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GATE 2023 II Metal forming II Quiz 64
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Question 1
Consider the following statements regarding the Metal forming process:
1) Plastic deformation occurs.
2) It is followed if applied stress is more than the yield stress.
Which of the following statements is/are NOT correct _________?
Question 2
Hot-working of mild steel is carried out _____?
Question 3
In a rolling process, thickness of a strip is reduced from 4 mm to 2 mm using 300 mm diameter rolls rotating at 100 rpm. The velocity of the strip (in m/sec) at the neutral point is __________.
Question 4
A block made of perfectly plastic material with a yield stress of 260 MPa in simple tension has the diameter 200 mm × 100 mm × 150 mm (b × h × w) at one instant during plane strain forging. Assuming there is sticking friction, the peak pressure will be
Question 5
Consider the following Statements regarding the isothermal forming:
1) More uniform flow patterns.
2) High residual stress.
3) enhance the tool life.
Which of the following are the characteristics of the isothermal forming _________?
Question 6
The temperature at which the new grains are formed in the metal is called _________.
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