Unformatted text preview: Donner Company 86.13% Donner Company Process Flow
WIP for Image transfer Master Art Work Negative Image Replication 13.87% Inspection & Shearing Punching of location hole 16.25%
Manual drilling Stripping of DFPR Electroplating DFPR Coating Panel Prep. Metallization CNC Driller Etching of Cu Stripping of Sn WIP for fabrication 83.75% 99.70%
21.3% 0.30% Punch press Solder Mask Solder dip 75.40% Inspection Testing Packaging CNC router Shipping
3.30% Order Size: CNC Drill
Present Scenario CNC drill used for order size >=140, i.e. a total of 9 orders comprising of 4825 boards Optimum Scenario maintaining the policy restriction (Order size >=100 boards) (Order size >= 100, i.e. 12 orders comprising of 5174 boards) Total time for CNC drill = 2880 (Setup) + 10348 (Runtime) = 13228 min Manual Drilling time = 24200 min So total time required for drilling = Max( Total time for CNC drill , Manual Drilling time ) = 24200 min. Optimum Scenario without maintaining the policy restriction Break Even point between CNC and Manual drilling time: Order size >=50 into CNC drilling CNC Drilling time = 3840 (Setup) + 10826 (Runtime) = 14676 min Manual Time = 660 (Setup) + 13720 (Runtime) = 14380 min So total time required for drilling = Max( Total time for CNC drill , Manual Drilling time ) = 14676 min Order Size: CNC Router Present Scenario Order > = 229 CNC Router time = 900 +2166 = 3066 min Punch press time = 2350 +1223 = 3573 min Decrease in order size => Increase in profile time This is optimum scenario Capacity Utilization (Number of boards per min) Preparation Artwork: .55 Inspect & Shear: 3.69 Punch Tooling Holes: 6.0 Drill Manual: .024 CNC: .408 Metallization: 5.05 DFP: 1.3 Electroplate: .75 Strip DFPR: 12.97 Etch & Tin Strip: 7.74 Fabrication Soldermask: 1.62 Solder dip: 2.86 Profile: .84 Inspect, Test, Pack: .51 ...
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- order size, Metallization CNC Driller, manual drilling time, CNC drilling CNC