Cutting Insert and Cutting Tool
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United States of America Patent
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N/A
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N/A
app pub date -
Aug 8, 2012
filing date -
Mar 10, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cutting insert has a cutting edge configured to suppress an increase in cutting resistance applied to a cutting boundary portion with an increase in a depth of cut. The cutting insert has a rake face, a flank, and a cutting edge formed at an intersection portion between the rake face and the flank and is removably attachable to a mounting seat. The cutting edge has an angle decreasing portion in which a cutting edge angle gradually decreases in a direction in which the depth of cut of the cutting edge increases. In one embodiment, the rake face includes an upper rake face and a lower rake face. The flank is formed on a side surface between the top and bottom surfaces. The cutting edge is formed at an intersection portion between the upper rake face and the flank.
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