STUPIDSID
1 (a)
Derive the Taylor's equation for tool life.
7 M
1 (b)
What are chip breakers? Explain them briefly. If they are not used what adverse effects chip can produce on the work, tool and surroundings?
7 M
2 (a)
What are the different methods of gear manufacturing? List the methods and explain any one.
7 M
Answer any two question from Q2 (b) or Q2 (c)
2 (b)
Prove that tan ϕ=r cos α/(1-r cos α)
7 M
2 (c)
What are crater wear and flank wear? Explain.
7 M
Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a)
Explain Laser beam machining process in detail.
7 M
3 (b)
What are the different types of thread manufacturing processes? Explain with neat sketch.
7 M
3 (c)
Describe water jet machining process with the help of neat sketch. State its advantages and application.
7 M
3 (d)
What are common ejecting mechanisms used in power presses? Describe.
7 M
Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a)
Describe the common bending operations performed on presses.
7 M
4 (b)
Compare the merits and demerits of Turret and Capstan lathes with a conventional engine lathe.
7 M
4 (c)
Explain the principle of "Six point location".
7 M
4 (d)
Explain with the principle of EDM. State characteristics of dielectric fluid.
7 M
Answer any two question from Q5 (a), (b) or Q5 (c), (d)
5 (a)
Explain the different machine tool structures.
7 M
5 (b)
Differentiate between a jig and a fixture. Explain one clamping device.
7 M
5 (c)
Define machinability and explain variables affecting it.
7 M
5 (d)
Describe the methods of punch support.
7 M
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