Mid-Year Client Review

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A pparatus for the R emoval of C admium. Mid-Year Client Review. Joseph Seegmiller Alan Chatterton Doug Smith Walter Taresh. November 30, 2010. Agenda. BACKGROUND PROJECT GOAL SPECIFICATIONS REVIEW CLEANING PROCESS REVIEW MOCK-UP CADMIUM BUILD-UP SIMULATION - PowerPoint PPT Presentation

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Team ARC

Mid-Year Client ReviewNovember 30, 2010

Joseph SeegmillerAlan ChattertonDoug SmithWalter TareshApparatus for the Removal ofCadmium11AgendaBACKGROUNDPROJECT GOALSPECIFICATIONS REVIEWCLEANING PROCESS REVIEWMOCK-UPCADMIUM BUILD-UP SIMULATIONMATERIAL REMOVAL METHODS

22MARK IV ELECTROREFINER

33Build-UP on anode Shaft

44Electro Mechanical Manipulator

5PROJECT GOALDesign of a semi-automated system capable of removing cadmium buildup from the electrode assembly shaft of the Mark IV Electrorefiner to prevent electrical shorting between the electrode and vessel. 66SPECIFICATIONS REVIEWIncorporation without interference with existing operationsCleaning cycle time of 2 hoursApparatus life of 100 cleaning cyclesOperate in high radiation environmentCapture majority of removed cadmiumSetup and operation with Master-Slave Manipulators (MSM)15 Pound force limit for MSMNo petroleum-based lubricantsVertical load limit 200 poundsRemote replacement defective parts/subassembliesShaft capable of rotation and up and down motion

77

Cleaning Process ReviewElectrode assembly removed from chamber

Assembly brought to handling station88

Lower part of assembly removed

Heat shield is removed, shaft is exposed99

Cadmium removed using files, scrapers, etc.1010Exploded Drawing for MOCKUP

1111MOCKUP STATUSCURRENT STATE

Mill Attachment Point Original ComponentAdded LengthBearing Retaining Sleeve1212MOCKUP STATUSSTILL TO MACHINE13

Drill and tap Machine partChoose material and machineShaft Mounted in mill

1414Cadmium Build-UP SimulationSURRAGATE MATERIALSBrass soft, comparable to cadmiumAluminum harder than cadmium, but still relatively softSilver Solder soft, though difficult to solder to SSWax much softer, though easy to work withSpray foam hardens to solid, easy to use

1515Silver solder on SS Rod

16BenefitsSimilar to Cadmium

DifficultiesWill not lay down thick

16MATERIAL REMOVAL METHODSFINE, COURSE AND MILLED TOOTH FILESFine file - gummed easily, removed 0.006 from diameter in 2 minutes*Course file - did not gum as easily, removed 0.040 from diameter in 2 minutesMilled Tooth file - did not gum, removed 0.100 in 1-2 minutes

*Amount of material for one file blade width (app. 1.25)

1717Fine tooth file18Gummed easily, removed 0.006 from diameter in 2 minutes

Course double-cut file19Did not gum as easily, removed 0.040 from diameter in 2 minutes

Milled tooth file20Did not gum, removed 0.100 from diameter in 1-2 minutes

SINGLE POINT TOOL BIT21More rugged than three point insert

Three Point Insert Tool Bit22Three separate cutting teeth for potential ease of tool replacement.

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Work PlanBy December 17th:Finish machining the mockupProvide mid-year report detailing current statusChoose best material removal methodSpring semester:January 12th: Begin system-level design with best cutting methodFebruary 21st: Interim report outlining system-level designApril 4th: Completion of prototypeApril 29th: Demonstrate apparatus at Design Expo

2424Questions?2525