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During plunge grinding operation, the following data are observed
Cutting velocity used = 20000 m/min
Diameter of grinding wheel = 500 mm
Width of the work piece = 70 mm
Width of the work piece = 130 mm
Feed used = 0.2 mm/rev
Depth of cut = 0.1 mm
The material removal rate during grinding operation (in mm3/min) is
  • a)
    178248
  • b)
    178253.6
  • c)
    89127
  • d)
    17825
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
During plunge grinding operation, the following data are observedCutt...
The material removal rate during a plunge grinding operation can be calculated using the formula:

Material Removal Rate = Cutting Velocity × Width of Work Piece × Depth of Cut

Given data:
Cutting velocity (V) = 20000 m/min
Diameter of grinding wheel (D) = 500 mm
Width of work piece (W) = 70 mm
Feed (f) = 0.2 mm/rev
Depth of cut (d) = 0.1 mm

Let's calculate the material removal rate step by step:

1. Calculate the circumference of the grinding wheel:
Circumference = π × Diameter = 3.14 × 500 mm = 1570 mm

2. Calculate the feed rate per minute:
Feed rate = Feed × Spindle speed = 0.2 mm/rev × (20000/60) rev/min = 66.67 mm/min

3. Calculate the number of passes required to cover the width of the work piece:
Number of passes = Width of work piece / Feed rate = 70 mm / 66.67 mm/min = 1.05 passes

Since we cannot have a fraction of a pass, we will consider it as 2 passes to cover the entire width.

4. Calculate the material removal rate:
Material Removal Rate = Cutting velocity × Width of work piece × Depth of cut × Number of passes
= 20000 m/min × 70 mm × 0.1 mm × 2
= 28000 mm3/min

Converting mm3/min to m3/min:
Material Removal Rate = 28000 mm3/min × (1 m/1000 mm)3
= 28 × 10^-3 m3/min

Therefore, the material removal rate during the plunge grinding operation is 28 × 10^-3 m3/min, which is equivalent to 17825 mm3/min.
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Community Answer
During plunge grinding operation, the following data are observedCutt...
Plunge grinding operation
V = 20000 m/min D = 500 mm
b = 70mm W = 130mm
f = 0.2mm/rev d = 0.1mm
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During plunge grinding operation, the following data are observedCutting velocity used = 20000 m/minDiameter of grinding wheel = 500 mmWidth of the work piece = 70 mmWidth of the work piece = 130 mmFeed used = 0.2 mm/revDepth of cut = 0.1 mmThe material removal rate during grinding operation (in mm3/min) isa)178248b)178253.6c)89127d)17825Correct answer is option 'D'. Can you explain this answer?
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During plunge grinding operation, the following data are observedCutting velocity used = 20000 m/minDiameter of grinding wheel = 500 mmWidth of the work piece = 70 mmWidth of the work piece = 130 mmFeed used = 0.2 mm/revDepth of cut = 0.1 mmThe material removal rate during grinding operation (in mm3/min) isa)178248b)178253.6c)89127d)17825Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about During plunge grinding operation, the following data are observedCutting velocity used = 20000 m/minDiameter of grinding wheel = 500 mmWidth of the work piece = 70 mmWidth of the work piece = 130 mmFeed used = 0.2 mm/revDepth of cut = 0.1 mmThe material removal rate during grinding operation (in mm3/min) isa)178248b)178253.6c)89127d)17825Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During plunge grinding operation, the following data are observedCutting velocity used = 20000 m/minDiameter of grinding wheel = 500 mmWidth of the work piece = 70 mmWidth of the work piece = 130 mmFeed used = 0.2 mm/revDepth of cut = 0.1 mmThe material removal rate during grinding operation (in mm3/min) isa)178248b)178253.6c)89127d)17825Correct answer is option 'D'. Can you explain this answer?.
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