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Download - Process Improvement for Convoluted PTFE Hose Thermal …2016 Process Improvement for Convoluted PTFE Hose Thermal Expansion PROJECT SUMMARY TECHNICAL APPROACH Thermal Expansion Solutions

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Page 1: Process Improvement for Convoluted PTFE Hose Thermal …2016 Process Improvement for Convoluted PTFE Hose Thermal Expansion PROJECT SUMMARY TECHNICAL APPROACH Thermal Expansion Solutions

SENIORDESIGN

Spring

2016 ProcessImprovementforConvolutedPTFEHoseThermalExpansion

PROJECTSUMMARY

TECHNICALAPPROACH

ThermalExpansionSolutionswastaskedtoimproveupontheexistingprocessthatParkerStratoflex utilizestothermallyexpandconvolutedPTFEhosesforaerospaceapplications.Keyrequirementsfortheprojectwhereimprovedsafety,reducedproductscrap,increasedprocessrepeatability,andreducedoverallprocesstime.

Anewthermalexpanderwasdesignedtoaddresstheserequirements.Thenewdesignconsistsoffourmainareas:thehose-clampingmechanism,therailsystemwithsupportframe,mandrelswithmandrelcompartments,andtheslidingtrapdoor.

PhaseI• Investigatedcurrentthermalexpanderdesignandprocess.• Developedcriteriatoaddresskeyclientneedsforimprovedsafety,

reducedproductscrapduetoPTFEfolding,increasedprocessrepeatability,andreducedprocesstimeperhose.

• Developedpotentialsolutionsforimprovementtokeyareasofthethermalexpanderandcombineddown-selecteditemsintofinalconceptualdesign.

PhaseII• Fabricatedtestmandrelstodeterminebestmandrelshapetoexpand

hoses.• Developeddetaileddesignwithsuggestedimprovementsfromclient.• Establishedproceduresforassembly,operation,andmaintenanceof

newthermalexpanderdesign.• Presentedfinalizeddetaileddesignwithrecommendationsforfurther

developmentandautomation.

RonaldoMarionTeamLead

RyanSerioDesignLead

JoaquinFelixCADModeler

MarcusBrewerThermalAnalysis

MarcSellersMaterialsResearch

ThermalExpansionSolutions

Figure1:Currentthermalexpanderdesign.

Figure2:ExpanderPTFEHosewithFoldingDefect.

Figure2:NewThermalExpanderDesign.Trapdoor,electricbox,andventilationequipmentarenotshown.

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