To get more 'n' more just vist : www.creativeworld9.blogspot.com
Set No. 1
.c
o
IV B.Tech. I Semester Regular Examinations, November 2010
UNCONVENTIONAL MACHINING PROCESSES
(Mechanical Engineering)
m
Code No: M0327 /R07
Time: 3 Hours
Max Marks: 80
a.
bl
og
sp
ot
Answer any Five Questions
All Questions carry equal marks
*******
1. (a) Explain the factors that should be considered during the selection of an
appropriate unconventional machining process for a given job.
(b) Compare and contrast the various unconventional machining process on the
basis of type of energy employed, material removal rate, transfer media and
economical aspects.
[8]
[8]
Draw a sketch of the general arrangement of an ultrasonic machine and explain [16]
the principle of operation. Write the applications and limitations of USM.
3.
With a neat sketch explain the process of AJM? Explain the process control
[16]
measures to be taken to control quality and MRR.
4.
Explain the process of Electrical Chemical machining with neat sketch and [16]
discuss about influences of process parameters in machining output.
m
sa
dd
2.
xa
[10]
5. (a) Explain the working principle, elements and characteristics of wire EDM.
(b) Explain how the stratified wire works. Also discuss about the recent
[6]
developments in wire EDM.
Explain the construction and working principle of EBM with neat sketch. List
[16]
its advantages and limitations.
w
.e
6.
w
w
7. (a) Discuss the main applications of plasma Cutting systems.
(b) What are the advantages and disadvantages of plasma cutting process?
8.
[8]
[8]
With the help of neat sketch explain the construction, principle of operation and
[16]
applications of Electro stream drill.
1 of 1
To get more 'n' more just vist : www.creativeworld9.blogspot.com
To get more 'n' more just vist : www.creativeworld9.blogspot.com
.c
o
IV B.Tech. I Semester Regular Examinations, November 2010
UNCONVENTIONAL MACHINING PROCESSES
(Mechanical Engineering)
Time: 3 Hours
Max Marks: 80
ot
Answer any Five Questions
All Questions carry equal marks
*******
Explain the reasons for the development of Unconventional machining Process.
Discuss about the criteria recommended in selection of these processes.
sp
1.
Briefly explain the following machining parameters and how they are affecting
the machining performance of USM.
(a)
Frequency of vibration
(b)
Grain diameter
(c)
Applied static load
(d)
Slurry, tool and work material.
a.
bl
og
2.
Explain in detail about AWJM with a sketch and discuss its advantages and
disadvantages.
4.
Explain the principle and process of ECM with sketch and describe the chemical
reaction that takes place in this process.
m
sa
dd
3.
5. (a) Sketch and explain the Electrode feed control mechanism of EDM.
(b) Discuss the factors to be considered for selection of electrode materials.
Discuss about the process capabilities of EBM and the process parameters of
EBM in improving Machining Quality.
.e
xa
6.
Explain the
w
w
7. (a) What is non transferred and transferred mode of plasma arc?
mechanism of material removal in PAM.
(b) Discuss the factors that influence the quality of the cut in PAM.
w
m
Set No. 2
Code No: M0327 /R07
8. (a) With the help of neat sketch explain the process of electro stream drilling.
(b) What are the specific applications of shaped tube electrolytic machining?
Discuss.
[16]
[4x4]
[16]
[16]
[10]
[16]
[8]
[8]
[8]
[8]
1 of 1
To get more 'n' more just vist : www.creativeworld9.blogspot.com
To get more 'n' more just vist : www.creativeworld9.blogspot.com
Set No. 3
Max Marks: 80
sp
Answer any Five Questions
All Questions carry equal marks
*******
ot
Time: 3 Hours
.c
o
IV B.Tech. I Semester Regular Examinations, November 2010
UNCONVENTIONAL MACHINING PROCESSES
(Mechanical Engineering)
m
Code No: M0327 /R07
a.
bl
og
1. (a) Briefly explain the overview of the non traditional machining processes.
(b) Why the nontraditional machining is essential for the industries?
2. (a) Discuss in detail about the methods of generating the ultrasonic characteristics
of the various types of tool holder and tool feed mechanisms in USM.
(b) Briefly discuss the mechanisms involved in material removal by USM.
dd
3. (a) Explain the principle of AJM. Mention some of the specific applications.
(b) Discuss in detail about the AJM process variables that influence the rate of
material removal and accuracy in the machining.
[8]
[8]
[8]
[8]
[8]
[8]
[5]
[6]
5.
[16]
m
sa
4. (a) Describe the chemistry involved in ECM process.
(b) Briefly discuss about the effect of high temperature and pressure of electrolyte
on the ECM process.
(c) Discuss about the economics of ECM.
xa
Describe the wire cut EDM process with neat sketch. List the advantages
and limitations of wire cut EDM.
.e
6. (a) What is laser? Explain how it is used to machine the materials.
(b) Discuss in detail the thermal features and analysis of laser beam machining.
[8]
[8]
[8]
[8]
w
w
7. (a) Briefly explain the various parameters that govern the performance of PAM.
(b) Discuss the general guidelines for designing the plasma torches in PAM.
[5]
w
8. (a) What are the specific applications of shaped tube electrolytic machining? Discuss. [8]
(b) With the help of a neat sketch explain abrasive flow finishing.
[8]
1 of 1
To get more 'n' more just vist : www.creativeworld9.blogspot.com
To get more 'n' more just vist : www.creativeworld9.blogspot.com
Set No. 4
IV B.Tech. I Semester Regular Examinations, November 2010
UNCONVENTIONAL MACHINING PROCESSES
(Mechanical Engineering)
Max Marks: 80
.c
o
Time: 3 Hours
m
Code No: M0327 /R07
ot
Answer any Five Questions
All Questions carry equal marks
*******
Give the complete classification of unconventional machining processes giving the
[16]
distinctive features of each of them.
sp
1.
[8]
3. (a) With a neat sketch explain the process of WJM?
(b) Compare the WJM and AJM in terms of Process capabilities and limitations.
[8]
[8]
a.
bl
og
2. (a) Explain the various factors appearing the material removal rate in ultra
sonic machining process.
(b) With the help of neat sketch describe the process of Ultra sonic machine.
Explain the processes of Electro Chemical Machinery (EC) with a sketch and list
[16]
its applications and advantages.
dd
4.
[8]
m
sa
5. (a) Explain the working principle of EDM with a neat sketch.
(b) List the process parameters in EDM process and state the limitations of
EDM process.
[8]
Discuss about the process parameters of LBM and EBM and its influence in
Machining Quality.
[16]
xa
6.
[8]
w
w
w
.e
7. (a) Describe the working principle and elements of chemical machining. What are the
factors on which the selection of a resist for use in chemical machining?
[8]
(b) What are the specific advantages of using chemical machining over electro
chemical machining? Give some of the practical applications of chemical
machining process.
[8]
8. (a) Discuss magnetic abrasive finishing process.
(b) With the help of neat sketch explain the process of electro stream drilling.
[8]
[8]
1 of 1
To get more 'n' more just vist : www.creativeworld9.blogspot.com