taps dies thread cutting
DESCRIPTION
External thread Internal threadTRANSCRIPT
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Threading operations
TapsDies
Thread cutting
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External thread Internal thread
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Pitch
The distance from a point on a screw thread to a corresponding point on the next thread.
Pitch = 1.0/threads per inch
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Threads Fits
Threads are classified by the accuracy of form and fit compared to a theoreticly perfect thread.
Application dictates thread class requirements
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General anatomy of threads
Pg 91 ST
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Different forms
Acme Buttress
Taper Square
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Tap- threaded tool with external flutes
Die- Internally threaded tool
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Tap types
Taper Plug Bottom
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Thread cutting on Lathe
External Internal
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Tonights operation
Debur Material Drill tap hole on mill Tap using tap chuck and guide bushing