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FORGING

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FORGINGMODULE 3UPSET FORGINGOpen Die forgingImpression/Closed Die forgingFlashless/ Precision forgingSTANDARD OPERATIONS AND CLASSIFICATIONS1. Upsetting2. Edging FulleringCrosssectionalareaoftheworkredu cesasmetalflowsoutward,awayfromcentre4. Drawing Piercing Metal flows around the die cavity as a moving die pierces the Bending: The metal is bent around a die/anvil. Roll FORGING Inthisprocess,thebarstockisreducedincros s-sectionorundergoeschangeincross-sectio nwhenitispassedthroughapairofgroovedroll smadeofdiesteel. Thisprocessservesastheinitialprocessings tepforforgingofpartssuchasconnectingrod, ROLLINGCoggingSuccessivelyreducingthethi cknessofabarwithopendieforging Alsocalleddrawingout Reducingthethicknessofalongsectionofabar withoutexcessiveforcesormachiningForging betweentwoshapeddies FulleringandEdgingdistributematerialinto specificregionsoftheblank BlockingcreatesaroughshapePrecision FORGING Truecloseddieorflashlessforgingusespreci sevolumesofmaterialtocompletelyfillthedi ecavity Undersizeblankswillnotfillthecavity,over sizeblankswillcausehighpressuresandmayda magethedies Reducesthenumberofadditionaloperationsan dwastedmaterial Near-net-shapeforging(ornet-shape)DIE INSERTSSWAGINGRotaryswagingorradialforgi ngandTubeswaging Asoli

Roll forging In this process, the bar stock is reduced in cross-section or undergoes change in cross-section when it is passed through apair of grooved rolls made of die steel. This process serves as the initial processing step for forging of parts such as connecting rod, crank shaft etc.

  Forging

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