Insert Molding
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Transcript of Insert Molding
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NTTF - SPGNTTF - SPG*SEMINAR ON INSERT MOLDINGBym.praveen
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NTTF - SPGNTTF - SPG*Types of insert moldingTypes of insertsAdvantages/disadvantagesApplicationsCase studyConclusion
Insert molding
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NTTF - SPGNTTF - SPG*INTRODUCTIONInsert molding is the process of injecting polymer around another core material.Incorporated as a post molding operation
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NTTF - SPGNTTF - SPG*Materials PP, PC, ABS, PA, Etc.,ProcessesInjection moldingCompression moldingGRP moldingExtrusion blow moldingSMC/DMC moldingRotational molding
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NTTF - SPGNTTF - SPG*Types of insert molding
Molded in insertsPost molding inserts Plastic pre molded
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NTTF - SPGNTTF - SPG*Molded in inserts
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NTTF - SPGNTTF - SPG*Post molding insertsCold press fitting (interference)Hot pressingUltrasonic insertionExpansion insertsSelf tapping insertsSwaging
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NTTF - SPGNTTF - SPG*Cold press fittingHigh stress levelLow srength
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NTTF - SPGNTTF - SPG*Hot pressingHeated insertShould be taperedShould have clearance at bottom
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NTTF - SPGNTTF - SPG*Ultra sonic insertionTapered holeInserts are with undercuts
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NTTF - SPGNTTF - SPG*Self threading insertsThread forming Thread cutting
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NTTF - SPGNTTF - SPG*Expansion insertsExpansion inserts are usedHoop stress is more
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NTTF - SPGNTTF - SPG*Swaging
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NTTF - SPGNTTF - SPG*Plastic pre molded inserts
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NTTF - SPGNTTF - SPG*Types of insertsMade up of brass, aluminium.Blind and open female threadsMale threadsBlind holes and open plain holesSpecial inserts (wires, plates, stampings)
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NTTF - SPGNTTF - SPG*Female thread/plain insertsThrough Blind
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NTTF - SPGNTTF - SPG*Male inserts
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NTTF - SPGNTTF - SPG*Pre form inserts
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NTTF - SPGNTTF - SPG*AdvantagesDurableDesign flexibilityGood holding powerFrequent disassembly/assembly is possibleTo provide a more precise bore to shaft fit
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NTTF - SPGNTTF - SPG*DisadvantagesCycle timeRejected partsMold damageWeld linesMolded in stress
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NTTF - SPGNTTF - SPG*ApplicationsAutomobile partsKeyboard KeysToysCircuits
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NTTF - SPGNTTF - SPG*ExamplesElectrical ComponentsComputer HardwaresConnectorsMedical Equipments etc.,
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NTTF - SPGNTTF - SPG*Case studyCircuit boardCarrier assemblyBrush holderPrimary terminal
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NTTF - SPGNTTF - SPG*Other components
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NTTF - SPGNTTF - SPG*ConclusionIn this seminar I have tried to give a brief introduction about the process, the various types of inserts available, location and loading of these inserts, its advantages and disadvantages. This gives the viewers a brief idea about the dos and donts and things to be taken care of while planning for the insert molding process.
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NTTF - SPGNTTF - SPG*Thank you
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