LinkedIn Insight Machining Processes | Nagpur University | Summer-2019 - Grad Plus

Machining Processes | Nagpur University | Summer-2019

B.E. (Mechanical Engineering) Fourth Semester (C.B.S.)

Machining Processes

NRT/KS/19/3371
Time : Three Hours
Max. Marks : 80


Notes : 1. All questions carry marks as indicated.
2. Solve Question 1 OR Questions No. 2.
3. Solve Question 3 OR Questions No. 4.
4. Solve Question 5 OR Questions No. 6.
5. Solve Question 7 OR Questions No. 8.
6. Solve Question 9 OR Questions No. 10.
7. Solve Question 11 OR Questions No. 12.
8. Due credit will be given to neatness and adequate dimensions.
9. Illustrate your answers whenever necessary with the help of neat sketches.

1. a) What are the basic elements of any machining operation ? Differentiate orthogonal and oblique cutting. [06 M]

b) Explain with neat sketch tool geometry of single point cutting tool. Also discuss its nomenclature. [07 M] 

OR

2. a) How do you define tool life ? Explain the parameters that affect on tool life. [07 M] 

b) What are various types of chips ? Explain the factors which favors formation of continuous chips. [06 M]

3. a) With the help of neat sketch explain the construction & principal parts of simple lathe. [07 M] 

b) Explain thread cutting operation performed on lathe. [06 M]

OR

4. a) Explain with the help of neat sketch working of back gear mechanism in lathe. [07 M] 

b) What are various tapes turning methods used for tapes turning ? Explain any one in details. [06 M]

5. a) Explain with neat sketch whit worth quick return mechanism of a shaper. [07 M] 

b) Explain with neat sketch principal parts of a standard shaper. [07 M] 

OR

6. a) What are various types of planar. Explain any one with neat sketch. [07 M] 

b) Compare shaper, planar and slater. [07 M] 

7. a) Explain with neat sketch main parts of horizontal milling machine. [07 M] 

b) Explain with neat sketch up milling and down milling. [06 M]

OR

8. a) Enlist various milling operations. Also Explain face milling operation. [07 M] 

b) Classify milling machine. Differentiate between plain and universal milling machine. [06 M] 

9. a) Explain principle of working of centerless grinding. Also discuss various feeding methods. [07 M] 

b) List out various abrasives used in manufacturing of Grinding wheels. [06 M] 

OR

10. a) Explain with sketch surface grinder & its working. [07 M] 

b) Explain Honing, Lapping and metal spraying process in short. [06 M] 

11. a) Explain with neat sketch universal radial drilling machine. [07 M]

b) Enlist various drilling machine operations. Explain with neat sketch counterboring and countersinking. [07 M] 

OR

12. a) Explain with neat sketch construction and working of horizontal boring machine. [07 M] 

b) What is broaching ? Explain various broaching operation with neat sketch. [07 M]

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