MU Mechanical Engineering (Semester 4)
Production Process 2
May 2012
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


Answer in brief any five:-
1 (a) Principles of Jigs and Fixtures.
5 M
1 (b) Distinguish between orthogonal/oblique cuttings.
5 M
1 (c) Type of coolants.
5 M
1 (d) Tool signature.
5 M
1 (e) Application of forging and extrusions.
5 M
1 (f) Methods for reducing cutting force in press working.
5 M

2 (a) Explain the different types of Jigs.
7 M
2 (b) Explain merchants circle in metal cutting operation.
7 M
2 (c) Explain economics of metal cutting.
6 M

3 (a) Explain the different types of clamping and locating devices for jigs and fixtures.
7 M
3 (b) Explain the mechanism of clip formation in metal cutting.
7 M
3 (c) Explain different types of Dynamo meters.
6 M

4 (a) Explain the steps for designing the form tool.
6 M
4 (b) Explain the different types of cutting and forming dies.
8 M
4 (c) Explain the principle of Roll pass design.
6 M

5 (a) Explain the different gear shaping process.
7 M
5 (b) Answer in brief about scrap strip layout.
6 M
5 (c) Define forging & distinguish between open/closed forging processes.
6 M

6 (a) The symmetrical w/p shown in fig is to be made from the cold rolled steel 0.8 mm thick make necessary calculations for designing the drawing die for this part.
10 M
6 (b) Explain the expression for shear plane angle and co-efficient of friction in metal cutting.
6 M
6 (c) Explain Taylor's tool life equation.
4 M

Write short note on any four:-
7 (a) Full proofing in Design of Jigs & Fixtures.
5 M
7 (b) Cutting tool material.
5 M
7 (c) Forging processes.
5 M
7 (d) Classification of presses.
5 M
7 (e) Design of broach tool.
5 M



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