Thousands of Experts/Students are active. King Tek continually invests in the latest technology and equipment. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. In Electrical discharge machining, the temperature developed is of the order of a. 1. The mechanism of material removal in EDM process is. the melting point, hardness, toughness, or brittleness of the workpiece material will impose no limitations to Checkout, NEET Among the above statements, the correct ones are (a) P and R only (b) Q and S only (c) Q, R and S only (d) P and Q only M. Hasan Akhtar (8180818280) 120SBJITMR, NAGPUR 119. State whether the following statement is true or false regarding materials used in Electro discharge machining. (Q) Electrolyte is used in Electrical discharge machining. The mechanism of material removal in EDM process is a) Melting and Evaporation b) Melting and Corrosion c) Erosion and Cavitations d) Cavitations and Evaporation Which of the following statements are correct? The electrode and workpiece are immersed in a dielectric liquid, and a feed mechanism maintains a spark gap of from 0.0005 to 0.020 inch (0.013 to … Consider the following statements pertaining to plasma arc cutting: 1. 2. By employing EDM, complex shapes and geometries can be produced, with high dimensional accuracy. EDM - Electrical Discharge Machining: I wanted a way to make a steel instructables character, so I decided to make my own EDM machine to help me.EDM - Electrical Discharge Machining is a way of cutting metal using electricity, Similar to a plasma cutter except under water. (R) Abrasive-slurry is used in Ultrasonic machining. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer 4. 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). (S) Abrasive-slurry is used in Abrasive jet machining. B. Constable, All 1. Electrical Discharge Machining (EDM) consists of a non-conventional machining process, which is widely used in modern industry, and especially in machining hard-to-cut materials. Electric discharge machining, also known as spark erosion, electro-erosion or spark machining is a process of metal removal based on the principle of erosion of metals by an interrupted electric spark discharge between the electrode tool cathode and the work anode. the cutting tool is in direct confect with job, the tool material need to be harder than the job material, the tool is never in contact with the job, there has to be a relative motion between the tool and workpiece. the cutting tool is in direct confect with job. Merging the articles would, in my opinion cause an information loss for EDM. a. Ultrasonic machining is of particular interest for the cutting of non-conductive, brittle workpiece materials such as engineering ceramics. 5. Option (a) is correct. No cutting forces are involved in ECM process 3. Which of the following statement is correct about EDM machining? & A Forum, For PG, All Tutors, Free ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. Plasma arc cutting is used only for electrically conductive metals. For commercial applications, copper is best suited for fine machining, aluminium is used for die-sinking, and cast iron for rough machining. Which one of the following statements is correct in respect of unconventional machining processes? A. I work for an EDM Sales company and while spark erosion is HOW Electrical Discharge Machining works, it doesn't encompass fully what Electrical Discharge Machining is. Understanding Electrical Discharge Machining 25 C. Small Hole EDM Drilling Small hole EDM drilling, also known as fast hole EDM drilling, hole popper, and start hole EDM drilling, uses a guided hollow electrode to drill holes by means of electrical discharge machining by eroding material from the workpiece, as shown in Figure 1:4. Which of the following statements are true for Electro-Chemical Machining (ECM)? 4. (a) Copper. In 2012, King Tek was awarded the NADCAP certification in non-conventional machining (EDM) from PRI (The Performance Review Institute). in MBA Entrance, MAH Examveda . b. 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). Send OTP again, We Accept all major debit and credit cards, FREE and Unlimited practice for all competitive exams Online Courses, Mock tests and more Learn and Practice, Go Titanium alloys, due to their unique inherent properties, are extensively utilized in high end applications. Consider the following reasons for using non-conventional machining processes: (a) For making copper powder, copper plate is made cathode in electrolyte tank, (b) For making aluminium powder, alumnimium plate is made anode, (c) High amperage produces powdery deposit of cathode metal on anode, (d) Atomization process is more suitable for low mwlting point metals, aluminium gets dissolved in electrolyte in powder form, His Divine Grace A.C. Bhaktivedanta Swami Srila Prabhupada. Traditional machining works through mechanics. 0.100 C. 1.00 O D. 0.080 13. executive, Q B. Melting and Corrosion. 2,000°C b. Its free, Did not receive the code? SAT, CA Which one of the following processes would be appropriate to drill a hole with a square crosssection, 0.25 inch on a side and 1-inch deep in a steel workpiece: (a) abrasive jet machining, (b)chemical milling, (c) EDM, (d) laser beam machining, (e) oxyfuel cutting, (f) water jet cutting, or(g) wire EDM? State whether the following statement is true or false regarding the applications of EDM. No cutting forces are involved in ECM process 3. Which of the following is not true in case of Electrical discharge machining (EDM)? 9. Which of the above are correct? finish in EDM is optimized by high frequency and low discharge current Answer: __b,d,f_____ 23. Electrical-discharge machining (EDM) EDM involves the direction of high-frequency electrical spark discharges from a graphite or soft metal tool, which serves as an electrode, to disintegrate electrically conductive materials such as hardened steel or carbide. in Engineering Entrance, SI Physical forces and components work to shape the material, cutting, bending, scraping, heating, etc. Answer: Option D (a) The cutting tool is in direct contact with the job (b) The tool material needs to be harder than the job material (c) The tool is never in contact with the job (d) There has to be a … 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? … The process … D. Cavitations and Evaporation. Fundamentally, the electric erosion effect is understood by the breakdown of electrode material accompanying any form … Question: Which Of The Following Statement Is Correct About The CNC Machining Considering Multiple Tools Used In One Machining Setup? 12. Generally speaking, however, the principle characteristics of electrical discharge machining should give you a sense of whether EDM is a good fit for your application. The EDM wire research currently focuses on achieving higher machining speed and surface integrity. professional, CS Electrochemical Machining (ECM)  Ultrasonic Machining (USM) Electron Beam Machining (EBM)  Laser Beam Machining (LBM) and Electric Discharge Machining (EDM). (a) The cutting tool is in direct contact with the job, (b) The tool material needs to be harder than the job material, (c) The tool is never in contact with the job, (d) There has to be a relative motion between the tool and the job. In unconventional machining no contact of tool and work piece. No literally: you machine with lightning. D. All of these. QA forum can get you clear solutions for any problem. In Electrical discharge machining, the temperature developed is of the order of a. 2,000°C b. Which of the following is conventional machining process? (A) It can machine hardest materials. the tool material need to be harder than the job material. The processes that have this common theme, controlled material removal, are today collectively known as subtractive manufacturing, in distinction from processes of controlled material addition, which are known as additive manufacturing. (P) Electrolyte is used in Electro-chemical machining. 0.500 B. Which of the following is conventional machining process? us, Affiliate For example, EDM is typically slower than other machining methods, but it also tends to … (S) Abrasive-slurry is used in Abrasive jet machining. A. Melting and Evaporation. 9. Machining is a process in which a metal is cut into a desired final shape and size by a controlled material-removal process. What material removal rate in cubic inches per hour should you get? foundation, CA in regard to EDM (electrical discharge machining) and wire EDM, whcih one of the following is TRUE? State whether the following statement is true or false regarding the applications of EDM. Which of the following statement is correct about EDM machining? The process … ECM process consumes very high power 4. 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. (A) It can machine hardest materials. Generally speaking, however, the principle characteristics of electrical discharge machining should give you a sense of whether EDM is a good fit for your application. Which one of the following statements is NOT true regarding a honing operation? But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. 2. Arrange the processes in the increasing order of their maximum material removal rate. 4. policy, Contact Which of the following is not true in case of Electrical discharge machining (EDM)? Very small space is required to set up ECM process Erosion takes place both on Work piece and the tool. C. Erosion and Cavitations. Wider kerf is produced. Which one of the following statements is correct in respect of unconventional machining processes? Understanding Electrical Discharge Machining 25 C. Small Hole EDM Drilling Small hole EDM drilling, also known as fast hole EDM drilling, hole popper, and start hole EDM drilling, uses a guided hollow electrode to drill holes by means of electrical discharge machining by eroding material from the workpiece, as shown in Figure 1:4. (b) High Speed Steel. -- midnightbex 15:52, 20 March 2008 —Preceding unsigned comment added by 68.73.233.86 CO3 Understand the principles, processes and applications of thermal metal removal processes. b. (c) Cast Iron. 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. The mechanism of material removal in EDM process is . Practice, About Which of the following statement is correct about EDM machining? In Electro-Discharge Machining (EDM), the tool is made of. Plasma is a hot ionized gas. Among the above statements, the correct ones are (a) P and R only (b) Q and S only (c) Q, R and S only (d) P and Q only 145. (B) It … It can machine hardest materials. Inter, CA Assertion (A): In ECM, the shape of the cavity is the .mirror image of the tool, but unlike EDM, the tool wear in ECM is less. 1. “In metals, copper graphite has less electrical conductivity than graphite.” a) True … In this regard, US patent 20100012628A1 presents a hybrid wire embedded with electrically nonconducting abrasives, as shown in Figure 35.In this process, two-body abrasion is used to improve material removal through electrical erosion. Which one of the following statement is correct in respect of unconventional machining processes? Answer: Option A . Erosion takes place both on Work piece and the tool. Answer. You're machining a high-melting- temperature alloy using a ram EDM. EDM - Electrical Discharge Machining: I wanted a way to make a steel instructables character, so I decided to make my own EDM machine to help me.EDM - Electrical Discharge Machining is a way of cutting metal using electricity, Similar to a plasma cutter except under water. Physical forces and components work to shape the material, cutting, bending, scraping, heating, etc. Program, Privacy the tool is never in contact with the job. ECM process consumes very high power 4. EDM doesn’t cut with material; it cuts with electricity. But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. there has to be a relative motion between the tool and workpiece. 3. Home / Mechanical Engineering / Manufacturing And Production Technology / Question. State whether the following statement is true or false regarding materials used in Electro discharge machining. EDM doesn’t cut with material; it cuts with electricity. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer Plasma can produce very high temperatures. MBA CET, IRMA And the […] 3. (Q) Electrolyte is used in Electrical discharge machining. No literally: you machine with lightning. 2. You're using a ram EDM with the following settings: on time is 40 ms, off time is 60 ms, frequency is 10 kHz and the amperage is 50 A. a. the tool used is a stone made by bonded abrasives b. it removes a small amount of material from the surface of holes c. it cannot remove common eroors left by boring d. it can remove grinding marks left by grinding Which one of the following statement is correct in respect of unconventional machining processes? (d) Plain Carbon Steel. foundation, CS It produces high degree of surface finish. a. “In metals, copper graphite has less electrical conductivity than graphite.” a) True … Us. (B) It … For example, EDM is typically slower than other machining methods, but it also tends to … We strive to maintain our certifications as a commitment to quality and excellence – staying ahead of the technology curve. 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