Enrolment No.

/Seat No_____________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER–VI (NEW) EXAMINATION – SUMMER 2024
Subject Code:3161922 Date:24-05-2024
Subject Name:Advanced Manufacturing Processes
Time:10:30 AM TO 01:00 PM Total Marks:70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.
MARKS

Q.1 (a) Explain the importance of Advance Manufacturing Processes in industry 03

(b) Discuss application of Electric Discharge Machining (EDM) and Electron Beam 04
Machining (EBM)
(c) Write classification of Unconventional Machining Processes in detail. 07

Q.2 (a) Write comparison between Abrasive Jet Machining (AJM) and Abrasive Water 03
Jet Machining (AWJM)
(b) Explain the effect of process parameters on MRR in AJM Process 04
(c) Explain with sketch the principal of operation, mechanism of metal removal of 07
Laser Beam Machining (LBM). Also write advantage, disadvantages and
application of Laser Beam Machining.
OR
(c) Enlist the process parameters of Electrochemical Machining (ECM) process and 07
discuss the effect of any two process parameters on material removal rate.
Q.3 (a) What is Plasma Arc Machining (PAM)? Explain mechanism of the metal removal 03
(b) What is LASER? explain types of Lasers with their properties. 04
(c) Explain Electro Chemical grinding (ECG) Process in detail with neat diagram 07
OR
Q.3 (a) State any four essential requirements of dielectric fluid used in EDM 03
(b) What is the keyhole? What is the mechanism of keyhole formation? 04
(c) Draw schematic diagram of Ultrasonic Machining (USM) and explain its element 07
of process, application and limitation.
Q.4 (a) Write difference between Additive, Subtractive and Formative Manufacturing. 03
(b) “Rapid prototyping processes having short product development cycle compared 04
to conventional processes” Evaluate the statement.
(c) Describe the Stereo Lithography Systems with neat sketch. 07
OR
Q.4 (a) Write disadvantages of Rapid Prototyping. 03
(b) Write application of Laminated Object Manufacturing (LOM) processes 04
(c) Explain Fused Deposition Modelling (FDM) Process in detail with their 07
advantages, disadvantages, and applications.

Q.5 (a) Write Advantages of Filament Winding. 03

(b) List glass forming process. Explain any one in details. 04
(c) Explain Spray Lay-Up Process in detail with neat diagram. 07
OR
Q.5 (a) Draw Process Flow Diagram for Glass Manufacturing. 03
(b) Write the desired properties of Matrix. 04
(c) Explain with sketch vacuum-bag moulding process. Give advantages and 07
limitations of it.
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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER–VI (NEW) EXAMINATION – SUMMER 2023
Subject Code:3161922 Date:14-07-2023
Subject Name:Advanced Manufacturing Processes
Time:10:30 AM TO 01:00 PM Total Marks:70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.

MARKS
Q.1 (a) What are the advantages of non-conventional machining 03
processes over conventional machining processes?
(b) What are the different modes of operation of plasma torches? 04
Explain any one.
(c) List and explain the various factors to be considered for selecting 07
machining processes.

Q.2 (a) What are the requirements of dielectric fluid in EDM? Mention 03
any two dielectric fluids used in EDM process.
(b) What is ultrasonic machining? Explain the ultrasonic machining 04
process with a schematic diagram.
(c) With a neat sketch, explain the principal of water jet machining. 07
OR
(c) Find out the approximate time required to machine a hole of 07
diameter 6 mm in a Tungsten carbide plate. (Flow strength of
work material 6.9x109 N/mm2) of thickness equal to one and half
time of hole diameter. The mean abrasive grain size is 0.015 mm
diameter. The feed force is equal to 3.5 N.
The amplitude of tool oscillations is 25 micron. And the frequency
is equal to 25 KHz. The tool material is copper having flow
strength 1.5x109 N/mm2. The slurry contains one part of abrasives
to one part of water. Take the values of different constant as
k1=0.3, k2=1.8x10-6 in SI Units and K3=0.6 and abrasive slurry
density=3.8 gm/cm3. (Use grain hammering model)

Q.3 (a) What are the various elements of electrochemical machining 03

process? Explain.
(b) What is insulation to the ECM tool? Why is it required? Explain. 04
(c) In chemical milling operation on a flat mild steel plate, it is 07
desired to cut an ellipse-shaped pocket to a depth of 10 mm. The
semi axes of the ellipse are, a = 225 mm and b = 150 mm. A
solution of hydrochloric and Nitric acids will be used as the
etchant.Determine (1) Metal removal rate in mm3/hr. (2) Time
required to etch to depth and (c) Required dimensions of the
opening in the cut and peel maskant required to achieve the
desired pocket size on the part.(Take Etch Factor = 2)
OR
Q.3 (a) What is plasma arc machining? Explain mechanism of the metal 03
removal.
1
 (b) With a sketch, explain the principal of EBM. 04
(c) Explain with sketch the principal of operation, mechanism of 07
metal removal of laser beam machining. Also write advantage,
disadvantages and application of laser beam machining.

Q.4 (a) Define STL file format.What are the issues associated with STL 03
file formate?
(b) Explain photo-polymerization phenomenon of stereo lithography 04
systems.
(c) Explain with sketch Fusion Deposition Modeling (FDM) 07
principle, process parameter and applications.
OR
Q.4 (a) What are the difference between STL, OBJ and AMF file 03
Formats?
(b) List down five most commonly used polymers in Additive 04
manufacturing. Explain their advantages and limitations.
(c) Explain Laminated Object Manufacturing (LOM) principle, 07
process parameter and applications.

Q.5 (a) Write glass compositions and its properties. 03

(b) List glass forming process. Explain any one in details. 04
(c) Explain with sketch hand-Lay up process. Give advantages and 07
limitations of it.
OR
Q.5 (a) Give classification of composites material. 03
(b) Explain phase transformation in glass during solidification. 04
(c) Explain with sketch vacuum-bag moulding process. Give 07
advantages and limitations of it.

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2
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER–VI (NEW) EXAMINATION – SUMMER 2022
Subject Code:3161922 Date:10/06/2022
Subject Name:Advanced Manufacturing Processes
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.
MARKS
Q.1 (a) What do you mean by unconventional machining processes? Give 03
any two examples of mechanical energy based unconventional
machining processes.
(b) Write any four specific applications of glass. 04
(c) Classify the composite materials and give example for each group. 07

Q.2 (a) Enlist the three applications of laser beam machining (LBM) 03
process.
(b) Demonstrate the working principle of Electric Discharge Machining 04
(EDM) process through sketch.
(c) Enlist the process parameters of Electrochemical Machining (ECM) 07
process and discuss the effect of any two process parameters on
material removal rate.
OR
(c) Through the sketches explain the effect of any three process 07
parameters of plasma arc machining (PAM) process on material
removal rate.

Q.3 (a) Write any three specific applications of rapid prototyping processes 03
(RP).
(b) Distinguish between chemical machining and electrochemical 04
machining.
(c) Describe the Stereo Lithography Systems with neat sketch. 07
OR
Q.3 (a) Write the any three applications of Fusion Deposition Modelling. 03
(b) “Rapid prototyping processes having short product development 04
cycle compared to conventional processes” Evaluate the statement.
(c) Describe the Laminated Object Manufacturing with neat sketch. 07

Q.4 (a) Enlist any three raw materials used to manufacture the glass. 03
(b) Classify the RP processes based of source of energy used. 04
(c) Discuss the advantage and disadvantages of thermal jet printer 07
processes.
OR
Q.4 (a) Explain the terms Glass and Glassy State. 03
(b) Appreciate any four advantages of Resin Transfer Molding (RTM) 04
process.
(c) Write the short note on any one glass forming processes. 07

Q.5 (a) Write the types of glass furnaces. 03

1
 (b) Discuss the properties of glass. 04
(c) Explain Pultrusion process in detail with neat diagram. 07
OR
Q.5 (a) Define the composite material with any two examples. 03
(b) Determine the important process parameters of Spray Lay-Up. 04
(c) Summarize the polymer matrix composites in context of strength 07
and stiffness compared to polymers

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2
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER–VI (NEW) EXAMINATION – WINTER 2023
Subject Code:3161922 Date:13-12-2023
Subject Name: Advanced Manufacturing Processes
Time:02:30 PM TO 05:00 PM Total Marks:70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.
MARKS

Q.1 (a) Write classification of Unconventional Machining Processes 03

(b) write application of Electron beam Machining (EBM) and Laser Beam 04
machining.
(c) Explain Electric Discharge Machining (EDM) in detail with neat diagram 07
and its working Principle.

Q.2 (a) Application of Wire cut EDM. 03

(b) Discuss Process parameters and its effect of Ultrasonic Machining 04
(USM).

(c) Explain Abrasive Jet Machining (AJM) Process in detail with neat 07
diagram.
OR
(c) Explain Chemical machining Process in detail with neat sketch. 07
Q.3 (a) Application of Electro - Chemical machining 03
(b) Write process parameter and its effect on MRR and surface finish of 04
EDM process.
(c) Explain Electro Chemical grinding (ECG) Process in detail with neat 07
diagram.
OR
Q.3 (a) Write history of RP systems 03
(b) Benefits of Resin Transfer Moulding (RTM) 04
(c) Explain Water Jet Machining (WJM)Process in detail with neat 07
sketch.
Q.4 (a) What is Prototyping? Enlist advantages of Rapid Prototyping 03
(b) Write application of LOM processes 04
(c) Explain Stereo lithography process in detail with neat sketch. 07
OR
Q.4 (a) Write a note on 3D Printer. 03
(b) Give the classification of Rapid Prototyping processes 04
(c) Explain Fused Deposition Modelling process in detail with neat sketch. 07
Q.5 (a) Write Glass Compositions and its Properties 03
(b) Discuss Glass Forming Processes 04
(c) Explain any Glass process and write Application of Glass 07
OR
Q.5 (a) Write Advantages of Filament Winding. 03
(b) Classification of composites 04
(c) Explain Wet/Hand Lay-up Process in detail with neat diagram 07

*************

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER– VI (NEW) EXAMINATION – WINTER 2021
Subject Code:3161922 Date:04/12/2021
Subject Name:Advanced Manufacturing Processes
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.

Marks
Q.1 (a) Explain why industry requires Advance Manufacturing Processes? 03
(b) Write comparison between Conventional and Unconventional Machining 04
Processes.
(c) Write classification of Unconventional Machining Processes in detail. 07

Q.2 (a) Write material removal process/mechanism of USM. 03

(b) Write comparison between AJM and AWJM. 04
(c) Explain USM Process in detail with neat diagram. 07
OR
(c) Explain WJM Process in detail with neat diagram. 07

Q.3 (a) Write applications of PBM. 03

(b) Write limitations of EDM. 04
(c) Draw Ishikawa Cause and Effect Diagram of EDM. 07
OR
Q.3 (a) Write main functions of Electrolyte in ECM. 03
(b) Write types of Lasers with their properties. 04
(c) Explain Chemical Milling (CHM) Process in detail with neat diagram. 07

Q.4 (a) Write comparison between additive & subtractive manufacturing. 03

(b) Write advantages and disadvantages of SLA. 04
(c) Explain SGC Process in detail with neat diagram. 07
OR
Q.4 (a) Write advantages of Rapid Prototyping. 03
(b) Write applications of LOM. 04
(c) Explain FDM Process in detail with neat diagram. 07

Q.5 (a) Explain toughened or tempered glass. 03

(b) Write steps of glass manufacturing. 04
(c) Explain Rolled Glass process in detail with neat diagram. 07
OR
Q.5 (a) Explain the composition of Composite Material. 03
(b) Write the desired properties of Matrix. 04
(c) Explain Spray Lay-Up Process in detail with neat diagram. 07

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