON time, Pulse OFF time, Voltage, Wire Wire-cut EDM is typically used to cut plates as thick as 300mm and to make punches, tools, and dies from hard metals that are difficult to machine with other methods. UFUK OKUMUÅ Wire Electrical Discharge Machining (WEDM), Electrical Discharge Machining of Ti-6Al-4V, No public clipboards found for this slide. Three process parameters chosen were Pulse on-time (Ton), Duty factor and Discharge current (or pulse current). Influence of Process parameters on the Wire EDM process:-- The main goal of WEDM manufacturers and users is to achieve a better stability of the process and higher productivity. Keywords: Wire cut EDM, Process Parameters, Diffusion Annealed, Ra and WWR _____ I. Six process parameters, namely pulse on time, pulse off time, peak current, gap set voltage, wire feed and Wire tension have been considered. EDM performance measures such as material removal rate, tool wear rate, and surface roughness are influenced by different process parameters [1]. Clipping is a handy way to collect important slides you want to go back to later. 2. 6 EDM Process parameters namely pulse on time current and voltage affect the; Technical College of The Lowcountry; MEC 111 - Summer 2018. Abstract. 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The EDM is very complex and stochastic process and is Ultrasonic Machining Process (USM) Ultrasonic Machine and its Process Parameters; Electrical Discharge Machining (EDM) Die-Sinker EDM and its Systems; Wire Cut Electric Discharge Machining (WEDM) Laser Beam Machining (LBM) Equipment of Laser Beam Machining, Process Parameters and Safety Issues; Electrochemical Machining (ECM) of process parameters. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Few of them are investigated in this research paper. Due to this wear, tool loses its dimensions resulting in inaccuracy of the cavities formed on the workpiece. parameters for EDM process. The two electrodes workpiece and ⦠Only sparking is desired in EDM rather than arcing. 2 ï§ Sometimes it is referred to as spark machining, spark eroding, burning, die sinking or wire erosion ï§ Its a manufacturing process whereby a ... 3. Metal disintegration machining Several manufacturers produce EDM machines The ranges of process parameters for ⦠The most important factors affecting the precision and accuracy of the high-speed EDM process have ⦠A non-conventional process, though hardly a new one, wire EDM works on parts resistant to conventional machining processes, but only if these parts are electrically conductive; usually, they are non-ferrous, ⦠The major parameters which control these quantities are: 1. 212ME2297 for the award of the Degree of Master of Technology in Mechanical process parameters and optimization of process parameters in EDM process. Electrical discharge machining (EDM), also known as spark machining, spark eroding, die sinking, wire burning or wire erosion, is a metal fabrication process whereby a desired shape is obtained by using electrical discharges (sparks). Table 1 Working Range of the Process Parameters Process parameters Units Range Current Amps (A) 6-18 Pulse on time (Ton) Micro sec(µ s) 15-35 Pulse off time (Toff ) Micro sec(µ s) 1-9 Voltage Volts (V) 25-45 8520 P Prasanna / Materials Today: Proceedings 4 (2017) 8517ââ¬â8527 2.2. Electrical discharge machining. investigated experimentally the effect of various machining parameters on the gap width, SR and the depth of white layer ⦠Arcing leads to localised material removal at a particular point whereas sparks get distributed all over the tool surface leading to uniformly distributed material removal under the tool. Process Parameters The process characteristics can be evaluated by judging (1) the MRR, (2) the geometry of the cut, (3) the roughness of the surface produced, and (4) the rate of nozzle wear. The percentage contribution of other parameters in decreasing order is Discharge current (17.04%), lift time (2.06%) and pulse off time (0.52%). The Technique for order preference by similarity to ideal solution (TOPSIS) method of optimization is used to analyze the process parameters of the micro-Electrical discharge machining (micro-EDM) of an AISI 304 steel with multi-performance characteristics. National Institute of Technology Rourkela CERTIFICATE This is to certify that the thesis entitled âParametric Optimization of Process Parameters submitted to the National For EDM of Stainless Steel 304 Institute of Technology, Rourkela (Deemed University) by Narendra Kumar Patel Roll No. You can change your ad preferences anytime. There are so many parameter affect the performance of Wire EDM. âGenerally, workpieces are mounted on a pallet system and the automation changes the pallets ⦠The best seminar topics are topics that lend themselves to being presented in a seminar-style of presentation. 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Looks like youâve clipped this slide to already. See our Privacy Policy and User Agreement for details. MATERIALS SCIENCE AND ASENA DENÄ°Z DEMÄ°RCAN Electrical Discharge Machining (EDM).ppt. However it is not suitable for finishing process since the energy generated by the high voltage sub-circuit is too high to obtain a desired fine surface, no matter how short the pulse on time is assigned. Many Wire-EDM machines have adopted the pulse generating circuit using low power for ignition and high power for machining. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. All these electrical and non electrical parameters have a significant effect on the EDM output parameters like, Metal Removal Rate (MRR), Tool Wear Rate (TWR) and Surface Roughness(SR). In the process, workpiece is taken as anode and tool is taken as cathode. Figure 1 shows the schematic diagram of wire EDM machining. Machine tool selection, Application, electrical discharge grinding, wire EDM. EDM parameters namely voltage range, impulse frequency, dielectric fluid pressure, type of flushing and electrode material are the most affecting parameters. electrodes in EDM process. MACHINING The EDM process is most widely used by the mould-making tool and die industries, but is becoming a common method of making prototype and production parts,especially in the aerospace, automobile and electronics industries in which production quantities are relatively low. WHAT IS EDM? In this modern era, it seems like everything is constantly changing and getting better around us. For Machining DOI 101007s00170 007 1084 y ⦠Abstract it seems like everything is constantly changing getting... Presentation on wire EDM, high cost on initial investment and large ï¬oor.. 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