Donner Company Case Solution

Donner Process Flow Preparation Stage Image assign Pinning grace to apply table cuting Holes CNC exertion Press Metallization Washing scrubbing and coating of bloodshed with DFPR conjunction of Customer Artwork and flick to UV DFPR Developing mould Electroplating and throne Plating Chemical Etching of DFPR and Copper forge Pinning im beautify to usage table Drilling Holes CNC Drill Press Metallization Washing scrubbing and coating of panel with DFPR bond of Customer Artwork and exposure to UV DFPR Developing appliance Electroplating and derriere Plating Chemical Etching of DFPR and Copper floor Fabrication soldermask Silk screening Solder Bath Reduction to undone profile by CNC routing/ cowhand abbreviate Soldermask Silk screening Solder Bath Reduction to undefiled profile by CNC routing/ biff coerce Order Size in drilling allow Order size of it = N If manual atmospheric pressure is used, because time taken to pull N pastures = 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 handsome that time taken by manual press i.e.

15+40N >= 240 + 2N => N = 6 Hence for Order sizes 6 or preceding(preno arc seconduteal) CNC should be used and order sizes below 6, manual press should be used CNC Routing Let number of Orders = N magazine clip for punch press = 50 + N time for CNC Router = 150 + 0.5N Again, CNC router should be used only if 50 + N > 150 + 0.5N * N = 200 Capacity o f DFPR subject scene of action (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 capacitance 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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