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www.coc-aerospace.com|info@coc-aerospace.com
PLATFORM: Northrop F-5 E / F
PROGRAM: LandingGearReconstruction
PRODUCT: NoseandMainLandingGear
CASE STUDY
PARTNUMBERS:14-40600MainGear&14-41600(7829186to7829194)NoseGearTECHPUBLICATIONS:T.O.1F5E-2-7SeriesTECHNOLOGIES:COLDSPRAYtoMIL-STD-3021
PROBLEM:Replacementcostsandmanufacturingtimefornewproductionlandinggearcomponents. SOLUTION:ColdSpray is theapplicationof supersonicparticledeposition (SPD) for repairingandenhancing theairworthiness and integrity of aging aircraft structures.With Cold Spray, there is no degradation ofmaterialheattreattemperbecauseitutilizeskineticratherthanthermalenergy.Thisadditiveprocess,inwhichmetalparticlesentrainedinasupersonicjetofanexpandedgas,impactasolidsurfacewithsufficient energy to cause plastic deformation and bonding with the surface so that the powder isreconstituted intoametalwithout the creationof aheataffected zone. Moreover, thedeleteriouseffectsofdepositoxidation,evaporation,andresidualstressesareavoided.UsingColdSpray,COCAerospacere-appliesmaterialback intothedamagedlandinggearparts. Theparts are re-machined to original dimensions, then final processing is performed including chrome,grind,anodize,etc.AllColdSprayisperformedthroughCOC’sPartnerMOOGattheirColdSprayCenterofExcellence.COCAerospacelandinggearreconstructioniscertifiedtoMIL-STD-3012andAS9100Rev’C’.Landing gear components that are the best candidates for Cold Spray repair and reconstructioninclude:
• MAINLANDINGGEARPISTONS&CYLINDERS• NOSELANDINGGEARMAINHOUSINGS&CYLINDERS
Costsavingisnormallyover60%ofnewparts.Cycletimetoreturnpartstoserviceis5timesfaster.
www.coc-aerospace.com|info@coc-aerospace.com
PLATFORM: Northrop F-5 E / F
PROGRAM: LandingGearReconstruction
PRODUCT: NoseandMainLandingGear
CASE STUDY
AfterColdSpray,partscanbereturnedtotheiroriginalstate
Damagedpartis‘cleanedup’,thenColdSprayedandremachined
Significantamountsofmaterialscanbereappliedtoheavly
damagedparts
COCAerospacePartner
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