Threading cutting tool and double-sided indexable threading cutting insert therefor
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United States of America Patent
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May 6, 2014
Grant Date -
Dec 19, 2013
app pub date -
Jun 19, 2012
filing date -
Jun 19, 2012
priority date (Note) -
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Abstract
A double-sided indexable threading cutting insert includes two opposite end surfaces and a common periphery extending therebetween. The periphery includes exactly five identical peripheral sections and exactly five identical peripheral segments. Each peripheral segment extends between two adjacent peripheral sections and each peripheral section includes two adjacent abutment sections located between two rake faces. In a plan view of each end surface, each abutment section lies on a portion of an imaginary five-pointed star which includes five outer vertices alternating with five inner vertices. The cutting insert includes five cutting portions, each cutting portion is associated with a respective outer vertex, each cutting portion extends outwardly, and each cutting portion includes two opposite cutting tips.
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