P4_L05_SimpleSetup - OM335Fall2008

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OM 335 Fall 2008 6511b5f2389624b888c9b2b9cf45c71a9a5ae356.doc P4: Simple Setup  Consider the following batch-flow process consisting of three process steps performed by three machines: Work is processed in batches at each step. Before a batch is processed at Step 1, the machine has to be set  up. During a setup, the machine is unable to process any product. a) What is the bottleneck in this process? Assume that the batch size is 50 parts. What is the capacity of  the process? b) For a batch size of 10 parts, which step is the bottleneck for the process?  c) What batch size would you choose, assuming that all units of a batch do not have to stay together for  the entire process? Solution: a) First, we calculate the process capacity at each step using the formula for process capacity with  batching: . time
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P4_L05_SimpleSetup - OM335Fall2008

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