Interfitting on-edge inserts for milling cutters
AssigneeIngersoll Cutting Tool Company
InventorRobert T. Koblesky
Life of this patent
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Abstract
Shown and described is an on-edge cutting insert for milling cutters in the form of a flat six-sided block having two parallel major faces which are seating and clearance faces, and two opposed edge surfaces which are rake faces which intersect at least one major face of the flat block to form two parallel cutting edges therewith, and two other opposed edge surfaces which are recessed centrally of their major dimension to form sideward projections of the cutting edges at the corners of the major faces. The recesses accommodate the sideward projections of the cutting edges of the adjacent inserts in an interfitting array of inserts along a single chip gullet in which the several inserts sweep contiguous concentric segments of a more extensive uninterrupted cutting path.
Claims6
An on-edge insert for milling cutters comprising a flat, six-sided block of cutting material having two major parallel plane faces constituting the seating and clearance faces respectively of the insert and two opposed minor edge surfaces providing two parallel cutting edges of equal rake angle by their respective intersections with at least one of said major faces and constituting the rake faces of the insert, said block having two additional opposed minor edge surfaces extending between said two major faces and said two first-mentioned minor edge surfaces, each of said last-mentioned minor edge surfaces being complementarily shaped by an indentation centrally of its major dimension to define a lateral projection of the block at each corner of the major faces and a recess in each of said last-mentioned minor edge surfaces extending between the lateral projections thereof and between said major faces to receive therein the lateral projection of an adjacent like insert in an interfitting array of such inserts with circumferentially offset cutting edges collectively constituting an uninterrupted effective cutting edge.
Dependencies are inferred from the claim text.