Download GTU B.Tech 2020 Winter 6th Sem 2162508 Metal Forming Technology Question Paper

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Subject Code: 2162508

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt any FOUR questions out of EIGHT questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. Define a) Slip b) Twinning (03 MARKS)
   2. Explain the factors affecting the strain rate (04 MARKS)
   3. Explain the differences of hot and cold working processes in detail. (07 MARKS)

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2. 1. Describe various Rolling defects. (03 MARKS)
   2. Explain the process of Ring rolling with a neat sketch (04 MARKS)
   3. Explain Two-High, Three-High & Four-High Rolling Mill with neat sketch. (07 MARKS)

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3. 1. Explain working of planetary rolling mill with sketch. (03 MARKS)
   2. Mention some of the advantages of forging over casting process. (04 MARKS)
   3. Explain the piercing method of pipe and tube manufacturing by extrusion. (07 MARKS)
4. 1. Classify various types of forging process. (03 MARKS)

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   2. Write a short note on forging defects. (04 MARKS)
   3. Differentiate Forward and backward Extrusion in detail with sketch. (07 MARKS)
5. 1. Explain Cold Heading process. (03 MARKS)
   2. What is Bending? Compare Edge bending, V-bending and U-bending. (04 MARKS)

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   3. Sketch and Compare Wire Drawing with Rod/Bar Drawing. (07 MARKS)
6. 1. Explain Rotary Swaging process (03 MARKS)
   2. Differentiate between coining and embossing process. (04 MARKS)
   3. Explain Open and Closed Die Forging processes. (07 MARKS)

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7. 1. Distinguish between Blanking and Piercing process. (03 MARKS)
   2. Sketch and explain Deep drawing. (04 MARKS)
   3. Explain the principle of Hydrostatic Extrusion process with a neat sketch. (07 MARKS)

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8. 1. Classify the sheet metal forming process. (03 MARKS)
   2. Write a short note on metal forming process with its merits and demerits. (04 MARKS)
   3. Mention the process steps involved in high velocity forming of metals and bring out its positive features, limitations and applications. (07 MARKS)

Date: 22/01/2021

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