See our User Agreement and Privacy Policy. 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. SEMA AŞIK. HISTORY OF EDM In1770s, discovered by Joseph Priestly. 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. 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Electrical Discharge Machining Used on hard metals works with electrically conductive materials 3. 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. 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. National Institute of Technology Rourkela CERTIFICATE This is to certify that the thesis entitled —Parametric 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. The EDM is very complex and stochastic process and is The quality of the product mainly depends upon the material and process parameters. Get Latest Information on Recent Seminar Topics via Email. 1. Int J Adv Manuf Technol 2008 3874 84 DOI 101007s00170 007 1084 y … 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. WHAT IS EDM? You can change your ad preferences anytime. 1. EDM performance measures such as material removal rate, tool wear rate, and surface roughness are influenced by different process parameters [1]. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Electrical Discharge Machining (EDM).ppt. The process of automating one or more EDM machines is similar to that of other conventional machine tools. Clipping is a handy way to collect important slides you want to go back to later. of process parameters. In the process, workpiece is taken as anode and tool is taken as cathode. 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. ELECTRICAL DISCHARGE 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. The two electrodes workpiece and … The process depends upon the tool and workpiece not making actual contact. Process Parameters The process parameters in EDM are mainly related to the waveform characteristics. The best seminar topics are topics that lend themselves to being presented in a seminar-style of presentation. 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. Six process parameters, namely pulse on time, pulse off time, peak current, gap set voltage, wire feed and Wire tension have been considered. Electrical discharge machining. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. 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. 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. EDM parameters namely voltage range, impulse frequency, dielectric fluid pressure, type of flushing and electrode material are the most affecting parameters. If you continue browsing the site, you agree to the use of cookies on this website. Wire Electrical Discharge Machining (WEDM), Electrical Discharge Machining of Ti-6Al-4V, No public clipboards found for this slide. Using a command-line switch doesn't mean you have to type the whole startup command at the command prompt. 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. If you continue browsing the site, you agree to the use of cookies on this website. 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). The percentage contribution of other parameters in decreasing order is Discharge current (17.04%), lift time (2.06%) and pulse off time (0.52%). 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). Looks like you’ve clipped this slide to already. Only sparking is desired in EDM rather than arcing. 11 pages. 1 Electrical Discharge Machining (EDM) GOPINATH.G MECHANICAL. INTRODUCTION The quality of a product is the main factor for showing growth of a company. There are so many parameter affect the performance of Wire EDM. process parameters and optimization of process parameters in EDM process. Machine tool selection, Application, electrical discharge grinding, wire EDM. UFUK OKUMUŞ He noticed in his experiments that electrical discharges had removed material from the electrodes. 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. Three process parameters chosen were Pulse on-time (Ton), Duty factor and Discharge current (or pulse current). The effect of process parameter like Pulse ON time, Pulse OFF time, Voltage, Wire 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. investigated experimentally the effect of various machining parameters on the gap width, SR and the depth of white layer … 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. •Process parameters –Material removal rate –Geometry and surface finish of work material –Wear rate of nozzle •Disadvantages ... –Wire cut Electrical Discharge Machining (WC EDM) Electrical Discharge Machining (EDM) •Principle –Metal is removed by producing powerful electric 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). 1. 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