PTU B.Tech Mechanical Engineering 6th Semester May 2019 71252 NON TRADITIONAL MACHINING Question Papers

PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester Mechanical Engineering (MECH)

Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ME) (E-I 2011 Onwards) (Sem.?6)
NON-TRADITIONAL MACHINING
Subject Code : DE/ME-2.0
M.Code : 71252
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt any T WO questions.


SECTION-A
1)
Answer briefly :

a) State limitations of conventional machining process.

b) What do you mean by computer integrated manufacturing?

c) What are the main applications of abrasive flow machining?

d) What is chemical machining?

e) List the advantages of ECM.

f) What are the main functions of dielectric fluid used in EDM?

g) What is hot machining?

h) Name various dielectric fluid flushing methods.

i) What are the main electrolytes used in ECM?

j) Write two safety precautions for plasma arc machining.
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SECTION-B
2)
Give the classification of non-conventional machining processes.
3)
What are the main process elements of water jet machining?
4)
Explain with suitable diagrams the working principle of electrochemical machining.
5)
Discuss the mechanism of material removal in laser beam machining process.
6)
What are the advantages of hybrid machining processes? Discuss any one type of hybrid
machining process.

SECTION-C
7)
a) Explain the mechanism of metal removal in electric discharge machining process.

b) What factors should be considered while selecting EDM electrode material?
8)
Describe principle, process parameters, capabilities and applications of Ultrasonic
machining.
9)
Write short note on Any Two of the following :

a) Principle of abrasive flow machining.

b) Electrochemical honing.

c) Generation of electron beam.





NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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