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D1080 Pages: 3

Explain the difference between open and closed die forging techniques.

Explain the aspect ‘Degree of freedom of movement of a free body’ with special
reference to location of workpieces

What is the principle of ‘Six-point location’? Explain with suitable sketches

Select a locating system to best locate the part shown in Figure A.

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Figure A.

What do you understand by foolproofing? Explain with an example
What are the different types of strap clamp? Give sketches
PART C
Answer any four questions. Each question carries 10 marks.
Describe with neat sketch the deep-drawing process. What defects can occur in an

improperly deep drawn product?
Discuss with neat sketch the working of metal spinning process

Why is it necessary to provide clearance between the punch and die in a shearing
operation? Give reasons

Write a note on ‘‘bending’’ of sheet metal. What is spring back and how is its
effect eliminated?
Bring out the differences between punching and blanking.

What is the Guerin process? How does the Guerin process reduce the cost of
tooling in a drawing operation?

Define heat affected zone? What is its importance in producing a crack free weld?
What are the factors that affect weldability

Sketch the three types of gas welding flames and give differences between them.

With a neat sketch explain the construction and working of Carbon Arc Welding

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