9. The mechanism of material removal in EDM process is . (B) It … foundation, CA there has to be a relative motion between the tool and workpiece. (A) It can machine hardest materials. In unconventional machining no contact of tool and work piece. Which of the following statement is correct about EDM machining? the cutting tool is in direct confect with job. Home / Mechanical Engineering / Manufacturing And Production Technology / Question. Wider kerf is produced. b. 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. Inter, CA Which one of the following statement is correct in respect of unconventional machining processes? Electrochemical Machining (ECM)  Ultrasonic Machining (USM) Electron Beam Machining (EBM)  Laser Beam Machining (LBM) and Electric Discharge Machining (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. (R) Abrasive-slurry is used in Ultrasonic machining. 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). Answer. the tool material need to be harder than the job material. Very small space is required to set up ECM process Erosion takes place both on Work piece and the tool. It can machine hardest materials. the melting point, hardness, toughness, or brittleness of the workpiece material will impose no limitations 4. For example, EDM is typically slower than other machining methods, but it also tends to … 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 No literally: you machine with lightning. executive, Q For commercial applications, copper is best suited for fine machining, aluminium is used for die-sinking, and cast iron for rough machining. But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. Answer: Option D QA forum can get you clear solutions for any problem. Thousands of Experts/Students are active. A. (P) Electrolyte is used in Electro-chemical machining. Which of the above are correct? It produces high degree of surface finish. Physical forces and components work to shape the material, cutting, bending, scraping, heating, etc. 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. Which of the following is not true in case of Electrical discharge machining (EDM)? 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). Titanium alloys, due to their unique inherent properties, are extensively utilized in high end applications. 3. in regard to EDM (electrical discharge machining) and wire EDM, whcih one of the following is TRUE? 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. 1. “In metals, copper graphite has less electrical conductivity than graphite.” a) True … Plasma is a hot ionized gas. 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 Which of the following statement is correct about EDM machining? Practice, About We strive to maintain our certifications as a commitment to quality and excellence – staying ahead of the technology curve. C. Erosion and Cavitations. 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. PG, All 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. in Engineering Entrance, SI Which one of the following statements is correct in respect of unconventional machining processes? 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. (B) It … 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 Fundamentally, the electric erosion effect is understood by the breakdown of electrode material accompanying any form … In Electrical discharge machining, the temperature developed is of the order of a. Machining is a process in which a metal is cut into a desired final shape and size by a controlled material-removal process. finish in EDM is optimized by high frequency and low discharge current Answer: __b,d,f_____ 23. Consider the following statements pertaining to plasma arc cutting: 1. Ultrasonic machining is of particular interest for the cutting of non-conductive, brittle workpiece materials such as engineering ceramics. By employing EDM, complex shapes and geometries can be produced, with high dimensional accuracy. 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 … (b) High Speed Steel. Which one of the following statements is NOT true regarding a honing operation? final, CS 1. Which of the following is conventional machining process? … No cutting forces are involved in ECM process 3. You're machining a high-melting- temperature alloy using a ram EDM. What material removal rate in cubic inches per hour should you get? EDM doesn’t cut with material; it cuts with electricity. (Q) Electrolyte is used in Electrical discharge machining. Us. For example, EDM is typically slower than other machining methods, but it also tends to … 2,000°C b. Examveda . professional, CS 5. the tool is never in contact with the job. Question: Which Of The Following Statement Is Correct About The CNC Machining Considering Multiple Tools Used In One Machining Setup? No cutting forces are involved in ECM process 3. us, Affiliate Its free, Did not receive the code? in MBA Entrance, MAH C. The tool and work are never in contact with each other. (a) Copper. 4. ECM process consumes very high power 4. No literally: you machine with lightning. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. Program, Privacy A. But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. 2. 3. b. The mechanism of material removal in EDM process is. 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. 4. 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. foundation, CS 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. In 2012, King Tek was awarded the NADCAP certification in non-conventional machining (EDM) from PRI (The Performance Review Institute). 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. (d) Plain Carbon Steel. a. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. D. All of these. 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. 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. The EDM wire research currently focuses on achieving higher machining speed and surface integrity. 2. Option (a) is correct. 12. (R) Abrasive-slurry is used in Ultrasonic machining. B. Melting and Corrosion. ECM process consumes very high power 4. (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. B. State whether the following statement is true or false regarding the applications of EDM. Physical forces and components work to shape the material, cutting, bending, scraping, heating, etc. Constable, All 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. And the […] Which one of the following statement is correct in respect of unconventional machining processes? Which of the following is conventional machining process? Plasma arc cutting is used only for electrically conductive metals. 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. 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? D. Cavitations and Evaporation. (A) It can machine hardest materials. policy, Contact Answer: Option A . Arrange the processes in the increasing order of their maximum material removal rate. In Electrical discharge machining, the temperature developed is of the order of a. Which of the following statements are correct? MBA CET, IRMA EDM tools are made of a softer material than the workpiece material and which is a good conductor of electricity … 2. Traditional machining works through mechanics. Plasma can produce very high temperatures. 0.100 C. 1.00 O D. 0.080 13. Erosion takes place both on Work piece and the tool. Which of the following statement is correct about EDM machining? Merging the articles would, in my opinion cause an information loss for EDM. EDM doesn’t cut with material; it cuts with electricity. (c) Cast Iron. “In metals, copper graphite has less electrical conductivity than graphite.” a) True … Tutors, Free & A Forum, For (S) Abrasive-slurry is used in Abrasive jet machining. In Electro-Discharge Machining (EDM), the tool is made of. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. 9. 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. to Checkout, NEET 2,000°C b. a. (Q) Electrolyte is used in Electrical discharge machining. -- midnightbex 15:52, 20 March 2008 —Preceding unsigned comment added by 68.73.233.86 State whether the following statement is true or false regarding materials used in Electro discharge machining. 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? CO3 Understand the principles, processes and applications of thermal metal removal processes. (S) Abrasive-slurry is used in Abrasive jet machining. The process … The process … Which one of the following statements is correct in respect of unconventional machining processes? King Tek continually invests in the latest technology and equipment. State whether the following statement is true or false regarding the applications of EDM. 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. 0.500 B. (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 … A. Melting and Evaporation. Which of the following is not true in case of Electrical discharge machining (EDM)? 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. SAT, CA Which of the following statements are true for Electro-Chemical Machining (ECM)? 1. State whether the following statement is true or false regarding materials used in Electro discharge machining. 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