Process Improvement for Convoluted PTFE Hose Thermal …2016 Process Improvement for Convoluted PTFE...
Transcript of Process Improvement for Convoluted PTFE Hose Thermal …2016 Process Improvement for Convoluted PTFE...
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.