TURNING TOOL FOR INTERNAL MACHINING
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Aug 21, 2013
filing date -
Aug 24, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A turning tool for internal machining has a spiral groove at a head section entering an inside of a workpiece. The turning tool includes a tool body, which has a head section and a shank section extending from the head section, and a cutting insert. The head section includes the following: a flat portion extending from a front end of the head section, which enters the inside of a workpiece, toward the shank section; an insert pocket formed at an edge of the flat portion as offset from a central axis of the tool body; and a chip flute extending from a proximity of the insert pocket toward the shank section across the central axis of the tool body and including a spiral curved surface on a peripheral surface of the head section. The cutting insert is replaceably mounted to the insert pocket.
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