Support Structure Fabrication Project Overview
An overview of a support structure fabrication project by Hanzel, focusing on procurement strategy, budgetary estimates, vendor quotes, and lead times for various components like yokes, loadpads, collars, master and false coils, aluminum shells, nitronic end plates, axial rods, and tension rods. The project involves obtaining budgetary estimates, analyzing pricing spreads, lead times, tolerances, and possible mitigations for tight tolerance issues. Various vendors have provided estimates and the project aims to procure items individually from suppliers capable of production fabrication.
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Presentation Transcript
Support Structure Fabrication K. Hanzel
Procurement Strategy Plan to procure all items individually Focus on suppliers capable of production fabrication 7/16/15 2
Budgetary Estimates Budgetary estimates of pricing and leadtime were obtained for the following: Yokes, Collars, Loadpads Master, False Coil Aluminum Shells Nitronic End Plates Axial & Tension Rods Estimates based upon redline CERN prints Updated for domestically available materials and correction to lengths 7/16/15 3
Yokes, Loadpads & Collars Budgetary estimates received from 6 vendors Pricing for all Yokes, Loadpads & Collars range from $100k $700k 3 vendor estimates are between $280-$400k Leadtimes range from 4-16 weeks Tolerances driving cost 7/16/15 4
Master & False Coil Budgetary estimates received from 3 vendors (2 No Bids) Tolerances are an issue Tight profile tolerance along length, slots common zone true position along length Possible mitigations Apply tolerances in constrained state, loosen tolerances Large pricing spread $50k -$450k 2 Vendors under $100k Leadtime 16 weeks 7/16/15 5
Aluminum Shells Budgetary estimates from 3 forging vendors, 2 final machining vendors & 3 vendors for forging + final machining Pricing for final machined shells Range $80k-$200k 3 vendors below $120k Preference is for vendor to procure forging and provide final machined part Leadtimes range from 16-29 weeks for finished machined parts Tight tolerances, concern with impact of final end milling on ID concentricity 7/16/15 6
Nitronic End Plates, Axial Rods, & Tension Rods Budgetary Estimates Nitronic End Plates (2 Each): Estimated Cost - $26.7k Leadtime - 10 weeks Axial Rods (4 each): Estimated Cost - $11k Leadtime - 8 weeks Yoke Tension Rods (8 each): Estimated Cost - $11k Leadtime 8 weeks 7/16/15 7
Procurement Costing Estimate Estimates (LBNL Burdened @ 24.5%) Yokes, Loadpads & Collars - $371k Master, False Coil - $100k Aluminum Shells - $148k Nitronic End Plates - $33.3k Axial & Tension Rods - $27.4k Total (No Contingency)= $680k 30% Contingency = $204k Total with Contingency = $884k 7/16/15 8
LBNL Procurement Leadtimes Procurement Processing Times after Requisition Submitted Up to $25k 14 Days $25k-$150k 25 Days $150k - $500k Requires competitive sourcing, leadtimes vary (likely 6- 8 weeks) Above $500k Advance Acquisition Alert 30 Days prior to requisition required, additional approvals required, leadtimes on the order of several months Financial year close will impact procurements 7/16/15 9
Aluminum Shells Fabrication Schedule 7/16/15 10
Master & False Coil Fabrication Schedule 7/16/15 12
Quality Assurance Collars, Yokes, Load pads Vendor 1st article inspections & LBNL sample inspection Vendor production inspections LBNL receipt sample inspections Master & False Coil Vendor inspection & LBNL receipt inspection Aluminum Shells Material certification Non destructive examination of forging Vendor inspection & LBNL receipt inspection 7/16/15 13
