Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech ME (Mechanical Engineering) 2020 March 4th Sem Manufacturing Processes II Previous Question Paper
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ME) (2012 Onwards) (Sem.?4)
MANUFACTURING PROCESSES-II
Subject Code : BTME-405
M.code : 59133
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Answer briefly :
a) Define Machinability.
b) Name two forging defects and give their reasons and remedies.
c) Enumerate the process variables for wire drawing process.
d) Differentiate between piercing and blanking.
e) Explain the working principle of high energy rate forming processes.
f) What do you understand by drawing?
g) Discuss the working principle of soldering.
h) Differentiate between shaper and a planer.
i) Differentiate between truing and dressing of grinding wheel.
j) Explain the classification of broaching machines.
SECTION-B
Q2 Explain the working principle of rolling process. Explain various types of rolling
processes giving neat sketches.
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1 | M - 5 9 1 3 3 ( S 2 ) - 2 2 6 7
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(ME) (2012 Onwards) (Sem.?4)
MANUFACTURING PROCESSES-II
Subject Code : BTME-405
M.code : 59133
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Answer briefly :
a) Define Machinability.
b) Name two forging defects and give their reasons and remedies.
c) Enumerate the process variables for wire drawing process.
d) Differentiate between piercing and blanking.
e) Explain the working principle of high energy rate forming processes.
f) What do you understand by drawing?
g) Discuss the working principle of soldering.
h) Differentiate between shaper and a planer.
i) Differentiate between truing and dressing of grinding wheel.
j) Explain the classification of broaching machines.
SECTION-B
Q2 Explain the working principle of rolling process. Explain various types of rolling
processes giving neat sketches.
2 | M - 5 9 1 3 3 ( S 2 ) - 2 2 6 7
Q3 Explain the construction and working of forging press giving a neat sketch.
Q4 Explain the methods of obtaining metal powders used in powder metallurgy process with
the help of neat sketches.
Q5 Explain the cutting forces encountered in machining operations. How these cutting forces
can be measured?
Q6 Explain the construction and working principle of surface grinding machine giving
appropriate line diagram and also explain its applications.
SECTION-C
Q7 a) Describe the press and die setup. Also explain the forging operations using
progressive and combination dies giving neat sketches.
b) Explain the working of horizontal milling machine giving a neat sketch and describe
components of horizontal milling machine.
Q8 a) What is the need of using coolants and lubricants in machining operations? Describe
the functions and properties of various lubricants used in machining operations.
b) Describe the characteristic features, advantages, disadvantages of various types of
cutting tool materials used in machining operations.
Q9 a) A tool life test of HSS/ Carbide tool material used to cut a special Die Steel of
275 BHN gave the following results.
Spindle speed 372 329 258
L (mm) 38.2 82.3 380
Here the spindle speed units are (rev/min) and (L) is the length of travel (mm) of the
lathe carriage up to the failure of each tool. Assume the work piece diameter as
0.090 m, feed rate as 0.5 mm/rev and depth of cut as 0.95 mm. Calculate the
constants of tool life equation VT
n
=C. Determine the tool life to be expected when
cutting at 135 rpm. Also specify whether the tool material is HSS or Carbide.
b) Explain the nomenclature of grinding wheel giving brief description of various
elements.
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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This post was last modified on 21 March 2020