lathe operations background

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Lathe Operations Turning Boring Facing Parting Knurling Drilling, tapping, reaming Threading

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  • Lathe OperationsTurningBoringFacingPartingKnurlingDrilling, tapping, reamingThreading

  • TurningMajority of lathe workFeed is from right to leftRough cut: large DOC, slow feedFinish cut: 1 or more cuts, less than 0.015 DOC

  • Tapered Turning Using Compound RestCompound rest set at desired angleCompound slide used to feed the toolLimited to short tapersDifficult to set taper accuracy

  • Tapered TurningUsing Taper AttachmentAttachment to carriage which controls movement of cross-slideLimited to tapers less than 6in./ft.

  • Tapered TurningOffset of the tailstockLimited to small tapersSeldom usedCNC Machine

  • BoringInternal turningEnlarging an existing hole

  • BoringPurposes:Make the hole concentric with axis of rotationImprove surface finishEnlarge holeCreate special features, i.e. o-ring grooveFeeds and DOC less in boring operations than turning due to tool overhangEquations for N and MRR the same as turning.

  • Lathe OperationsFacing Flat surface produced perpendicular to axis of rotation

    Parting Operation that removes a finished part from the raw stock

  • Lathe OperationsKnurling A cold, forming process that produces a raised diamond pattern on the surface.

    Drilling, reaming, tapping

  • Lathe OperationsThreading

    Grinding

  • Surface Roughness

  • LinksCox Manufacturing - Swiss Turned partsSwissTurn/USA - Products