GTU B.Tech 2020 Winter Question Papers || Gujarat Technological University
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Subject Name: Metal Forming Analysis
Time: 10:30 AM TO 12:30 PM
1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Draw flow curves for 1) rigid- ideal plastic 2) rigid plastic 3) elastic plastic. (MARKS 03)
(c) Derive the relationship between Yield strength in Shear and Yield strength in Tension according to Von Mises’ hypothesis of yielding. (MARKS 07)
Q.2 (a) Draw different types of rolling mills used in rolling process. (MARKS 03)
(b) Explain spring back effect in bending process. (MARKS 04)
(c) Draw and explain typical stress-strain diagram for ductile material. (MARKS 07)
(b) Discuss Anisotropy and its effects in deep drawing. (MARKS 04)
(c) Discuss stresses developed in deep drawing process with neat sketch. (MARKS 07)
Q.4 (a) Differentiate blanking and punching operation with sketch. (MARKS 03)
(b) Discuss direct and indirect extrusion with neat sketch. (MARKS 04)
Q.5 (a) What is upset forging? (MARKS 03)
(b) Discuss various rolling defects. (MARKS 04)
(c) Derive the formula for Rolling Load using Slab Method with usual notations. (MARKS 07)
Q.6 (a) Define (i) dry drawing (ii) wet drawing (iii) tube drawing. (MARKS 03)
(c) Analysis of compression of circular disc with slab method (MARKS 07)
Q.7 (a) Discuss Forging defects. (MARKS 03)
(b) Discuss effect of temperature on yield strength. (MARKS 04)
(c) Explain various operations performed on sheet-metal press machine. (MARKS 07)
(b) Briefly explain Forming limit curve with a neat sketch. (MARKS 04)
(c) With neat sketch explain the steps of close die forging process. (MARKS 07)
Date: 19/01/2021
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BE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020
Subject Code: 2171913
Total Marks: 56
Subject Name: Metal Forming Analysis
Time: 10:30 AM TO 12:30 PM
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Instructions:1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Draw flow curves for 1) rigid- ideal plastic 2) rigid plastic 3) elastic plastic. (MARKS 03)
--- Content provided by FirstRanker.com ---
(b) Differentiate between cold forming, hot forming and warm forming. (MARKS 04)(c) Derive the relationship between Yield strength in Shear and Yield strength in Tension according to Von Mises’ hypothesis of yielding. (MARKS 07)
Q.2 (a) Draw different types of rolling mills used in rolling process. (MARKS 03)
(b) Explain spring back effect in bending process. (MARKS 04)
(c) Draw and explain typical stress-strain diagram for ductile material. (MARKS 07)
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Q.3 (a) Explain compound and progressive dies. (MARKS 03)(b) Discuss Anisotropy and its effects in deep drawing. (MARKS 04)
(c) Discuss stresses developed in deep drawing process with neat sketch. (MARKS 07)
Q.4 (a) Differentiate blanking and punching operation with sketch. (MARKS 03)
(b) Discuss direct and indirect extrusion with neat sketch. (MARKS 04)
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(c) Discuss stress and strain in bending. (MARKS 07)Q.5 (a) What is upset forging? (MARKS 03)
(b) Discuss various rolling defects. (MARKS 04)
(c) Derive the formula for Rolling Load using Slab Method with usual notations. (MARKS 07)
Q.6 (a) Define (i) dry drawing (ii) wet drawing (iii) tube drawing. (MARKS 03)
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(b) Discuss effect of friction in forming process. (MARKS 04)(c) Analysis of compression of circular disc with slab method (MARKS 07)
Q.7 (a) Discuss Forging defects. (MARKS 03)
(b) Discuss effect of temperature on yield strength. (MARKS 04)
(c) Explain various operations performed on sheet-metal press machine. (MARKS 07)
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Q.8 (a) Define angle of bite and discuss its effect in rolling process. (MARKS 03)(b) Briefly explain Forming limit curve with a neat sketch. (MARKS 04)
(c) With neat sketch explain the steps of close die forging process. (MARKS 07)
Date: 19/01/2021
FirstRanker.com
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GUJARAT TECHNOLOGICAL UNIVERSITYBE- SEMESTER-VII (NEW) EXAMINATION - WINTER 2020
Subject Code: 2171913
Total Marks: 56
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