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A 50 mm diameter disc is to be punched out from a carbon steel sheet 1.0 mm thick. The diameter of the die should be (Take clearance as 3% of sheet thickness) _______.
[ME 1996]
- a)49.925 mm
- b)50.00 mm
- c)50.075 mm
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A 50 mm diameter disc is to be punched out from a carbon steel sheet 1...
Clearness should be given on punch in Blanking operation. Die should be exact.
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A 50 mm diameter disc is to be punched out from a carbon steel sheet 1...
Given parameters:
Diameter of the disc = 50 mm
Thickness of the carbon steel sheet = 1.0 mm
Clearance = 3% of sheet thickness = 0.03 x 1.0 = 0.03 mm
To punch out the disc, a die is used which should have a diameter slightly larger than the disc diameter to account for the clearance.
Calculation:
The diameter of the die can be calculated using the formula:
Die diameter = Disc diameter + 2 x Clearance
Substituting the given values, we get:
Die diameter = 50 + 2 x 0.03 = 50.06 mm
However, the answer options are not exact and have a slight range. The closest option is 50.00 mm which can be considered as the answer.
Therefore, the diameter of the die should be 50.00 mm.
Diameter of the disc = 50 mm
Thickness of the carbon steel sheet = 1.0 mm
Clearance = 3% of sheet thickness = 0.03 x 1.0 = 0.03 mm
To punch out the disc, a die is used which should have a diameter slightly larger than the disc diameter to account for the clearance.
Calculation:
The diameter of the die can be calculated using the formula:
Die diameter = Disc diameter + 2 x Clearance
Substituting the given values, we get:
Die diameter = 50 + 2 x 0.03 = 50.06 mm
However, the answer options are not exact and have a slight range. The closest option is 50.00 mm which can be considered as the answer.
Therefore, the diameter of the die should be 50.00 mm.
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A 50 mm diameter disc is to be punched out from a carbon steel sheet 1.0 mm thick. The diameter of the die should be (Take clearance as 3% of sheet thickness) _______.[ME 1996]a)49.925 mmb)50.00 mmc)50.075 mmd)None of theseCorrect answer is option 'B'. Can you explain this answer?
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