Reg. No
Question Paper Code: 82108451 K.S.K COLLEGE OF ENGINEERING AND TECHNOLOGY B.E./B.TECH DEGREE MODEL EXAM-II MECHANICAL ENGINEERING Fourth Semester ME8451-MANUFACTURING TECHNOLOGY II (Regulation 2017) Year / Sem: II/ IV Date: 20.03.2019
Maximum: 100 Marks Duration : 3 hrs
Answer All Questions. PART A – (10 x 2 = 10 Marks) 1. What are the functions of chip breakers? 2. Compare orthogonal and oblique cutting 3. Distinguish between capstan lathe from turret lathe 4. State the various parts mounted on the carriage. 5. Mention any four shaper specifications. 6. State the uses of planer. 7. How is the grinding wheel designated? 8. List the gear generating process. 9. Define subroutine. 10. What is meant by tool magazine in a CNC machine? PART B – (5 x 13 = 65 Marks) 11. (a) (i) Enumerate the essential requirements of a tool materials. (ii) Discuss the various type of cutting fluids.
(6) (7)
(or) (b) What is the use of chip breakers? Discuss the various type of chips produced during the metal machining process. (13) 12. (a) (i) Explain the working principle of turret lathe (ii) Discuss any two special attachments on lathe
(6) (7)
(or) (b) (i)Explain any four work holding devices that can be used on lathe. (ii) Describe a single spindle automatic lathe.
(6) (7)
13. (a)
(i) List out the various milling operations.
(4)
(ii)Describe the working principle of column and knee type milling machine with a neat sketch. (9) (or) (b) (i) Write any four difference between shaper and planer.
(6)
(ii) Explain with neat sketch past and loose pulley’s quick return mechanism of planer table.
(7)
14. (a) (i) Classify the grinding machine (ii)Explain the working of centreless grinding process
(6) (7)
(or) (b) (i)Describe two types of lapping operations (ii) Explain the principle of operations of gear hobbing process 15.(a)
(6) (7)
Describe with neat sketch various step in computer assisted part programming (13) (or)
(b) Define CNC and DNC with a help of a neat diagram explain the working of NC machine tool. (13) PART C – (1 x 15 = 15 Marks) 16.(a) What are the various methods used for gear finishing? Discuss any two methods. (15) (or) (b) Compare plain and universal milling machine (AND) .Enumerate with neat sketch of gear shaping. (15)