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R09 Code No: D0410

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD M.Tech II - Semester Examinations, October/November 2011

COMPUTER AIDED PROCESS PLANNING (CAD/CAM)

Time: 3hours Max. Marks: 60 Answer any five questions

All questions carry equal marks - - -

1.a) Explain the Computer aided process planning design approach using retrieval CAPP system. b) Discuss various benefits of CAPP. [12] 2.a) Explain the automated development of CAPP using part feature recognition. b) Discuss the AI based process planning systems developed in generating CAPP. [12] 3.a) Explain why group technology is important to achieving the integration of CAD and

CAM. b) What are the elements to be considered for reduction of total set-up cost for a particular

sequence? [12] 4. Sate and explain the effect of selecting machining parameters on production rate and cost

of production. [12] 5. Explain tolerance and cost relations for single and multiple manufacturing processes with

graphs. [12] 6. What type of looping facilities are available in CNC machine tools, explain with an

example? [12] 7. Develop a macro for machining hole making operation along a straight line in a CNC

machining centre. [12] 8. Write short note

a) Integration of design and manufacturing tolerances. b) NC tool path generation c) Capacity planning system. [12]

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