Donner Company Case Solution

Donner Process Flow Preparation Stage Image convey Pinning grace to apply table practiseing Holes CNC rehearse Press Metallization Washing scrubbing and coating of bloodshed with DFPR colligation of Customer Artwork and film to UV DFPR Developing machine Electroplating and throne Plating Chemical Etching of DFPR and Copper mould Pinning im jury to usage table Drilling Holes CNC Drill Press Metallization Washing scrubbing and coating of panel with DFPR connective of Customer Artwork and exposure to UV DFPR Developing motorcar Electroplating and derriere Plating Chemical Etching of DFPR and Copper layer Fabrication conjoinmask Silk screening Solder Bath Reduction to sunk profile by CNC routing/ cowhand abbreviate Soldermask Silk screening Solder Bath Reduction to undefiled profile by CNC routing/ slug coerce Order Size in drilling permit Order size of it = N If manual gouge is used, thence time taken to punch N loc ates = 15 + N*0.08*500 = 15 + 40N If CNC is used, then time taken to punch N orders = 240 + N*0.004*500 = 240 +2N Hence it is clear that CNC should be used yet when time taken by CNC is subtile that time taken by manual press i.e.

15+40N >= 240 + 2N => N = 6 Hence for Order sizes 6 or preceding(preno moal) CNC should be used and order sizes below 6, manual press should be used CNC Routing Let number of Orders = N cartridge clip clip for punch press = 50 + N clock for CNC Router = 150 + 0.5N Again, CNC router should be used only if 50 + N > 150 + 0.5N * N = 200 Capacity of DFPR subje ct sweep (Order size assumed to be 8) Time! taken for panel preparation (one panel has eight circuit boards, hence 8 orders is serviced by a single panel preparation) = 5 + 0.2 = 5.2 min Time taken for Lamination and exposure = 20 + 2 = 22 min Time taken for Developing = 20 + 0.2 = 20.2 min Hence the bottleneck work on here is Lamination and exposure which takes 22 min for an order size of 8. Hence capacitor of this process = 1/22 panels per minute = 60/22 panels per hour = 2.72 panels...If you want to get a proficient essay, order it on our website: OrderCustomPaper.com

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