Patent ID: 7261497
Filing Date: 2007-08-28
Classification: B23C,Y10T

Abstract:
1. A throw-away insert comprising: an upper surface; a bottom surface formed with four corners; two side surfaces connected to a first set of two parallel sides of said bottom surface; two sloped end surfaces connected to a second set of two parallel sides of said bottom surface; a main cutting section formed from a ridge line positioned at an intersection between said side surface and said upper surface; a secondary cutting section formed from a ridge line positioned at an intersection between said end surface and said upper surface; an axial support surface supported by an insert pocket of a cutter body; and four nose sections formed at corners of said upper surface; wherein: corner angles of said four corners as seen from a plane view of said insert are essentially right angles, and at least one nose section of said four nose sections is formed by combining said main cutting section and said secondary cutting section and a nose corner; said axial support surface is formed from a section of said end surface; said secondary cutting section is parallel with said bottom surface and a ridge line at an upper end of said axial support surface and is projected further along a length axis of said main cutting section than said ridge line at said upper end of said axial support surface; and a radial support surface is positioned at said side surface and is essentially perpendicular to said axial support surface.