ME 2201 Manufacturing Technology Anna University previous year question paper for Mechanical Engineering Nov/Dec exam 2012 ...

ME 2201 Manufacturing Technology Anna University previous year question paper for Mechanical Engineering Nov/Dec exam 2012 ...


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Reg. No. :



Question Paper Code : T3049



B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2009

Third Semester

Mechanical Engineering

ME 2201 MANUFACTURING  TECHNOLOGY I (Regulation 2008)
Time : Three hours                                                                     Maximum : 100 Marks

Answer ALL Questions

PART A (10 × 2 = 20 Marks)

1.       What are the pattern materials?

2.       Explain the term fettling.

3.       What is the application of carburizing flame?

4.       What are the diameter and length of the electrodes available in the market?

5.       Explain the term Extrusion process.

6.       What are the disadvantages of forging processes?

7.       Define Embossing’’.

8.       Write short notes on hydro forming.

9.       Define degree of polymerization.

10.     What is rotational moulding of plastics?


PART B (5 × 16 = 80 Marks)

11.     (a)      (i)       Name the pattern allowances which can be quantitatively specified.
Write brief note on each of them.                                                    (8)

(ii)      Which properties are desirable for a moulding sand for sound casting?
Explain.                                                                                            (8) Or




(b)
(i)

(ii)
Describe the operation of a Cupola furnace for melting cast iron.  (8)

Compare precision investment casting and shell moulding from the


point of process, product and applications.                                      (8)

12.

(a)

(i)

Discuss the filler and flux materials using in Arc welding process. (8)


(ii)
Describe  the  types  of  flames  obtained  in  an  oxy-acetylen gas welding process giving the applications.                                          (8)

Or

(b)
(i)
Explain the TIG and MIG system of welding. Give the application of
each.
(8)
(ii)
Explain   the  resistanc weldin proces givin the  equipment,



parameters controlled and the applications.
(8)

13.

(a)

(i)

How do you compare forged components with cast components?

(8)


(ii)
Explain the types of rolling mills with a neat sketch.
(8)

Or

(b)
(i)
Distinguish between wire drawing and tube drawing with sketches. (8)


(ii)
Explain   wit neat   sketches   of   upsettin an drawing operations.
down
(8)

14.

(a)

(i)

Explain with a sketch the principle of stretch forming.

(8)
(ii)
Washers of 10 mm inside diameter and 20 mm outside diameter are to  be  obtained  from  1mm  thick  sheet  metal.  Sketch  the  tools required.                                                                                          (8)

Or

(b)
(i)
What  is high  energy  forming,  and  in what  form  is  the  principle
applied? Sketch an example of one application.
(8)
(ii)
Explain the principle of metal spinning process with a neat sketch. (8)

15.
(a)
(i)
Discuss the various properties of plastics.
(8)


(ii)
Sketch and explain the injection moulding process.
(8)

Or

(b)
(i)
Why is screw injection  moulding  machine  better than a ram
type


injection moulding machine?
(6)

(ii)
Discuss the processing of thermosetting plastics.
(10)


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2                                                       T 3049

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