Question
Vernon Inc. has analyzed the setup time on its computer-controlled lathe. The setup requires changing the type of fixture that holds a part. The average
Vernon Inc. has analyzed the setup time on its computer-controlled lathe. The setup requires changing the type of fixture that holds a part. The average setup time has been 140 minutes, consisting of the following steps:
Turn off machine and remove fixture from lathe | 15 | minutes |
Go to tool room with fixture | 15 | |
Record replacement of fixture to tool room | 18 | |
Return to lathe | 20 | |
Clean lathe | 20 | |
Return to tool room | 20 | |
Record withdrawal of new fixture from tool room | 12 | |
Return to lathe | 15 | |
Install new fixture and turn on machine | 5 | |
Total setup time | 140 | minutes |
A. A company plans to setup a machine to increase the productivity. The average setup time is 140 minutes. Do you think the management needs to minimize the setup time. Identify the reason that supports the answer.
- Yes
- No
a
Reason:
- The setup time is not a concern of the company as it is not related to productivity of the company.
- The setup time should be considered because long setup time leads to increased economic cost of the setup.
- The cost incurred for setup can be ignored as it is related to machinery.
- Long setup cost can be recovered as depreciation.
b
B. A company plans to setup a machine to increase the productivity. The average setup time is 140 minutes. The company wishes to control the setup time. Identify the statement that suits the given situation.
- Identify the wait time and non-value-added time and eliminate that with effective planning so that the setup time can be reduced.
- Identify the machine that has less setup time.
- Identify the laborers are contributing less to the setup process and eliminate them from the process.
- None of the above.
a
C. How much time would be required for a setup, using your suggestion in (b)? $ minutes
Feedback
a. Review the relationship of batch size to setup effort spent preparing an operation or process for a production run.
b. Recall that a setup is the effort spent preparing an operation or process for a production run. If setups are long and costly, the batch size for the related production run is normally large in order to spread this cost.
Please note that I have all the answers excpt the last one. Please show how you got your answer.
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