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Anna University Question Paper Code : 11049
B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2014:
Seventh Semester
Mechanical Engineering
080120043 — DESIGN OF JIGS, FIXTURES, PRESS TOOLS AND MOULDS
(Regulation 2008)
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PART A — (10 x 2 = 20 marks)
1. Which type of work pieces often need more than six locating points?
2. What are the important properties required for clamps?
3. What are liner bushes?
4. What are the main types of boring fixtures?
5. Differentiate a compound die and a combination die
6. Why back-pin die sets are preferred for lateral feeding?
7. State the advantages of V bending.
8. What is ironing effect in drawing?
9. What is the use of chase in compression moulding?
10. State any two factors that decide the operating temperature of a mould.
PART B — (5 x 16 = 80 marks)
11. (a) Write short notes on the following locators : (i) V-locator (4)
(ii) Profile locator (4)
(iii) Diamond pin (4)
(iv) Equalising jack. (4)
Or
(b) (i) Explain the various principles involved in clamping. (10)
(ii) Write a note on clamping force. (6)
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