Patent ID: 8734064
Filing Date: 2014-05-27
Classification: B23B,Y10T

Abstract:
1. An indexable insert for a cutting tool comprising: a support body defining a central opening defining a central transverse axis, said support body having first and second surfaces perpendicular to said central axis; a plurality of cutters integrally extending from said body and being equiangularly located about said axis; each said cutter having an impact cutting surface extending between first and second planar side surfaces and terminating in a cutting edge supported at a radially outer extremity, said first side surface being in a plane including a line parallel with one of said first and second support body surfaces and said second side surface containing no line parallel with said first side surface, said impact cutting surface and said second side surface meeting at a linear burnishing edge extending from a first end adjacent said support body to a second end intersecting said cutting edge; and each said impact cutting surface defining a side rake angle which ranges from substantially 6° to 10° relative to a plane parallel to said central transverse axis, wherein said impact cutting surface has a first width between said first and second side surfaces adjacent said support body and a second width at said cutting edge, said second width being less than said first width.