Manufacturing Processes II Q.B.
Manufacturing Processes II Q.B.
Manufacturing Processes II Q.B.
School of Engineering
and Technology
Department of
Mechanical Engineering
Question Bank BY
Dr.K.P.Pawar
******
3 Page
CO Q.NO. QUESTIONS M KL
SHORT QUESTIONS
2 1 Sketch Merchants Circle Diagram for Cutting Forces. 2 3
2 2 State the Assumptions of Merchants. 2 1
2 3 Sketch the geometry of Single Point Cutting Tool. 2 3
2 4 Define Tool Life. 2 1
2 5 Define Tool Wear. 2 1
2 6 List the factors affecting the Tool Life. 2 1
2 7 List the different mechanisms of Tool Wear. 2 1
2 8 State the causes of Tool Wear. 2 1
2 9 List the methods to improve Tool Life. 2 1
2 10 Describe the Taylor’s tool life equation. 2 1
2 11 Define the Machinability. 2 1
2 12 List the factor affecting machinability. 2 1
LONG QUESTIONS
2 13 Write the Assumptions of Merchant’s and Derive the relations between various 10 6
cutting forces by drawing Merchant’s circle.
2 14 Explain the geometry of single point cutting tool with neat sketch. 7 6
2 15 Derive the the following shear angle relationship with other cutting angles. 8 5
2 16 Explain the different mechanisms of Tool Wear in detail with neat sketch 10 6
2 17 Write the short note on factor affecting Tool Life. 8 3
2 18 Write the short note on Tool Failure Criteria. 7 3
2 19 Define the Machinability and explain in detail factors affecting Machinability. 8 6
Examples (Based on the Merchant’s Analysis)
2 20 A carbide tipped tool of designation 0-10-5-5-8-90-1 mm (ORS) is used to turn a 7 4
4
steel workpiece of 50 mm diameter with a cutting speed of 240 m/min and feed of
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(ii) Recommended the cutting speed for a desired tool life of 60 min.
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6
Page
CO Q.NO. QUESTIONS M KL
SHORT QUESTIONS
3 1 Define the Term Jig and Fixture. 2 1
3 2 List the Applications of Jig and Fixture. 2 1
3 3 Describe the Meaning of Location related to Jig and Fixture. 2 1
3 4 List the types of Jigs. 2 1
3 5 List the types of Fixtures. 2 1
3 6 State the Advantages of Fixtures. 2 1
3 7 State the Advantages of Jigs. 2 1
3 8 List the Elements of Jigs and Fixtures. 2 1
LONG QUESTIONS
3 9 Define Jig & Fixture. Differentiate between them with suitable example. 8 4
3 10 Mention the different types of jigs? Explain any two with the help of suitable 8 2
sketches.
3 11 Explain the concept of 3-2-1 principle of location for a long cylinder. 8 6
3 12 Explain the Concept of Degree of Freedom of Movement. 7 6
3 13 Explain with neat sketch any two Indexing Methods used in Jigs and Fixtures 7 6
3 14 Write the short note on i) Pokayoka Concept in Jigs and Fixtures ii) Assembly and 10 3
Inspection fixtures
3 15 Describe the Power work holding devices with their advantages. 7 6
3 16 Explain the principles of Design of Jigs and Fixtures. 8 6
3 17 Write a Short Note on : i) Turning fixture ii) Welding fixture iii) Milling fixture 15 3
3 18 Explain the Design Principles for Location Purposes. 7 6
7 Page
CO Q.NO. QUESTIONS M KL
SHORT QUESTIONS
4 1 List the advantages of CNC Machine. 2 1
4 2 Draw the block diagram of CNC Machine. 2 3
3 2 3
4 Draw the recirculating ball screw.
4 2 1
4 Describe the use of Automatic Tool Changer (ATC).
5 2 4
4 Differentiate CNC from DNC.
6 2 1
4 List the disadvantages of CNC.
7 2 3
4 Write function of following codes.
G33, G02, G71, M06
8 2 3
4 Write function of following codes.
G97, G94, M03, M00
LONG QUESTIONS
9 Write the short note on: (i) CNC axes and drives (ii) Automatic Tool Changer (ii) 15 3
4
Automatic Pallet Changer
10 Explain the types of control system with neat sketches. 8 6
4
11 Explain the principle and block diagram of machining center. State its advantages 8 6
4
and disadvantages.
12 Differentiate between open loop and close loop system. 7 4
4
13 Differentiate between subroutine and canned cycle. 6 4
4
14 Write a short note on Word Address Format in CNC Programming. 7 3
4
15 Describe the Procedure to Write Manual Part Programming in detail. 7 4
4
16 Write a manual part program to finish the stepped shaft in Ø 40 mm section as 7 4
4
shown in Fig. 4.1. Assume spindle speed as 350 rpm and feed rate 0.4 mm/rev.
Fig. 4.1
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Fig. 4.2
16 Write a manual part program for finishing a forged component as shown in 7 4
4
Fig.4.3 .Assume speed 300 rpm and feed 0.4 mm/rev. Assume 1 mm material is to
be removed radially from external diameter.
Fig.4.3
17 Write a part program for the component as shown in Fig.4.4.Assume that the 7 4
4
spindle speed 500 rpm and feed is 0.3 mm/rev.
9
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Fig.4.4
Fig.4.5
4 19 Write a CNC program for manufacturing component shown in Fig. 4.6 from a 100 8 4
mm long cylindrical component of 80 mm diameter.
Fig. 4.6
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Fig. 4.7
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CO Q.NO. QUESTIONS M KL
SHORT QUESTIONS
5 1 List the Non-conventional Machining Processes. 2 1
5 2 State the Advantages of Non-conventional Machining Processes. 2 1
5 3 State the Limitations of Non-conventional Machining Processes. 2 1
5 4 List the Applications of Non-conventional Machining Processes. 2 1
5 5 Define: LASER. 2 1
5 6 Sketch the EDM Process. 2 1
5 7 Sketch the ECM Process. 2 1
5 8 Sketch the AJM Process. 2 1
5 9 Sketch the USM Process. 2 1
5 10 Sketch the LBM Process. 2 1
LONG QUESTIONS
5 13 Write a short note on Chemical Machining. 7 3
5 14 Explain USM Process with its advantages, limitations, and applications. 8 6
5 15 Describe EDM Process with its advantages, limitations, and applications. 8 6
5 16 Explain LBM Process with its advantages, limitations, and applications. 8 6
5 17 Explain AJM Process with its advantages, limitations, and applications. 8 6
5 18 Describe ECM Process with its advantages, limitations, and applications. 8 6
5 19 Compare ECM and EDM process. 7 4