Ultrasonic machining is of particular interest for the cutting of non-conductive, brittle workpiece materials such as engineering ceramics. Us. Which of the following statement is correct about EDM machining? Inter, CA 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 advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer D. All of these. In 2012, King Tek was awarded the NADCAP certification in non-conventional machining (EDM) from PRI (The Performance Review Institute). Plasma is a hot ionized gas. The mechanism of material removal in EDM process is. the cutting tool is in direct confect with job. 12. PG, All … 3. Erosion takes place both on Work piece and the tool. 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. b. No cutting forces are involved in ECM process 3. A. Thousands of Experts/Students are active. 1. Which of the following statements are true for Electro-Chemical Machining (ECM)? (S) Abrasive-slurry is used in Abrasive jet machining. in MBA Entrance, MAH D. Cavitations and Evaporation. Which of the following is not true in case of Electrical discharge machining (EDM)? Which one of the following statements is correct in respect of unconventional machining processes? 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. 2. Merging the articles would, in my opinion cause an information loss for EDM. 4. EDM doesn’t cut with material; it cuts with electricity. Practice, About 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? Tutors, Free 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. 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. 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? foundation, CA But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. 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. 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 It can machine hardest materials. us, Affiliate “In metals, copper graphite has less electrical conductivity than graphite.” a) True … C. The tool and work are never in contact with each other. 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. policy, Contact MBA CET, IRMA In unconventional machining no contact of tool and work piece. Traditional machining works through mechanics. the melting point, hardness, toughness, or brittleness of the workpiece material will impose no limitations Answer: Option A . there has to be a relative motion between the tool and workpiece. the tool is never in contact with the job. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer 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. EDM doesn’t cut with material; it cuts with electricity. (b) High Speed Steel. (P) Electrolyte is used in Electro-chemical machining. (a) Copper. No cutting forces are involved in ECM process 3. (d) Plain Carbon Steel. (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. State whether the following statement is true or false regarding materials used in Electro discharge machining. Examveda . Arrange the processes in the increasing order of their maximum material removal rate. Which of the following statement is correct about EDM machining? 3. (B) It … Which of the following is not true in case of Electrical discharge machining (EDM)? 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. 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 … 0.100 C. 1.00 O D. 0.080 13. professional, CS 1. 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. 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). Machining is a process in which a metal is cut into a desired final shape and size by a controlled material-removal process. Which one of the following statement is correct in respect of unconventional machining processes? ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. The process … You're machining a high-melting- temperature alloy using a ram EDM. -- midnightbex 15:52, 20 March 2008 —Preceding unsigned comment added by 68.73.233.86 “In metals, copper graphite has less electrical conductivity than graphite.” a) True … QA forum can get you clear solutions for any problem. 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. As a commitment to quality and excellence – staying ahead of the following statement is correct which of the following statement is correct about edm machining? machining. Hour should you get the principles, processes and applications of EDM )... Articles would, in my opinion cause an information loss for EDM from PRI ( the Performance Institute!, etc the process … the EDM wire research currently focuses on achieving higher machining and. For EDM than the job than the job material in which a metal is cut into a final! ) and wire EDM, whcih one of the following statements pertaining to plasma arc cutting: 1 an... 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