CUTTING INSERT AND INDEXABLE CUTTING TOOL
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Nov 6, 2012
filing date -
May 6, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cutting insert helps prevent the occurrence of burrs and enables highly efficient processing. The cutting edge of the insert includes a cutting corner portion, a first main cutting edge and a second main cutting edge. The second main cutting edge includes a descending inclination portion inclined toward the side of a surface facing the rake face as it separates from the cutting corner portion and an ascending inclination portion inclined toward the side of the surface on which the rake face is formed, as it separates from the cutting corner portion. The descending inclination portion is connected to the cutting corner portion, the ascending inclination portion is connected to the descending inclination portion, and at least a connection region between the ascending inclination portion and the descending inclination portion has a concave curved non-cutting recess portion.
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