Lathe Operations-background

Lathe Operations-background - Enlarge hole Create special...

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Lathe Operations Turning Boring Facing Parting Knurling Drilling, tapping, reaming Threading
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Turning Majority of lathe work Feed is from right to left Rough cut: large DOC, slow feed Finish cut: 1 or more cuts, less than 0.015” DOC 1 12 D V N π = d Vf MRR r 12 2245
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Tapered Turning   Using Compound Rest Compound rest set at desired angle Compound slide used to feed the tool Limited to short tapers Difficult to set taper accuracy
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Tapered Turning Using Taper Attachment Attachment to carriage which controls movement  of cross-slide Limited to tapers less than 6in./ft.
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Tapered Turning Offset of the tailstock Limited to small tapers Seldom used CNC Machine
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Boring Internal turning Enlarging an  existing hole
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Boring Purposes: Make the hole concentric with axis of rotation Improve surface finish
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Unformatted text preview: Enlarge hole Create special features, i.e. o-ring groove Feeds and DOC less in boring operations than turning due to tool overhang Equations for N and MRR the same as turning. Lathe Operations Facing Flat surface produced perpendicular to axis of rotation Parting Operation that removes a finished part from the raw stock Lathe Operations Knurling A cold, forming process that produces a raised diamond pattern on the surface. Drilling, reaming, tapping Lathe Operations Threading Grinding Surface Roughness 2 8 r f y CR 2245 Roughness height Feed rate CR = Corner radius r y f = = Links Cox Manufacturing - Swiss Turned parts SwissTurn/USA - Products...
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This note was uploaded on 05/20/2008 for the course MET 153 taught by Professor Kohser during the Spring '08 term at Missouri S&T.

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Lathe Operations-background - Enlarge hole Create special...

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