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Code: 13A03807
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B.Tech IV Year II Semester (R13) Regular Examinations April 2017
MODERN MANUFACTURING METHODS
(Mechanical Engineering)
Time: 3 hours
Max. Marks: 70
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PART - A
(Compulsory Question)
Answer the following: (10 X 02 = 20 Marks)
- With a neat sketch, explain the working principle of stereo lithography process.
- Enlist the requirement that demands the use of advanced machining process.
- What are the magnetostrictive materials employed in USM?
- Explain any three parameters on working accuracy and metal removal rate in AJM.
- Explain the process variables in ECM process.
- What are the limitations of Chemical Machining process?
- Write down the process characteristics of Plasma Arc Machining.
- Explain the working principle of Wire cut EDM process.
- What are the gases commonly used on laser and explain the characteristics of laser beam?
- What are the advantages and limitations of a EBM process?
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PART - B
(Answer all five units, 5 X 10 = 50 Marks)
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UNIT - I
- (a) Explain the need of modern manufacturing methods.
(b) Give a short note on Precision and Lean manufacturing.
OR - (a) Write the classification of Rapid prototyping methods.
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(b) With a neat sketch explain the working of Fused Deposition Method and explain its various applications of it.
UNIT - II
- Explain the mechanics of metal removal and process parameters of Ultrasonic Machining process and also give their applications, limitations.
OR - With a neat sketch explain the construction and working of WJM system and also explain their process variables and applications.
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UNIT - III
- Give a brief note on economic aspects of ECM and also explain their Metal removal rate, process of it.
OR - (a) Explain the principle of metal removal in maskants, etchants and process variable of a chemical machining process.
(b) What are the advantages of chemical machining process?
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UNIT - IV
- (a) With a neat sketch explain the construction and working of an Electric Discharge Grinding process.
(b) Explain the choice of parameters for improved surface finish and accuracy for EDM process.
OR - (a) With a neat sketch explain the principle of metal removal rate in Plasma Arc machining process.
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(b) Describe the process and equipment of Plasma Arc Machining process.
UNIT - V
- Write a short note on process parameters and performance characterization of Laser Beam Machining processes.
OR - With a neat sketch explain the construction and working of an Electron Beam Machining Process and explain the theory of mechanics.
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This download link is referred from the post: JNTU Anantapur B-Tech 4-2 last 10 year question papers 2010 -2020 -All regulation- All branches- 4th Year 2nd Sem
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