Reduce Setup Time Hammond Inc. has analyzed the setup time on its computer-contr

Question

Reduce Setup Time

Hammond 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 135 minutes, consisting of the following steps:

Why should management be concerned about improving setup time?

a. A ------setup will result in a -------- production batch, which ------- work in process inventory and ------- lead time. ------- work in process inventory commits working capital that could be used for other purposes. Long lead times ---------- the company’s ability to respond to changes in customer demand.

b. Which of the following are the ways to improve Hammond Inc.'s setup time?

a .limit the trips to the tool room to one round trip, rather than two.

b. change the location of the fixtures to reduce lathe setup time.

c. eliminate the tool room and instead locate the tools in a visible location near the lathe.

d. change the entire lathe room layout, so that fewer steps are required to turn the lathe on and off, as well as clean the lathe and change fixtures for the lathe.

e. All of these are ways to improve setup time.

c. How much time would be required for a setup, using your suggestion in (b)?
$ minutes

Turn off machine and remove fixture from lathe 10 minutes Go to tool room with fixture 15 Record replacement of fixture to tool room 18 Return to lathe 20 Clean lathe 15 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 10 Total setup time 135 minutes

Explanation / Answer

A and C are suitable ways to improve.

3. There will be no time saving by adopting option (b). Same amount of time will be required i.e. 135 minutes.

***End of Answer***

In case of any query, kindly comment.

a .limit the trips to the tool room to one round trip, rather than two. Time saving Return to tool room 20 Return to lathe 15 Time saving in minutes 35 b. change the location of the fixtures to reduce lathe setup time. This is not ideal solution since fixtures' location is fixed in lathe and to change location new customised machine/lathe needs to be manufactured. c. eliminate the tool room and instead locate the tools in a visible location near the lathe. Go to tool room with fixture 15 Return to lathe 20 Return to tool room 20 Return to lathe 15 Time saving in minutes 70 Here time saving will get reduced by time taken to visit nearby location d. change the entire lathe room layout, so that fewer steps are required to turn the lathe on and off, as well as clean the lathe and change fixtures for the lathe. Not seems to be feasible since question is silent about fewer steps and also change in layout may change/ reduce only lathe cleaning time e. All of these are ways to improve setup time.

A and C are suitable ways to improve.

3. There will be no time saving by adopting option (b). Same amount of time will be required i.e. 135 minutes.

***End of Answer***

In case of any query, kindly comment.

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