In micro-electrical discharge machining (micro-EDM), the discharge duration is ultra-short, and both the electric action and the thermal action by the discharge channel play important roles in the removing process of cathode material. Electrical Discharge Machining (EDM) is a non-traditional machining process. The mechanism of material removal in EDM process is (a) Melting and Evaporation (b) Melting and … In. Academic Resource. The mechanism of material removal in EDM process is - 18798051 The mechanism of material removal in EDM process is A) Erosion and Cavitations B) Cavitations and Evaporation C) Melting and Evaporation D) Melting and Corrosion Electrical discharge machining is a machining method primarily used for hard metals or those that would be very difficult to machine with traditional techniques. Here the tool is negative and w/p is positive. In EDM the material is removed from the workpiece due to the electric discharge produced between the tool mounted on the machine and workpiece which is immersed in the dielectric medium. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The aim of this paper is to study the Electro discharge machining process. Electrical Discharge Machining (EDM) is a non traditional machining and electro thermal process in which material from the workpiece is removed by using electrical discharges (sparks). Material removal from molten metal was observed in order to investigate the material removal mechanism in the electrical discharge machining (EDM) process. Physics Questions & Answers for AIEEE,Bank Exams,CAT, Analyst,Bank Clerk,Bank PO : The mechanism of material removal in EDM process is Consequently, the material removal mechanism in EDM can be explained in two ways: one by vaporization and the other by the explosion of bubbles generated in the material. The process of automating one or more EDM machines is similar to that of other conventional machine tools. It also involves direct energy dissipated in the EDM process… This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “EDM-Mechanism of Material Removal – 2”. In Electrical discharge machining; a potential difference is applied across the tool and w/p in pulse form. Watch Queue Queue. Electrical discharge machining is one of the earliest nontraditional machining, extensively used in industry for processing of parts having unusual profiles with reasonable precision. - In Electro-Chemical Machining (ECM) process, the metal removal is carried out by electrosysis EDM is used to machine intricate profiles, small diameter drillings and hard materials [1]. EDM process is based on thermoelectric energy between the work piece and an electrode. Yet, the effects of various process parameters on the material removal rate (MRR) and the resulting surface topography are not well understood. Material Removal Rate, Tool Wear Rate and Surface Roughness Analysis of EDM Process (IJSRD/Vol. Report Error B. Melting and Corrosion. If both the blocks are tied together and the same force acts on their combination, the acceleration will be about. 1. Since material removal occurs intermittently not only during the discharge duration but also just after the discharge duration, we hypothesize for the latter case that degassing of the solution gas in the molten metal, which will occur … Copyright 2018 InterviewMania.com - All rights reserved. What is the range of frequencies of sound waves audible to human beings? Results show that the machinability of Fcc-TiBCN is satisfying. Previous Question The mechanism of material removal in EDM process is. Another block of mass m2 kg accelerates at 20 m/s when the same force acts on it. EDM is mainly used to machine difficult-to-machine materials and high strength temperature resistant alloys. EDM can be used to machine difficult … Being hard copper-tungsten MMC getting great demand from industries like aerospace, automobile an. This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “EDM-Mechanism of Material Removal – 1”. The machining process in electrical discharge machining (EDM) consists of a melting process and a removal process. As the potential difference is applied, electrons from the tool start to move towards the workpiece. The mechanism of material removal in EDM process is - 18798051 1. Explain. Achieving an efficient MRR is not simply a matter of the right machine settings. (a) Copper and brass (b) Aluminium and graphite (c) Silver tungsten and copper tungsten (d) Cast iron 2. In EDM (electric discharge machining ) the mechanism of Material Removal is Melting and vaporization aided by the cavitations, also called s view the full answer Previous question Next … Two different mechanisms have been proposed to analyze the material removal viz., electro-mechanical analysis for A spark occurs in a small gap between the work piece and the electrode and removes the material from the work piece through melting and vaporising. A stretched bow, the acceleration will be about to be the main major mode the research. Need, now veteran with 20+ years @ Cisco & Wipro, Founder. That are electrically conductive, and the workpiece dielectric medium works as a deionizing medium provides... Was first observed in 1770 by Joseph Priestley laser cutting, EDM does not need mechanical force in the diagram. Major mode be about … the mechanism of material removal – 1 ” to melting and formation... Any other metal or metal alloy s… 1 is - 18798051 1 used as low wearing material... 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