GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VIII (OLD) EXAMINATION — WINTER 2018
--- Content provided by FirstRanker.com ---
Subject Code: 182101 Date: 19/11/2018Subject Name: Metal Working Processes
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
--- Content provided by FirstRanker.com ---
2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) Classify and differentiate metal working processes. (07)
(b) Compare open die and close die forging. Also explain functions of flash in close die forging. (07)
Q.2 (a) Discuss recovery, recrystallization and grain growth after cold working. (07)
--- Content provided by FirstRanker.com ---
(b) Derive forging load equation by plane strain forging analysis. (07)OR
(b) For rolling explain: Bloom, Billet, Slab, Plate, Sheet, Strip and Angle of Bite. (07)
Q.3 (a) Discuss defects in rolling process with their causes and remedies. (07)
(b) Enlist forging defects and give their causes and remedies. (07)
--- Content provided by FirstRanker.com ---
OR
Q.3 (a) Discuss rolling variables. (07)
(b) What is extrusion? Explain different types of extrusion process and role of lubricant. (07)
Q.4 (a) Discuss the residual stresses in metal working processes. (07)
(b) List the factors that determine temperature of work-piece in metal working and get equation for it. (07)
--- Content provided by FirstRanker.com ---
OR
Q.4 (a) List sheet metal working operations and briefly discuss shearing and embossing. (07)
(b) Explain different forging operations with neat sketch. (07)
Q.5 (a) Write note on optical pyrometer. (07)
(b) Derive equation for total extrusion force using extrusion process analysis. (07)
--- Content provided by FirstRanker.com ---
OR
Q.5 (a) With neat sketch explain different rolling mill. (07)
(b) Write note on wire drawing. (07)
--- Content provided by FirstRanker.com ---
This download link is referred from the post: GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University