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I know 999 is correct. for the one answer i have filled in .
Calculate The elapsed time between starting a unit of product into the beginning of a process and its completion.Lead Time
Michigan Machining Company machines metal parts for the automotive industry. Under the traditional manufacturing approach, the parts are machined through two processes: milling and finishing. Parts are produced in batch sizes of 90 parts. A part requires 3 minutes in milling and 8 minutes in finishing. The move time between the two operations for a complete batch is 9 minutes.
Under the lean manufacturing philosophy, the part is produced in a cell that includes both the milling and finishing operations. The operating time is unchanged; however, the batch size is reduced to 6 parts and the move time is eliminated.
Determine the The time required to manufacture a unit of product or other output.value-added, The time that units wait in inventories, move unnecessarily, and wait during machine breakdowns.non-value-added, and total lead times, and the The ratio of the value-added lead time to the total lead time.value-added ratio under the traditional and lean manufacturing methods. If required, round percentages to one decimal place.
%
Traditional Philosophy Lean Manufacturing Philosophy Value-added time min min Non-value-added time min min Total lead time 999 min min Value-added ratio (as a percent) %%
Explanation / Answer
Traditional Philosohpy :
Value Added Time = 90*(3+8) = 990
Non-Value Added Time = 9
Total Lead Time = 999 min
Value Added Ratio = 990/999 = 99.1%
Lean Manufacturing Philosophy
Value Added Time = 6*(3+8) = 66 min
Non-Value Time = 0
Total Lead Time = 66
Value-Added Ratio = 66/66 = 100.0%
Traditional Philosophy Lean Manufacturing Philosophy Value-added time 990 min 66 min Non-value-added time 9 min 0 min Total lead time 999 999 min 66 min Value-added ratio (as a percent) 99.1% % 100.0% %Related Questions
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