Patent ID: 9481039
Filing Date: 2016-11-01
CPC Classification: B23B,Y10T

Claim Text:
1. An assembly of a polygonal double-sided indexable cutting insert and a shim, wherein: said polygonal cutting insert has opposing top and bottom polygonal surfaces; said polygonal cutting insert has a midplane (M) located midway between the opposing polygonal surfaces, in a thickness direction of the cutting insert, the thickness direction extending in a direction from one of the top and bottom polygonal surfaces to the other of the top and bottom polygonal surfaces; said polygonal cutting insert comprises a plurality of corner portions on each of said opposing polygonal surfaces, a corner cutting edge being formed at each corner portion; said polygonal cutting insert comprises a plurality of convex portions formed on each of said opposing polygonal surfaces, each convex portion being closer, in said thickness direction, to the midplane (M) than a nearest corner cutting edge; and said shim comprises a plurality of flat portions, each of at least three of said plurality of flat portions configured to contact a corresponding one of at least three of the convex portions of the cutting insert.