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CUTTING INSERT, CUTTING TOOL, AND METHOD OF MANUFACTURING MACHINED PRODUCT USING THE SAME

  • US 20180169767A1
  • Filed: 06/20/2016
  • Published: 06/21/2018
  • Est. Priority Date: 06/23/2015
  • Status: Active Grant
First Claim
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1. A cutting insert, comprising:

  • an upper surface having a polygonal shape and comprising a corner;

    a side surface adjacent to the upper surface;

    a cutting edge located at a ridge part in which the upper surface intersects with the side surface and comprising a corner part located at the corner; and

    a protrusion located on the upper surface, comprising;

    a first protrusion located on a bisector of the corner in a top view; and

    a second protrusion adjacent to the first protrusion in a direction orthogonal to the bisector in the top view, andwherein the second protrusion is closer to the corner part than the first protrusion in a top view.

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