Engineering, 30.03.2020 17:49 icantspeakengles
Blem 1. 60 points Gage blocks must be lapped for flatness and parallelism. Cluster of identical CNC lapping machines are available. Both sides of a block are lapped at a time; the lapping wheels are large enough to cover all gage blocks regardless of their lengths. Calculate the number of CNC lapping machines if we want to maximize the machine time by having only one single operator per cluster. Machine availability: 85% (15% time for maintenance) Rejection rate: 4% Lapping time per block: 20 minutes Time to walk between machines: 30 sec Loading/unloading time: 90 sec
Answers: 2
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Blem 1. 60 points Gage blocks must be lapped for flatness and parallelism. Cluster of identical CNC...
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