Patent ID: 6488450
Filing Date: 2002-12-03
Classification: B23C,Y10T

Abstract:
An indexable cutting insert for milling, comprising:a body of hard metal molded to provide an oblong plane seating surface, a pair of opposed surfaces rising symmetrically divergently from the long edges of said seating surface, a top surface opposed to said seating surface, and a through hole central to said oblong surface on an axis perpendicular thereto, said hole being countersunk from said top surface to receive a countersink head fastener; said opposed divergent surfaces each having a central plane facet flanked symmetrically by a pair of plane facets receding from said central facet; said opposed divergent surfaces constituting alternatively the rake surface and the rear seating surface of the insert when mounted in the body of a milling tool, said flanking receding facets of said divergent surfaces providing wedge-like engagement with conforming backing surfaces in a receiving insert pocket of the tool to secure the insert against dislodgment; said top surface providing a clearance face in both alternative indexable positions of the insert and providing the cutting edges of the insert at its intersections with said divergent surfaces.