Cutting insert, cutting tool, and method for manufacturing machined product
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United States of America Patent
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Jan 31, 2023
Grant Date -
Aug 26, 2021
app pub date -
Jun 27, 2019
filing date -
Jul 6, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A cutting insert may include a base and a cutting part. The cutting part may include an upper surface, a first cutting edge and a second cutting edge. The first cutting edge may be located on a first ridgeline. The second cutting edge may be located on a second ridgeline. The upper surface may include a first inclined surface, protrusions and a first upheaved part. The first inclined surface may be located along the first ridgeline. The protrusions may be located side by side in a direction along the first ridgeline on the first inclined surface. The first upheaved part may be located at a side further away from the first ridgeline than the pair of protrusions. The second cutting edge may be inclined downward. An upper end of the first upheaved part may be located above the second cutting edge.
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