Absorber Home works RIKEN/RBRC Itaru Nakagawa
Machining MachineDepth PitchSpeed FactoryFraise0.5 ~ 2 mm 40 ~ 50 m/min Test BenchLathe1 mm78 m/min.
B-Field Measurement B=500Gauss probe B=500Gauss probe Before machining After machining d=0.1mm Pitch r=0.1mm Pitch
Measured Results SUS303w/o samplew sampleSUS304w/o samplew/ samle Before Before Average After Average After Average Average
Material (SUS310) Supplier Metal Plate [mm]ProductionQuoteDelivery [week] Daido Steel Co.350 t mm (1body) Forging (1layer) $252k12 weeks Nippon Yakin Co. via TIME 50 t x1200x4000 (4) 45 t x1200x3300(4) Plate (8layers) $144k weeks Shima Metals50 t ×1170×2340 (14) Plates (7layers) $157k ($9.1/kg) 8 – 10 weeks Fuji Kogyo (via Giken) 210 t x1120x1120 (4) 180 t x987x987 (4) Forging (2layers) $320k4 weeks 70tPlatesNext week NAS Trading Co.50 t ×1170×2340 (28)Plates10 weeks 5 Very likely no stock available. Need to produce. Production ~ 1 week. Waiting > 7 weeks.
Summary for Both Arms Case-1CompanyCostDelivery MaterialShima Kogyo$270k8 – 10 weeks MachiningYagishita Giken$23.5k x 2?4 weeks minmum ShippingMaruwn$4.65k4 – 5 weeks Total$300+k15 – 18 weeks 6 Case-2CompanyCostDelivery MaterialNippon Yakin$252k weeks MachiningTIME$45k weeks ShippingMaruwn$4.65k4 – 5 weeks Total$300k15 + weeks Yagishita has only 2 machine centers, while TIME has 5.
SUS t mm? Plates are in stock. Confirmed for one arm amount by Inoue Material. They can get plates within 2 weeks.
Budget Transfer Issue
Scenario 1 UIUC RIKEN BNL REPIC Bid REPIC Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Can BNL/UIUC issue a purchase order to REPIC w/o bidding? Absorber Project
Scenario 2 UIUC RIKEN BNL Bid Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Project C Project B RIKEN Administration Absorber Project
Scenario 3 UIUC RIKEN BNL Bid Company A Material ~$300k $50k $250k$100k Company B Machining ~$50k Absorber Project
Construction in US
Scenario 1 UIUC RIKEN BNL Bid REPIC $50k$250k $100k Company B Bid Bid in JapanNorth arm South arm