Question Paper: Production Process 2 Question Paper - December 2016 - Mechanical Engineering (Semester 4) - Mumbai University (MU)
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Production Process 2 - December 2016

MU Mechanical Engineering (Semester 4)

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
1(a) List operations which may be performed on a Milling machine and explain any two operations with sketch. 5 marks

1(b) What do you understand from machinability of a material? List any two properties, which have a bearing on machinability. 5 marks

1(c) Compare Gear shaping and Gear shaving processes. 5 marks

1(d) Explain coordinates measuring machine. Explain its application. 5 marks

2(a) Write Part Program using G and M-code for machining external contour as shown in Figure 1 below. Write process plan for a turning operation and an efficient CNC part prgram for the same.
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5 marks

2(b) derive an expression for shear angle in orthogonal cutting in terms of rake angle and chip thickness ratio. 5 marks

2(c) List the various gear cutting porcesses. How are they classified. 5 marks

3(a) With a neat sketch explain different angles associated with drill tool. 5 marks

3(b) Two cutting tools are being compared for a machining operation.
The tool life equation are:
Carbide tool: VT1.6=2850
HSS tool: VT0.6=180 where V is the cutting speed in m/min and T is th e tool life in min. Calculate the cutting speed value which exceeds so that, the carbide tool will provide higher tool life.
5 marks

3(c) Compare Lapping and Honing process. 5 marks

4(a) Give Classification, Selection procedure and applications of drilling Machines. 5 marks

4(b) Explain procedure to estimate cutting forces. 5 marks

4(c) List diffferent types of dynometers and explain with sketch electromagnetic dynamometer. 5 marks

5(a) Design and explain steps involved in Broach tool design. 5 marks

5(b) How do you define tool life? Explain the parameters that control the tool life of a single point cutting tool. 5 marks

6(a) Single point cutting tool geometry. 5 marks

6(b) Types of coolants. 5 marks

6(c) Operations performed on shaping machine (Any five). 5 marks

6(d) Dressing &truing of Grinding wheels. 5 marks

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