Three machines are used in a group-technology cell to process a family of five parts. The table below lists production quantities (Qj), production times (Tpij), and machine fractions for each family member (fij). Part E requires a changeover time of 5 min on each machine so it is produced in batches of 5 parts. Nonoperation times (Tno) are the same for all parts and machines: 25 min per machine. Determine (a) average hourly production rate for the cell, (b) utilization of each machine and average utilization of the cell, (c) manufacturing lead time, and (d) work-in-process. A spreadsheet calculator is recommended for this problem

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Three machines are used in a group-technology cell to process a family of five parts. The
table below lists production quantities (Qj), production times (Tpij), and machine fractions
for each family member (fij). Part E requires a changeover time of 5 min on each machine so
it is produced in batches of 5 parts. Nonoperation times (Tno) are the same for all parts and
machines: 25 min per machine. Determine (a) average hourly production rate for the cell,
(b) utilization of each machine and average utilization of the cell, (c) manufacturing lead
time, and (d) work-in-process. A spreadsheet calculator is recommended for this problem

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