Anna University ME2026 Unconventional Machining Processing Nov Dec 2021 Question Paper

Anna University

Question Paper Code : 80820

B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2021. 

Sixth Semester 

Mechanical Engineering 

ME 2026/ME 606 — UNCONVENTIONAL MACHINING PROCESSING 

(Common to Production Engineering/Mechanical and Automation Engineering) 

(Regulations 2008) 

(Also Common to PTME 2026 for B.E. (Part-Time) Sixth Semester-Mechanical 

Engineering – Regulations 2009) 

Time : Three hours Maximum : 100 marks 

Answer ALL questions. 

PART A — (10 x 2 = 20 marks) 

1. How non-traditional machining processes are classified? 

2. Enlist the requirement that demands the use of advanced machining process. 

3. Name any four abrasives used in MM process and mention their recommended use. 

4. What are the applications of USM process? 

5. Name any four electrode materials used in Electrical Discharge Machining process. 

6. List out the applications of wire cut EDM process. 

7. What is meant by maskant? 

8. Mention the applications of ECH. 

9. Name the beam control techniques of EBM. 

10. What is meant by Laser beam drilling? 

PART B — (5 x 16 = 80 marks) 

11. (a) (i) Explain the factors that should be considered during the selection of an appropriate unconventional machining process for a given job. (8) 

 (ii) 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) 

Or 

(b) Non-convention machining process has replaced many convention metal  cutting process, Justify using examples. (16) 

12. (a) (i) Briefly explain the process of abrasive jet machining. (6) 

 (ii) What are the variables that affect the cutting phenomena in AJM process? And also explain the effect of any two variables on MER. 

 (10) 

Or 

(b) (i) Sketch the water jet cutting unit and also explain the mechanism of  jet cutting. (8) 

 (ii) With a neat sketch, explain the working principle of ultrasonic machining process. (8) 

13. (a) (i) Explain the various operating principles involved in Electrical Discharge Machining process. (8) 

 (ii) Discuss any four power circuits used for EDM process. (8) 

Or 

(b) (i) What is flushing in EDM process? Explain about various flushing  techniques. (8) 

 (ii) Explain with a neat sketch, the wire cut EDM process. (8) 

14. (a) Explain the processes of Chemical blanking and Chemical milling with  neat sketches. (16) 

Or 

(b) (i) Describe the process of ECM with a neat sketch. (8) 

 (ii) Describe the process of ECG with a neat sketch. (8) 

15. (a) With a neat sketch, explain the process of LBM along with the effect of  all the process parameters. (16) 

Or 

(b) (i) Explain the principle of PAM with a neat sketch. (8) 

 (ii) Describe the process of EBM with a neat sketch. (8) 

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