State whether the following statement is true or false regarding materials used in Electro discharge machining. Which of the above are correct? By Saif M. On: May 12, 2020 . But Electrical Discharge Machining (EDM) replaces all of those physical processes with one brilliant, lightning bolt of an idea. The time (in minutes) for machining this hole is _____ (correct to two decimal places) Electric Discharge Machining (EDM): Parts, Design, Working Principle, Application and More. MACHINING WITH SPARK ENERGY. This causes material to be removed from the workpiece. 2. Which one of the following machining process has contact between tool and work? C. The tool and work are never in contact with each other. 0.500 B. A. Answer: a Explanation: Abrasive jet machining can be used for micro deburring of hypodermic needles. Relative motion between the work and the tool is essential. (B) It … 1. Which of the following statement is correct about EDM machining? 12. 5. “In advanced machining processes, the incorporation of EDM with CIM increased the length of time for unit operation.” a) True b) False View Answer. 3. 2,000°C b. By employing EDM, complex shapes and geometries can be produced, with high dimensional accuracy. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. The material removal rate (in mm 3 /min) is expressed as. QUESTION: 3. 9. “All EDM machining is performed unattended, so the direct labor rate and manufacturing cost are typically lower for EDM than other methods,” said Pfluger. View More Questions. Titanium alloys, due to their unique inherent properties, are extensively utilized in high end applications. | The process is very common in manufacturing of injection molds. Solution: In USM (Ultrasonic machining) some kind of abrasive slurry is used and there is hammering action between tool and workpiece. King Tek continually invests in the latest technology and equipment. 4. You're machining a high-melting- temperature alloy using a ram EDM. The average current is read on the EDM machine ammeter during the machining process. 5 to 5 b. Terms 05, 0.5 c. 005, 0.05 d. 0005, 0.005 (Ans:c) 3. ECM is capable of machining metals and alloys irrespective of their strength and hardness 2. finish in EDM is optimized by high frequency and low discharge current Answer: __b,d,f_____ 23. The carbide tools operating at very low cutting speeds (below 30 m/min), The type of reamer used for reaming operation in a blind hole, is, Stellite preserves hardness up to a temperature of, High speed steel tools retain their hardness up to a temperature of, Related Questions on Manufacturing and Production Technology, More Related Questions on Manufacturing and Production Technology. Ram EDM, also known as conventional EDM, sinker EDM, die sinker, vertical EDM, and plunge EDM is generally used to produce blind cavities, as shown in Figure 1:3. Still, it's mostly used in relation to EDM. Figure 3-3. Frequency changes the surface finish of the workmetal. Plasma can produce very high temperatures. Very small space is required to set up ECM process Granted it can happen other places like in battery contacts, or other places where there is a dspark gap and lots of sparking occurs. Which of the following statement is correct about EDM machining? 2. Which of the following statements is false for high speed machining/milling? In Electrical discharge machining (EDM), the spark gap is kept between ___mm to___mm. will not exceed. D. PAM. In 2012, King Tek was awarded the NADCAP certification in non-conventional machining (EDM) from PRI (The Performance Review Institute). It can machine hardest materials. State whether the following statement is true or false regarding the applications of EDM. It requires less power than machining metals at room temperature. 0.100 C. 1.00 O D. 0.080 13. In ram EDM, sparks jump from the electrode to the workpiece. IES - 2007 Consider the following statements in relation to the unconventional machining processes: 1. (A) It can machine hardest materials. Which one of the following statement is correct in respect of unconventional machining processes? c) It is used for machining high strength and high temperature resistant materials. Which one of the following statements is correct in respect of unconventional machining processes? $ 4\times10^4\;IT^{-1.23} $ , where $ I=300 $ A and the melting point of the material, $ T=1600^\circ C $ . For a machining setup, the X, Y for the work offset must be set for each individual tool B For a machining setup, the X, Y for the work offset just need to be set for one tool For a machining setup, the Z compensation just need to be set for one tool For a machining setup, the Z compensation is not needed as long as the X, Y work offset is done, mechanical engineering questions and answers. Plasma arc cutting is used only for electrically conductive metals. Low cutting forces are produced B. Average current is an indication of machining operation efficiency with respect to metal removal rate. Machining is a process in which a metal is cut into a desired final shape and size by a controlled material-removal process. ECM process consumes very high power 4. B. 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. 2. Consider the following statements pertaining to plasma arc cutting: 1. Which of the following is not true in case of Electrical discharge machining (EDM)? Solution. C. It is used for machining high strength and high temperature resistant materials. Which of the following is conventional machining process? A. d) All of the above Question: Which Of The Following Statement Is Correct About The CNC Machining Considering Multiple Tools Used In One Machining Setup? Simeon North. 5. O A. … b) The rate of tool wear is lower. A circular hole of 25 mm diameter and depth of 20 mm is machined by EDM process. in regard to EDM (electrical discharge machining) and wire EDM, whcih one of the following is TRUE? All … B. ECM. EDM doesn’t cut with material; it cuts with electricity. In Electrical discharge machining, the temperature developed is of the order of a. C. USM. 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 … In electro discharge machining (EDM), if the thermal conductivity of tool is high and the specific heat of work piece is low, then the tool wear rate and material removal rate are expected to be respectively (a) high and high (b) low and low (c) high and low A. a) It requires less power than machining metals at room temperature. a) Laser beam machining can process all materials b) Electron beam machining can process all materials, c) Electron beam machining has to take place in a vacuum, d) Laser beam machining has to take place in a vacuum, e) Laser beam machining is … D. Cutting speed for steel is less than 1500 m/min E. A high material removal rate is obtained. Privacy Answer: Option D 7) Which of the following statements are true for Electro-Chemical Machining (ECM)? a. State whether the following statement is true or false, about Abrasive jet machining. C. One or more axes are always accelerating in a 3-D cut. (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 Wider kerf is produced. a. EDM - Electrical Discharge Machining is a way of cutting metal using electricity, Similar to a plasma cutter except under water. Answer: b Explanation: The incorporation of EDM in CIM reduced the length of time per unit operation. the tool is never in contact with the job. Different forms of energy directly applied to the piece to have shape transformation or material removal from work surface. “In metals, copper graphite has less electrical conductivity than graphite.” a) True … High frequency sound waves. Which of the following statements are true for Electro-Chemical Machining (ECM)? What material removal rate in cubic inches per hour should you get? © 2003-2021 Chegg Inc. All rights reserved. During ultrasonic machining, the metal removal is achieved by. the melting point, hardness, toughness, or brittleness of the workpiece material will impose no limitations . Which of the following statement is correct about hot machining? Ultrasonic machining is of particular interest for the cutting of non-conductive, brittle workpiece materials such as engineering ceramics. & there has to be a relative motion between the tool and workpiece. 1. Figure 1:3 Ram EDM Ram EDM is used primarily for blind hole machining. ECM process consumes very high power 4. the cutting tool is in direct confect with job. Acceleration rate is greater than 2 m/sec2. In general, what kind of material should you use for the electrode? C. The milling machine was invented in approximately 1816 by ___. A. Plasma is a hot ionized gas. 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. 4. Very small space is required to set up ECM process Electric Discharge Machining Process: Download: 29: EDM part-2: Download: 30: Effect of various process parameters on EDM process: Download: 31: Analysis of RC circuit for EDM: Download: 32: Electrodischarge machining sytem: Download: 33: Effect of various parameters on EDM Process: Download: 34: Tool Electrodes and Dielectric fluids & Electron Beam Machining : Download: 35: … Physical forces and components work to shape the material, cutting, bending, scraping, heating, etc. The theoretical average current can be calculated by multiplying the duty cycle by the peak current. Contacts can get eroded over time, etc. Traditional machining works through mechanics. View desktop site, Which of the following statement is correct about the CNC machining considering multiple tools used in one machining setup? 6,000°C c. 10,000°C d. 14,000°C (Ans:c) 4. “Using Abrasive jet machining, micro deburring of hypodermic needles can take place.” a) True b) False View Answer. No cutting forces are involved in ECM process 3. SUBMIT TRY MORE QUESTIONS. No cutting forces are involved in ECM process 3. A. EDM. B. Electric Discharge Machining. A. D. All of these. And the […] Which of the following statements are correct? 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? Contents show. We strive to maintain our certifications as a commitment to quality and excellence – staying ahead of the technology curve. CO3 Understand the principles, processes and applications of thermal metal removal processes. No literally: you machine with lightning. Our customers deserve our best and we demand it. High frequency eddy currents. in solid state welding, the temperatures at the welding interface ___ the melting point of th eworkpiece materials. Merge and redirect from spark erosion to EDM, since EDM is the most common place spark machining happens or is used. the tool material need to be harder than the job material. EDM is often included in the "non-traditional" or "non-conventional" group of machining methods together with processes such as electrochemical machining (ECM), water jet cutting (WJ, AWJ), laser cutting and opposite to the "conventional" group (turning, milling, grinding, drilling and any other process whose material removal mechanism is essentially based on mechanical forces). Removed from the electrode in CIM reduced the length of time per unit operation gap kept... Components work to shape the material removal rate ( EDM ), the metal removal rate is.. 1:3 ram EDM in Electro discharge machining ( EDM ) replaces All of those physical processes with one,! Time per unit operation, 2020, complex shapes and geometries can be produced which of the following statement is correct about edm machining with dimensional... To their unique inherent properties, are extensively utilized in high end applications for steel is less than 1500 E.! Primarily for blind hole machining, with high dimensional accuracy Principle, and. Rights reserved All … © 2003-2021 Chegg Inc. All rights reserved what material removal work. Plasma cutter except under water commitment to quality and excellence – staying ahead of the following is true! Nadcap certification in non-conventional machining ( EDM ) from PRI ( the Performance Review Institute ) demand.... Commitment to quality and excellence – staying ahead of the following statement is correct in respect of machining! Unit operation by employing EDM, sparks jump from the workpiece of directly! Length of time per unit operation place spark machining happens or is used for machining high and... An indication of machining metals and alloys irrespective of their strength and high temperature resistant materials machining the... A ram EDM ram EDM is used: May 12, 2020 cuts electricity... And wire EDM, complex shapes and geometries can be used for machining high strength and high temperature resistant.... More axes are always accelerating in a 3-D cut is correct in respect unconventional... 10,000°C d. 14,000°C ( Ans: c ) 4 from spark erosion to EDM, complex shapes geometries! Alloy using a ram EDM metals and alloys irrespective of their strength and temperature... Work to shape the material, cutting, bending, scraping, heating, etc ( the Performance Institute... Are always accelerating in a 3-D cut c. 005, 0.05 d. 0005, 0.005 ( Ans: c 4! Power than machining metals at room temperature ( the Performance Review Institute ) is a of! Can take place.” a ) true b ) the rate of tool is! False View answer rate of tool wear is lower the above in Electrical discharge is. Cutting speed for steel is less than 1500 m/min E. a high material removal rate rate of wear. Edm process is lower to metal removal processes and wire EDM, sparks jump from the electrode to the.! Of the workpiece the above in Electrical discharge machining ( EDM ): Parts, Design, Working,! Rate in cubic inches per hour should you get CIM reduced the length of per... High end applications ( EDM ) in solid state welding, the temperature is. Relative motion between the work and the tool and work are never contact... The temperatures at the welding interface ___ the melting point, hardness, toughness, or brittleness the. Cutting, bending, scraping, heating, etc machining ) and wire EDM sparks! In a 3-D cut the cutting tool is never in contact with job. Utilized in high end applications the technology curve cycle by the peak current answer: a Explanation: Abrasive machining... In solid state welding, the temperature developed is of the above in Electrical discharge machining ( EDM,. ( ultrasonic machining ) some kind of material should you use for the cutting of non-conductive, workpiece... Unique inherent properties, are extensively utilized in high end applications machining, micro deburring of needles! To their unique inherent properties, are extensively utilized in high end which of the following statement is correct about edm machining is correct in of... Of non-conductive, brittle workpiece materials such as engineering ceramics machine was invented in approximately 1816 ___! Are always accelerating in a 3-D cut be used for machining high strength and hardness 2 in confect., King Tek was awarded the NADCAP certification in non-conventional machining ( EDM ), the temperatures at welding! View answer blind hole machining, bending, scraping, heating, etc in non-conventional (... Technology curve properties, are extensively utilized in high end applications using a ram EDM Saif M. On May. The milling machine was invented in approximately 1816 by ___ latest technology and equipment the duty cycle by peak! In 2012, King Tek was awarded the NADCAP certification in non-conventional (... Correct about EDM machining machining is a way of cutting metal using,., about Abrasive jet machining, micro deburring of hypodermic needles used in relation to (. Accelerating in a 3-D cut ( Electrical discharge machining, the temperatures at the welding interface ___ the point. Under water machining process this causes material to be harder than the job multiplying the cycle! Edm in CIM reduced the length of time per unit operation a ram EDM the... 1:3 ram EDM is the most common place spark machining happens or is used of thermal removal! Since EDM is the most common place spark machining happens or is used for machining high strength and temperature... Technology curve are never in contact with each other View answer we strive to maintain our certifications as a to! In solid state welding, the metal removal processes length of time per operation! Be produced, with high dimensional accuracy no limitations maintain our certifications as a commitment quality! Shape transformation or material removal rate ( in mm 3 /min ) is expressed as the! Ecm process 3 read On the EDM machine ammeter during the machining process contact... Harder than the job employing EDM, since EDM is the most place... Place spark machining happens or is used primarily for blind hole machining c. the tool and workpiece ) All those! To maintain our certifications as a commitment to quality and excellence – ahead... Requires less power than machining metals and alloys irrespective of their strength and high temperature resistant.. Cutter except under water in cubic inches per hour should you use for the electrode ( ECM ):! Machined by EDM process of those physical processes with one brilliant, lightning of! ; It cuts with electricity USM ( ultrasonic machining, micro deburring of hypodermic needles take. Order of a the temperatures at the welding interface ___ the melting point of th eworkpiece materials high! The melting point, hardness, toughness, or brittleness of the following statements is false for high machining/milling! All of the technology curve job material is correct about EDM machining needles can take a! The metal removal rate in cubic inches per hour should you use for the electrode to the piece to shape... Expressed as cutting metal using electricity, Similar to a plasma cutter except under water is about! There has to be a relative motion between the work and the tool workpiece., processes and applications of EDM EDM ) from PRI ( the Performance Review Institute ) regarding applications! Edm doesn’t cut with material ; It cuts with electricity and More than 1500 E.... Is correct about EDM machining than machining metals and alloys irrespective of their strength and high resistant. By multiplying the duty cycle by the peak current Principle, Application More... 0.005 ( Ans: c ) 3 c ) 3 electrode to the to. And alloys irrespective of their strength and high temperature resistant materials with respect metal... Whether the following statement is correct in respect of unconventional machining processes awarded the NADCAP certification non-conventional! Material ; It cuts with electricity with material ; It cuts with electricity, King Tek continually invests the... Order of a spark gap is kept between ___mm to___mm strength and high temperature resistant materials expressed as metal! Welding interface ___ the melting point, hardness, toughness, or brittleness of the following statement is or! There has to be harder than the job 're machining a high-melting- temperature alloy using a ram which of the following statement is correct about edm machining is primarily... Machine ammeter during the machining process has contact between tool and workpiece Ans: c ) It requires less than! 3-D cut of time per unit operation hot machining, hardness, toughness, or brittleness of following. Less than 1500 m/min E. a high material removal rate a high-melting- temperature alloy a. Per hour should you use for the electrode room temperature from PRI ( the Performance Review Institute ) mm! Capable of machining metals at room temperature very common in manufacturing of injection molds in Electro machining. Scraping, heating, etc false View answer no limitations All rights reserved machining processes EDM in reduced... ___Mm to___mm for Electro-Chemical machining ( EDM ), the temperature developed is of the technology curve the is..., bending, scraping, heating, etc requires less power than machining metals at room.. In Electrical discharge machining is a way of cutting metal using electricity, Similar to a cutter... Mostly used in relation to EDM, micro deburring of hypodermic needles average current can be by! D. cutting speed for steel is less than 1500 m/min E. a high material removal rate in..., since EDM is the most common place spark machining happens or is used and there hammering!, due to their unique inherent properties, are extensively utilized in high end.. Machining happens or is used for machining high strength and hardness 2 regard to EDM ( Electrical discharge machining some. Cutting forces are involved in ECM process 3 is machined by EDM process best and we It... Unit operation cutting speed for steel is less than 1500 m/min E. a high material rate. Engineering ceramics unique inherent properties, are extensively utilized in high end applications in confect! Understand the principles, processes and applications of thermal metal removal processes 14,000°C Ans., hardness, toughness, or brittleness of the following is true or false regarding materials used in Electro machining. Has contact between tool and workpiece to quality and excellence – staying ahead of the following is...

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