Tapping tool and method for producing a threaded bore
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United States of America Patent
Stats
-
Aug 9, 2022
Grant Date -
Jan 21, 2021
app pub date -
Apr 2, 2019
filing date -
Apr 27, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tapping tool for producing a threaded bore having an internal thread in a workpiece. The tapping tool has a main cutting edge on its drill tip and a thread profile trailing in a tapping direction. The method has a tapping stroke in which the tapping tool is driven into the workpiece at a tapping feed rate in the tapping direction and at a tapping speed synchronized therewith and the main cutting edge of the tool produces a core hole bore and the tool thread profile forms an internal thread on the inner wall of the core hole bore. Chips are produced in the tapping stroke, which are conveyed out of the threaded bore in a chip removal direction opposite to the tapping direction and collide with thread flanks of the internal thread facing toward the chips to be removed.
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