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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIFTH SEMESTER B.TECH DEGREE EXAMINATION, DECEMBER 2018
Course Code: ME303
Course Name: MACHINE TOOLS AND DIGITAL MANUFACTURING (IE, ME)

Max. Marks: 100 Duration: 3 Hours
PART A
Answer any three full questions, each carries 10 marks. Marks
1 9) With the help of a neat diagram explain the nomenclature of a single point (5) cutting tool.
b) Discuss about the basic mechanism of chip formation. (5)
2 9) With a neat diagram discuss merchant force circle. (5) b) The following equation for
tool life has been obtained for a certain tool material. (5)
VT 0.13 . 10.6. 603 ಎಲ್ಲಿ
A 60 min tool life was obtained using the following cutting conditions
V = 40m/min, f = 0.25mm, d= 2.0mm
Calculate the effect of each parameter on tool life if speed, feed and depth of cut
are increased individually by 25%.
3 9) List out the necessary prerequisites before performing turning operations on a (4) lathe.
b) Illustrate different methods for taper turning with neat diagrams. (6)
4 9) What are the advantages of radial drilling machine over other conventional (4) drilling
machines?
b) Explain with neat sketch the following drilling machine operations a) (6) Tapping b)
Trepanning c) Counter-sinking
PART B
Answer any three full questions, each carries 10 marks.
5 9) Discuss the importance of Clapper box in a shaping machine. (4) b) Write the
fundamental difference between a planer & a Shaper. (6)
6 a) Describe different work holding devices used in a shaper. (4)
b) Describe different types of planer machines. (6)
7 a) Explain any three milling operations performed on a Horizontal milling machine (6)

& Vertical milling machine.

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