Manufacturing Process - 1 - Dec 2014

Mechanical Engineering (Semester 3)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) Give the Classification of Machining Processes and Also discuss the major factors influence the selection of a suitable machining process.(7 marks) 1 (b) Explain size of Lathe. Also describe various types of Lathes along with their applications and general specifications.(7 marks) 2 (a) Describe Turning operation in Lathe Machine. Also discuss Shoulder Turning and Eccentric Turning with neat sketch.(7 marks)

Answer any one question from Q2 (b) or Q2 (c)

2 (b) What is Tool Signature and Tool Geometry ? Explain importance of tool angles for single point cutting tool in brief.(7 marks) 2 (c) Write a short note on "Turret Lathe".(7 marks)

Answer any two question from Q3 (a), (b) or Q3 (c), (d), (e)

3 (a) Enlist various operations carried out on drilling machine. Also explain Tapping, Trepanning and Countersinking.(7 marks) 3 (b) Discuss briefly, with a neat sketch, horizontal boring machine.(7 marks) 3 (c) Explain Radial drilling machine with neat sketch.(7 marks) 3 (d) Give the comparison between boring and reaming. Also describe Precision boring machine with neat sketch.(7 marks)

Answer any two question from Q4 (a), (b) or Q4 (c), (d), (e)

4 (a) What is Indexing? Enlist and Discuss various types of Indexing.(7 marks) 4 (b) Explain Hydraulic shaper mechanism in details and also discuss the quick return motion of Hydraulic shaper.(7 marks) 4 (b) Give the differences among shaper, planner and slotter. Discuss Briefly the planner driving mechanism.(7 marks) 4 (c) Enlist various Milling Operations. Discuss the following operations.
1. Straddle Milling
2. Gear Milling
3. Face Milling(7 marks)

Answer any two question from Q5 (a), (b) or Q5 (a), (b)

5 (a) What are the advantages, limitations and applications of broaching? Explain "Pull broaching" and "Push Broaching".(7 marks) 5 (b) What is an Abrasive? How are abrasive Classified? Enlist and explain various abrasives used in grinding wheels.(7 marks) 5 (c) Write a short note on: "Band Sawing Machine"(7 marks) 5 (d) With neat sketch explain Center less Grinding Machine.(7 marks)