Cc F192056 Pages:2

Reg No.:__ Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

SIXTH SEMESTER B.TECH DEGREE EXAMINATION(S), DECEMBER 2019

Course Code: ME306
Course Name: ADVANCED MANUFACTURING TECHNOLOGY

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any three full questions, each carries 10 marks. Marks
1 a) How carbonyls are useful in powder metallurgy? (5)
b) Differentiate between open loop and closed loop CNC with sketches (5)
2 Draw a PLC ladder logic diagram to get the reciprocating motion of a punching machine (10)

using following sequential operations. One of the two motors operates when power is
supplied. Motor drives the punch to one side. When it completes the required movement
in one direction, a limit switch detect the position of the punch. First motor is get
deactivated. Second motor starts and moves the punch to the opposite direction. When it
completes required movement in opposite direction, a second limit switch detects the
position of the punch .Second motor is get deactivated and first motor is started again
and the process continues so as to get a continuous reciprocating motion. Also draw the

input and output diagrams.

3 a) Explain the working of DDA integrator with schematic diagram and flow chart. (6)

0) A DDA contains 8 bit registers. The value of its ‏م‎ register is constant and P=150 andthe (4)

clock frequency is 10240pps. Calculate the output frequency of DDA
4 Write a manual part program for the given work shown in figure , material thickness is_ (10)

20mm.Show the tool movement path and write the description of blocks (all dimensions

are in mm)

Page 1 of 2