Question Paper: Production Process 2 Question Paper - Dec 18 - Mechanical Engineering (Semester 4) - Mumbai University (MU)
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Production Process 2 - Dec 18

Mechanical Engineering (Semester 4)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

1. Attempt any Four:

1.a. Classify various Additive Manufacturing Processes.
(5 marks) 11206

1.b. Classify various non-traditional machining processes
(5 marks) 12899

1.c. Specification of grinding wheel
(5 marks) 00

1.d. Describe how a compound and combination die differ from each other.
(5 marks) 00

1.e. Prove that in metal cutting, chip-flow velocity = cutting velocity $\times$ chip thickness coefficient
(5 marks) 00

2.a. What is EDM? Write about its applications, advantages and limitations. Also state the functions and requirements of di-electric fluid.
(10 marks) 00

2.b. State the different sources of heat in metal cutting?
(10 marks) 00

3.a. Explain various sheet metal production process with neat sketches.
(10 marks) 00

3.b. Define jigs and fixtures. Describe the following with neat sketches:

(i) Locators (ii) Clamping devices (any two each)

(10 marks) 00

4.a. While machining steel with a tool of $[0-10-6-6-8-75-1]$ ORS shape following observations were made;

(i) Spindle speed 300 $\mathrm{rpm}$

(iii) Depth of cut 3.5 $\mathrm{mm}$

(ii) Work diameter 40 $\mathrm{mm}$

(iv) Tool feed rate 70 $\mathrm{mm} / \mathrm{min}$

(v) Cut chip thickness 0.55 $\mathrm{mm}$

(10 marks) 00

4.b. Explain Photo Polymerization w.r.t principle of operation, process, advantages and disadvantages. Explain its application in relevance CMET (Tokyo) and 3D systems (US)
(10 marks) 00

5.a. Discuss the geometry and design steps for a broach tool with the help of a diagram
(10 marks) 00

5.b. Discuss in detail various factors affecting the tool life. Two cutting tools are being compared for a machining operation. The tool life equations are: Carbide tool: $VT^{1.8} = 2000$ & HSS tool: $VT^{135}$, where V is the cutting speed in m/min and T is the tool life in min. Calculate the cutting speed value so that the carbide tool will provide higher tool life then HSS tool.
(10 marks) 00

6. Write short notes on:

6.a. Concept and importance of Additive Manufacturing.
(5 marks) 00

6.b. Laser beam machining
(5 marks) 00

6.c. Lathe tool dynamometer
(5 marks) 00

6.d. Diamond pin locator
(5 marks) 00

6.e. Single point cutting tool geometry in ASA system
(5 marks) 00

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modified 3 months ago by gravatar for Ankit Pandey Ankit Pandey70 written 3 months ago by gravatar for Yashbeer Yashbeer160
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