Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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- 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: Step Time (in minutes) Turn off machine and remove fixture from lathe 13 Go to tool room with fixture 15 Record replacement of fixture to tool room 18 Return to lathe 20 Clean lathe 17 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 8 Total setup time 138 Why should management be concerned about improving setup time? What do you recommend to Hammond Inc. for improving setup time? How much time would be required for a setup, using your suggestion in (b)?arrow_forwardA cell-phone repair shop consists of three processes. Step 1 requires 4 minutes per unit, step 2 requires 6 minutes per unit and step 3 requires 2 minutes per unit. 40% of units that complete the third step require rework, which means those units must start the process over at step 2 (processing times are the same for units being reworked) and rework is always successful. Demand at the shop is 0.8 units per minute. Instruction: Round your answer to three decimal places. What is the capacity of the shop (in units per units per minute)? units per minutearrow_forwardA process of making chair is described as follows: Stage 1 Seat and back attached Stage 2 Legs attached The production speeds are 15 chairs per hour for Stage 1 and 30 chairs per hour for stage 2. The cycle time of the process is ______minutes. The flow time of the process is ______ minutes.arrow_forward
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