Today we will learn about electrical discharge machining principle, working, equipments, advantages and disadvantages with diagram. Paul,department of mechanical engineering, iit kharagpur. Nptel syllabus advanced machining processes video course course outline this course on advanced machining processes is also known as. Wire electrical discharge machining edm is one of the greatest innovations affecting the tooling and machining industry. In the last session, we have discussed about the basics of electric discharge machining process, its principle, features, the mechanism of material removal. This machining is same as removal of metal burr in presence of electric. It is an electrothermal machining process where electrical energy is used to generate electrical spark and material removal mainly occurs due to thermal energy of the spark. The main attraction of edm over traditional machining processes such as metal cutting. Nonlinear mechanism in electrical discharge machining. Module 3 selection of manufacturing processes nptel. Sharma, department of mechanical engineering, iit roorkee. Edm machining process is also known as spark erosion machining. Other machining operations shaping and planing a singlepoint tool moves linearly relative to the work part shaping a tool moves planing a workpart moves broaching performed by a multipletooth cutting tool by moving linearly. Find powerpoint presentations and slides using the power of, find free presentations research about electrical discharge machining ppt.
Electrical discharge grinding find suppliers, processes. Ultrasonic machining usm and waterjet machining wjm are typical examples of single action, mechanical non traditional machining processes. Electrical discharge machining edm is one of the most widely used nontraditional machining processes. If you continue browsing the site, you agree to the use of cookies on this website. Global electrical discharge cutting machine market research report 2017 this report provided by 24 market reports is about, electrical discharge cutting machine report by material, application, and. Electric discharge grinding edg, electric discharge diamond grinding eddg, and wire electric discharge machining wedm 6. Electric discharge machining free download as powerpoint presentation. Advanced manufacturing processes online course video. Diesinker edm and wire cut electric discharge machining wedm duration. Part 2 deals with thermal machining processes for example, electric discharge machining, laser beam machining, electron beam machining. Wire electric discharge machining wire edm youtube. Welcome to this session on electro discharge machining under the course advance manufacturing processes. Effect of electrode material on electrical discharge. Similarly, theres typically more than one way to cut parts.
During this machining process, a small portion of metals is also eroded away, leaving a small cater. Part 2 deals with thermal machining processes for example, electric discharge machining, laser beam machining, electron beam machining, etc. Russian scientist lazarenko 1 studied the electric discharge for metal cutting application and developed spark erosion machine in 1943. Unit iii electrical energy based processes 8 electric discharge machining edm working principleequipmentsprocess parameters. Electron beam machining process powerpoint ppt presentations. Electro discharge machining edm laser jet machining. Lecture series on manufacturing processes ii by prof. So here this electrodes are actually tool and workpiece. This is a manufacturing operation in which we used to make desired shapes by using an electrical. In this study the effect of electrode material was studied to avoid resulting residual stresses, the surface roughness and cracks resulted during electrical discharge machining edm. View electron beam machining process ppts online, safely and virusfree. Abrasive machining method where controlled spark discharges from an electrically charged, rotating wheel grinds the workpiece surface. Global electrical discharge cutting machine market research report 2017 this report provided by 24 market reports is about, electrical discharge cutting machine report by material, application, and geography global forecast to 2021 is a professional and indepth research report on the worlds major regional market conditions, focusing on the main regions north america, europe and asia.
Electrical discharge machining edm is an advanced nontraditional manufacturing technology that has many advantages over other machining methods. A presentation about wire electrical discharge machining wedm slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Wire electric discharge machining wire edm learn and grow. Diesinker edm and wire cut electric discharge machining wedm 21. It is a nontraditional machining process in which no physical tool is used. Edm process is based on thermoelectric energy between the work piece and an electrode. In electric discharge machining process an arc is produced when two currentcarrying wires are shortcircuited. Electro discharge machining edm of en44 tool steel for making circular hole. Electrical discharge machining used on hard metals works with electrically conductive materials 3. Electron beam machining is same as laser beam machining process in which except laser, high speed electron beam. This heat source may be in the form of a laser beam, electron beam, plasma beam, highfrequency induction or electric current etc. This is a manufacturing operation in which we used to make desired shapes by using an electrical spark. Jain, allied publishers, new delhi 41 electron beam machining. Wire machining ram machining other edm processes electrical discharge milling electrical discharge grinding electrical discharge dressing ultrasonic aided edm abrasive electrical discharge grinding micro electrical discharge machining.
Electric discharge grinding, electric discharge diamond. Electrical discharge machining edm is one of the earliest nontraditional machining processes. Electrical discharge machining is a machining method primarily used for hard metals or those that would be very difficult to machine with traditional techniques. Characterization of metals machined using edm major project submitted in. Lazarenko the two russian scientists invented the first relaxation circuit rc for edm. 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. Electric discharge machining edm slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. S jadoun, current advanced research development of electric discharge machining. Electric discharge machining has also made its presence felt in the new fields such as sports, medical and surgical. Electric discharge machining machining electricity. The definition is that electrical discharge machining wire cutting edmwc is a thermal mass reducing process that uses a continuously moving wire to remove. So in edm process a relaxation circuit is used, rc circuit, it is commonly known as rc circuit. Electro discharge machining edm is an electrothermal nontraditional machining process, where electrical energy is used to generate electrical spark and.
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