GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- VI (Old) EXAMINATION - WINTER 2019
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Subject Code: 162503 Date: 11/12/2019
Subject Name: Metal Forming Processes
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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Q.1 (a) Explain the Types of fractures and its influence in service life of part. (07)
(b) Explain the metal forming processes. Write its advantages, disadvantages and applications. (07)
Q.2 (a) With the help of schematic diagram explain slip and twinning mechanism that cause plastic deformations in metals and alloys. (07)
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(b) Explain Fatigue failure curves and method to improve fatigue Resistance. (07)
OR
(b) Explain the Stress strain relations in elastic and plastic deformation. (07)
Q.3 (a) Explain Tube production by rolling processes. (07)
(b) Explain the Hot and Cold Working Processes and Its Effect on Mechanical Properties. (07)
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OR
Q.3 (a) Classify the Rolling mills and Explain any two. (07)
(b) How calculate the Rolling Load? Explain (07)
Q.4 (a) Explain the Defects and Properties of Forged Products. (07)
(b) Explain the Force Analysis in forging process. (07)
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OR
Q.4 (a) Differentiate forward extrusion and backward extrusion with neat sketch. (07)
(b) Explain the principal of metal spinning with neat sketch. (07)
Q.5 (a) Classify the Drawing processes. Explain Tube of Wire Drawing Process. (07)
(b) Explain the process of press brake forming. (07)
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OR
Q.5 (a) Explain the Hydrostatic Extrusion. Write its merits and demerits. (07)
(b) Explain the High Velocity Forming and High Energy Rate Forming of metals. (07)
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