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Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.
- a)250.10
- b)210.10
- c)199.99
- d)166.66
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel...
L=L1+L2+L3+L4
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L1=Depth of the hole=100mm
L2=Approach length =0mm
L3=Length of tip=0.5D/tanθ =0.5×20/tan67.5°=4.14
(where,2θ=point angle or lip angle)
L4=Over travel=0mm
⇒L=L1+L3=104.142
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Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel...
To solve this question, we can use Taylor's tool life equation which is given as VT^0.3 = C, where V is the cutting speed in m/min and T is the tool life in minutes. We are given the drilling spindle speed, feed, and point angle of the drill, and we need to find the Taylor's constant C.
1. Calculation of cutting speed:
The cutting speed (V) can be calculated using the formula V = πDN, where D is the diameter of the drill and N is the spindle speed in rpm. Substituting the given values, we get V = π * 20 * 600/1000 = 37.7 m/min.
2. Calculation of tool life:
The tool life (T) can be calculated using the formula T = (number of holes)/(feed * N), where the number of holes is given as 300, feed is given as 0.2 mm/rev, and N is the spindle speed in rpm. Substituting the given values, we get T = 300/(0.2 * 600) = 25 minutes.
3. Calculation of Taylor's constant C:
Using the given equation VT^0.3 = C, we can substitute the values of V and T to find C. Substituting the values, we get C = 37.7 * 25^0.3 = 199.99.
Therefore, the Taylor's constant C is approximately 199.99, which corresponds to option (c).
1. Calculation of cutting speed:
The cutting speed (V) can be calculated using the formula V = πDN, where D is the diameter of the drill and N is the spindle speed in rpm. Substituting the given values, we get V = π * 20 * 600/1000 = 37.7 m/min.
2. Calculation of tool life:
The tool life (T) can be calculated using the formula T = (number of holes)/(feed * N), where the number of holes is given as 300, feed is given as 0.2 mm/rev, and N is the spindle speed in rpm. Substituting the given values, we get T = 300/(0.2 * 600) = 25 minutes.
3. Calculation of Taylor's constant C:
Using the given equation VT^0.3 = C, we can substitute the values of V and T to find C. Substituting the values, we get C = 37.7 * 25^0.3 = 199.99.
Therefore, the Taylor's constant C is approximately 199.99, which corresponds to option (c).
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Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer?
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Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer?.
Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer?.
Solutions for Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Blind holes of 20 mm diameter, 100 mm deep are being drilled in steel block. Drilling spindle speed is 600 rpm, feed is 0.2 mm/rev, point angle of drill is 135 °. During this operation, the drill wears out after producing 300 holes. Taylor’s tool life equation is of the form VT0.3 = C, where V = cutting speed in m/min and T = tool life in minutes Taylor’s constant C will be _____.a)250.10b)210.10c)199.99d)166.66Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice GATE tests.
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