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Reg No.:_. Name:

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FOURTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), MAY 2019
Course Code: ME220
Course Name: MANUFACTURING TECHNOLOGY (IE, ME, MA)

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any three questions. Each question carries 10 marks.

1 a) Why casting is preferred over other methods of manufacturing? Discuss

b) With the help of neat sketches, explain any two types of commonly used patterns 4

c) Distinguish between liquid shrinkage and solid shrinkage as related to casting. 3
How they are taken care of in designing sand casting

2 9) Describe the complete step by step procedure of investment casting. 4

b) Explain any one type of centrifugal casting process with a neat sketch 4

c) Name any eight common defects encountered in casting process 2

3 9) Sketch and explain Cluster and Planetary rolling mill arrangements used in rolling 6

processes

b) Why is the surface finish of a rolled product better in cold rolling than in hot 2
rolling?

€) A 400 mm thick slab is to be cold rolled. The roll diameter is 800 mm and the co- 2
efficient of friction is 0.08. Determine the maximum possible draft

4 9) With the help of a neat sketch, explain the distribution of roll pressure along the 4
contact length in flat rolling.
b) Is rolling process useful for making seamless thick-walled tubes? Explain with 4
proper sketches.
c) How can you reduce the ‘roll force’ in a rolling process? 2
PART B
Answer any three questions. Each question carries 10 marks
5 ഒ) What do you understand by the term ‘flash’ in a forging? Explain with the help of 3
a sketch
b) With a neat diagram explain the process of direct extrusion.
€) Explain with a neat sketch ‘wire drawing’ process

6 ஐ) Make neat sketches and explain coining and heading

+ +> ~ ~+

0) With the help of a schematic illustration, explain impact-extrusion process. What
is the function of a stripper plate in impact extrusion?

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