MORE IN Production Process 2
MU Mechanical Engineering (Semester 4)
Production Process 2
December 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Attempt any four:
1 (a) Explain Gear hobbing process of gear manufacturing.
5 M
1 (b) Differentiate orthogonal and oblique cutting.
5 M
1 (c) Write short note on Tool holders and inserts
5 M
1 (d) Discuss cutting fluids.
5 M
1 (e) Prove that Vr=Vc.r
5 M

2 (a) Sketch the internal round broach and write briefly on the following elements
i) Rake and relief angles
ii) Depth of cut per tooth
Width of land
10 M
2 (b) Prepare the CNC part program for matching of workpiece shown in figure below for Ï•25 size bar stock.

10 M

3 (a) Discuss the assumption made in Merchant's theory. Derive the relationship $$2\phi + \beta = \dfrac {\pi} {2}$$
10 M
3 (b) State various vertical machining centres. Describe any one in detail.
10 M

4 (a) Write note on two dimensional Tool dynamometer.
5 M
4 (b) Describe carbides and ceramic as cutting tools.
5 M
4 (c) Derive an expression of tool life for minimum cost criteria in metal cutting.
10 M

5 (a) A work piece of 38 mm diameter is being turned on a lathe with tool having a rake angle of 33° and period of 0.15 mm/rev. The length of chip over one revolution of workplace is 72 mm. The tangential force is 410 N and feed force is 170 N calculate:
(a) Coefficient of friction on rake force
(b) Thickness of chip
(c) Angle of shear
(d) Velocity of shear
10 M
5 (b) Write steps for designing form tool by graphical method.
Design and draw circular form tool having.
Rake angle =10°
Relief angle = 6°.
10 M

Write short notes on (any four):
6 (a) Lapping and honing
5 M
6 (b) Tool wear
5 M
6 (c) Geometry of milling cutter
5 M
6 (d) Cutting fluids
5 M
6 (e) Co-ordinate measuring machine.
5 M

More question papers from Production Process 2