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An ECM operation is used to cut a square-shaped blind hole into a nickel block (valence = 2). The frontal working area of the electrode is 1583.2 mm?. Applied current = 1200 A and voltage = 12 volts. (a) If the process is 90% efficient, determine the rate of metal removal in mm/min. (b) If the electrolyte resistivity = 150 ohm-mm, determine the working gap. (c) If the gap created at the sides of the square-shaped electrode is equal to the working gap from part (b), determine the area of the square-shaped hole that is created (ignore rounding at corners). (d) How much time is required to cut the blind hole to a depth of 20 mm. O (a) 2508 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 17.29 min O (a) 2216 mm/mm; (b) 0.3739 mm; (c) 1600.05 mm2; (d) 19.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600,05 mm?; (d) 24.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm?; (d) 10.29 min (a) 2216 mm /mm; (b) 0.1056 mm; (c) 1600.05 mm?; (d) 14.29 min

An ECM operation is used to cut a square-shaped blind hole into a nickel block (valence = 2). The frontal working area of the electrode is 1583.2 mm?. Applied current = 1200 A and voltage = 12 volts. (a) If the process is 90% efficient, determine the rate of metal removal in mm/min. (b) If the electrolyte resistivity = 150 ohm-mm, determine the working gap. (c) If the gap created at the sides of the square-shaped electrode is equal to the working gap from part (b), determine the area of the square-shaped hole that is created (ignore rounding at corners). (d) How much time is required to cut the blind hole to a depth of 20 mm. O (a) 2508 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 17.29 min O (a) 2216 mm/mm; (b) 0.3739 mm; (c) 1600.05 mm2; (d) 19.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600,05 mm?; (d) 24.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm?; (d) 10.29 min (a) 2216 mm /mm; (b) 0.1056 mm; (c) 1600.05 mm?; (d) 14.29 min

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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An ECM operation is used to cut a square-shaped blind hole into a nickel block (valence = 2). The frontal working area of the electrode is 1583.2 mm?. Applied current = 1200 A and voltage = 12 volts. (a) If the process is 90% efficient, determine the rate of metal removal in mm/min. (b) If the electrolyte resistivity = 150 ohm-mm, determine the working gap. (c) If the gap created at the sides of the square-shaped electrode is equal to the working gap from part (b), determine the area of the square-shaped hole that is created (ignore rounding at corners). (d) How much time is required to cut the blind hole to a depth of 20 mm. (a) 2508 mm³/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 17.29 min O (a) 2216 mm /mm; (b) 0.3739 mm; (c) 1600.05 mm²; (d) 19.29 min O (a) 2216 mm /mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 24.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 10.29 min (a) 2216 mm3/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 14.29 min
Transcribed Image Text:An ECM operation is used to cut a square-shaped blind hole into a nickel block (valence = 2). The frontal working area of the electrode is 1583.2 mm?. Applied current = 1200 A and voltage = 12 volts. (a) If the process is 90% efficient, determine the rate of metal removal in mm/min. (b) If the electrolyte resistivity = 150 ohm-mm, determine the working gap. (c) If the gap created at the sides of the square-shaped electrode is equal to the working gap from part (b), determine the area of the square-shaped hole that is created (ignore rounding at corners). (d) How much time is required to cut the blind hole to a depth of 20 mm. (a) 2508 mm³/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 17.29 min O (a) 2216 mm /mm; (b) 0.3739 mm; (c) 1600.05 mm²; (d) 19.29 min O (a) 2216 mm /mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 24.29 min O (a) 2216 mm/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 10.29 min (a) 2216 mm3/mm; (b) 0.1056 mm; (c) 1600.05 mm²; (d) 14.29 min
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