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GATE 2019: Manufacturing Quiz 3
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Question 1
Which of the following is the advantages of press forging over drop forging ?
Question 2
Which of the following assumption are taken during forming in slab method?
Question 3
A 10 mm deep cylindrical cup with diameter of 15mm is drawn from a circular blank. Neglecting the variation in the sheet thickness, the diameter (upto 2 decimal points accuracy) of the blank is _________ mm.
Question 4
The load required to punch a 20 mm diameter hole in 3 mm thick sheet. The properties of the material of the sheet are:
Tensile strength = 580 MPa
Yield strength in tension = 410 MPa
Shear strength = 340 MPa
Yield strength in shear = 240 MPa
Load in kN is
Tensile strength = 580 MPa
Yield strength in tension = 410 MPa
Shear strength = 340 MPa
Yield strength in shear = 240 MPa
Load in kN is
Question 5
A cylindrical billet of 100mm diameter is forged from 50 mm height to 40 mm at 1000 °C. The material has constant flow stress of 80 MPa.Find the work of deformation.?
Question 6
If a 10 kN drop-hammer is used to complete the reduction in one blow, what will be the height of the fall?
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