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The document discusses various production planning and scheduling topics like product planning, process planning, value analysis, machine balancing, computer aided process planning, minimum-cost batch size, process capabilities, Gantt charts, aggregate run-out method of batch scheduling, line-of-balance method, perpetual scheduling, job sequencing to minimize processing times, and choosing between gear shaping and gear hobbing based on order quantity and likelihood of repeat.

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nivasmechanical
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38 views1 page

1

The document discusses various production planning and scheduling topics like product planning, process planning, value analysis, machine balancing, computer aided process planning, minimum-cost batch size, process capabilities, Gantt charts, aggregate run-out method of batch scheduling, line-of-balance method, perpetual scheduling, job sequencing to minimize processing times, and choosing between gear shaping and gear hobbing based on order quantity and likelihood of repeat.

Uploaded by

nivasmechanical
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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a) Describe the problems due to the lack of product planning.

b) What are the main steps followed during process planning?


Describe the various steps involved in the value analysis.
What do you understand by machine balancing? Also explain the effect of balancing on
number of machines required with an illustration.
Discuss with a neat sketch about computer aided process planning (CAPP).
What is meant by minimum-cost batch size? Also derive an expression for it.
Discuss the analysis of process capabilities in a multi-product system.
What are Gantt charts? Explain their types? How are they constructed?
a) Describe in detail about the aggregate run-out method of batch scheduling.
b) Explain in detail about the line-of-balance method.
What is perpetual scheduling? Explain the steps in making perpetual schedule.
Sequence the following jobs to minimize the processing times on the two machines. Also
compute the idle times of the machines.
Job: 1 2 3 4 5 6
Machine 1 5 9 4 7 8 6

Machine 2 7 4 8 3 9 5

A gear manufacturer has gear shaper and gear hobbers. The gear can be processed on gear
shaper as well as gear hobber. The following information is given. Which of the two
machines will you choose to do the job if the order quantity is (i) 1000 numbers and order is
unlikely to repeat, and (ii) 1000 numbers and the order is likely to repeat for 3 years?
Gear shaper Gear hobber

Machine time per piece (min) 12 04

Machine cost per hour (Rs.) 45 120


Set up time (min) 60 90
Tooling up cost (Rs.) 400 2000

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