It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

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Answer 1

Question

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

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Answer 2

Question

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

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Answer 3

Question

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

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Answer 4

Question

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

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Answer 5

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

Answer 6

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

Answer 7

Chapter 24, Problem 10P

(a)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with traditional; grinding.

Answer 8

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

Answer 9

(b)

To determine

It is preferred to balance the cycle times required to grind a particular workpiece using traditional surface grinding and by creep feed grinding. The workpiece is 200 mm long, 30 mm wide and 75 mm thick. To make a fair assessment, the grinding wheel in both cases is 250 mm in diameter and 35 mm in width, and rotates at 1500 rev/min. It is preferred to remove 25 mm of material from the surface. When traditional grinding is used, the in feed is set at 0.025 mm, and the wheel traverses twice across the work surface during each pass before resetting the in feed. There is no cross-feed as the wheel width is larger than the work width. Each pass should be made at a work speed of 12 m/min, but the wheel overshoots the part on both sides. With acceleration and deceleration, the wheel is engaged in the work for half of the time on each pass. When creep feed grinding is used, the depth is increased by 1000 and the forward feed is decreased by 1000. Evaluate the time to complete the operation with creep feed grinding.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 24 - Prob. 1RQ Ch. 24 - Prob. 2RQ Ch. 24 - Prob. 3RQ Ch. 24 - Prob. 4RQ Ch. 24 - Prob. 5RQ Ch. 24 - Prob. 6RQ Ch. 24 - Prob. 7RQ Ch. 24 - Prob. 8RQ Ch. 24 - Prob. 9RQ Ch. 24 - Prob. 10RQ

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