CUTTING INSERT, CUTTING TOOL, AND METHOD FOR MANUFACTURING MACHINED PRODUCT
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Jul 1, 2022
filing date -
Jul 1, 2021
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Abstract
A cutting insert according to one non-limiting example has a quadrangular prism shape extending from a front end toward a rear end along a central axis, and comprises a cutting portion, and a main body portion. The main body portion includes an upper surface including a first flute having a V-shape extending along the central axis, and a lower surface including a second flute having a V-shape extending along the central axis. A first flute has a first region positioned on the rear end side and a second region positioned on the front end side with respect to the first region. An opening angle of the first flute in the first region is smaller than an opening angle of the first flute in the second region. An opening angle of the second flute is constant in a direction along the central axis.
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