INDEXABLE INSERTS AND DRILLS COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Jan 28, 2016
app pub date -
Jul 23, 2015
filing date -
Jul 25, 2014
priority date (Note) -
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Abstract
In one aspect, cutting inserts are described herein comprising an indexable architecture including four cutting edges for material removal in cutting or drilling applications. A cutting insert described herein comprises four cutting edges formed by intersection of a rake face and flank faces, each cutting edge comprising a first linear portion connected to a second linear portion by a curved transition portion, wherein the second linear portion is parallel with an axis bisecting a virtual inscribed circle of the cutting insert and the first linear portion forming an angle θ with the axis.
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