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