STUPIDSID
Solve any four Q1 (a,b,c,d,e)
1(a)
What is meant by clearance applied to the cutting dies? What are the factors affecting it?
5 M
1(b)
Write the principle of pin locations.
5 M
1(c)
Explain principle and working of LASER beam machining.
5 M
1(d)
What is high speed machining? Write the requirements of high speed machining.
5 M
1(e)
How presses are classified?
5 M
2(a)
Symmetrical cup of diameter 60mm and length 60mm and corner radius 1.5mm is to be drawn from cold rolled steel sheet of thickness 1.5mm. Calculate the blank size, percentage reduction, no. Of draws,
punch and die radius, clearance and drawing pressure. Ultimate tensile strength = 440N/mm2. C=0.7
punch and die radius, clearance and drawing pressure. Ultimate tensile strength = 440N/mm2. C=0.7
10 M
2(b)
Explain following principles for the design of jigs and fixtures.
i) fool proofing
ii) ejectors
iii) clearance
i) fool proofing
ii) ejectors
iii) clearance
10 M
3(a)
What is strip layout? Write factors affecting strip layout? Prepare economical strip layout for the component shown in figure from the sheet of 400mm X1200mm.
!mage
!mage
10 M
3(b)
Explain with neat sketch use of diamond pin.
5 M
3(c)
Explain any two types of quick acting clamps.
5 M
4(a)
With the help of neat skectch explain the hot runner mold. Also write its applications, advantages & limitations.
10 M
4(b)
Explain the principles and working of electro-discharge machining with neat sketch. What are the functions and requirements of di-electric fluids?
10 M
5(a)
Explain use of setting block and ten non in the design of milling fixtures.
7 M
5(b)
With the help of neat sketch explain two plate molds.
7 M
5(c)
What are automatic machines? Write its classifications.
6 M
6(a)
Explain principle and working of ultrasonic machining. List the abrasive used in USM. Also write its applications.
10 M
6(b)
With the help of conceptual model illustrate the concept and enables of agile manufacturing.
10 M
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