International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 05 | May -2017
p-ISSN: 2395-0072
www.irjet.net
An Overview of Electro Discharge Machining:-A Review Daud B Attar1Unmesh S pawar2 1
M.TECH, MECHANICAL ENGINEERING (CAD/CAM), BVDUCOE, PUNE, MAHARASTRA, INDIA.
2 ASSISTANT
PROFESSOR, MECHANICAL ENGINEERING, BVDUCOE, PUNE, MAHARASTRA, INDIA. ---------------------------------------------------------------------***----------------------------------------------------------------
Abstract- EDM is nothing but the Electrical Discharge Machining is one of the most commonly used NonConventional Machining Method.EDM Process is one of the most commonly used Non-conventional Precise material Removal Process.EDM is a process for shaping hard Metals and Forming Deep Complex Shaped holes by arc erosion in all kinds of electro conductive material. Erosion plus Discharge Occurs in a Small gap between the work piece and the Electrode. This removes the unwanted material from the parent material through melting and vaporizing in presence of Dielectric fluid. The mechanical characteristics of work piece and electrode are not a concerned because the Electric energy is converted into thermal energy causing melting of the material. Hard materials and more complex shapes which can be easily processed by EDM process. The Material removal rate is low but it provides the Highly Surface Fin shined Materials with improved mechanical properties due to thermal effect. In recent years, EDM researcher have explored a number of ways to EDM process parameters such as Electrical Parameters, Non-Electrical Parameter, Tool Electrode based parameter and types of Flushing method used During Experimentation. This new research shares the some objectives of achieving more MRR, Less TWR and Smooth Surface Finish. This Paper Review the Research work completed from the initiation to the development of Die-Sinking EDM inside The Past Decade and furthermore quickly the different influencing parameter to EDM for good MRR, Less TWR and Less SR.
Key Words- Electro discharge machining (EDM), Process Parameter, MRR, and TWR, SR
Electrical Discharge Machining, commonly known as EDM is a non-conventional machining method used to remove material by a number of repetitive electrical discharges of small duration and high current density between the work piece and the tool. EDM is a critical and financially savvy strategy for machining to great degree extreme and fragile electrically conductive materials. In EDM, since there is no immediate contact between the work piece and the electrode, thus there are no mechanical powers existing |
Impact Factor value: 5.181
2. Review of Literature Electrical Discharge Machining (EDM) is a non-traditional machining process that has become a well-established machining option in manufacturing industries throughout the world. It has supplanted penetrating, processing, granulating and other customary machining operations in various angles. Miniaturized scale EDM, a current development, is observed to be a practical process for creation of smaller scale devices, miniaturized scale segments and miniaturized scale highlights with great dimensional exactness and repeatability. Influences of Discharge Energy The elements impacting the machining execution to a great extent rely on upon the discharge vitality connected for machining. The different issues, for example, surface unpleasantness, warm influenced zone, miniaturized scale hardness and break developments and machining nature of the workpiece are dictated by the measure of vitality discharged in each spark (Masuzawa 2000). Jahan et al. (2009a) concentrated the execution of kick the
1. INTRODUCTION
Š 2017, IRJET
between them. Any sort of conductive material can be machined utilizing EDM independent of the hardness or durability of the material.
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bucket sinking small scale EDM of tungsten carbide utilizing distinctive electrodes. They watched that the lower discharge vitality indicates better surface wrap up. Bring down information vitality demonstrates to show decrease in surface harshness and burr width.
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