Method of manufacturing a copying cutter
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United States of America Patent
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Feb 9, 1999
Issued Date -
N/A
app pub date -
Aug 19, 1997
filing date -
May 19, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a copying cutter provided with a cylindrical or conical body having a spherical end, constituting the active portion of the cutter, said end including a plurality of flutes inclined at a determined angle .theta. relative to the longitudinal axis of the cutter and formed along circular arcs at a determined distance x from the midplane P of the cutter, an inside face and an outside face of each of the flutes constituting, after machining, respectively a cutting face and clearance faces of each tooth of the cutter. The clearance faces comprise a first clearance face and an additional clearance face presenting at least a first facet. The cutting face has a cutting angle .gamma. given by the following equation: ##EQU1## where R is the radius of the cutter. The present invention also relates to a method of manufacturing the cutter.
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