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Monday, February 18, 2013

Executive Shirt Case

Minutes/ShirtNo. of WorkersCycle while
Collars3.9829.25
Cuffs2430
Sleeves0.65219.5
Front2.5625
suffer1.7425.5
Join Shoulders0.66219.8
subjoin Collars1.65424.75
Attach Sleeve1.55423.25
Stitch Sleeve0.65219.5
hoist side seam1.8427
Attach Cuff1.55423.25
Hem bottom1.7425.5
Inspect1.5422.5
atomic number 261.95429.25
Pack1.75426.25
entirety25.51




Manufacturing transition cartridge holder= 370.3 +(90+30)/8 = 370 +15 mins =385.3 mins
Labor Content = 25.51 + 1 = 26.51 min

cartridge clip taken to lay 60 layers of cloth: 90 legal proceeding
cadence taken to cut all the pieces: 30 transactions
Total time for cutting: 120 minutes for 480 enclothes (8*60 shirts (patterns per layer * total layers))
Cycle time for cutting (120*4) /480 = 1 min ( multiplied by 4 because 4 workers)

Process flow diagram:
Raw Material, Fabric



(

Cycle Time : 30 mins / wad

That translates to 120 shirts per hour or 120*8 =960

make up output= 800 shirts /day

substance Utilization= 800/960= 83.33%

Actual cycle time: 480/960 =0.6 mins/shirt

WIP= 11760 shirts

Manufacturing Lead Time= WIP* cycle time
= 11760* 0.

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6 =7056 mins

Available Labor per shirt= 480*64*/800 =38.4
Labor utilization= 26.51/38.4

For Mikes intent=

Manufacturing process time= 370.312 =30.86
Cutting laying time =2.5
Total manufacturing process time =33.36 mins/batch

WIP= 1980 shirts
Cycle Time= 480/900 =5.33

MLT = 1980 * 5.33 =1056 mins

Capacity Utilization= 900/960= 93.8%

?
1.When does the first batch of shirts come out?
Time taken for cutting process = 120 min (assuming batch of 60)
Longest operation time: Make back(25.5) + join shoulders( 19.8 ) + wed collars ( 24.75 )+ attach sleeve( 23.25 ) + stitch down sleeve( 19.5 ) + sew side seam( 27 ) + attach cuffs ( 23.25)+ hem bottom( 25.5 ) + inspect element(22.5 ) + iron ( 29.25) + fold ,package( 26.25 ) = 266.55 min
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