Cutting insert and shim for milling cutters

A shim defining a seat for a cutting insert, the shim comprising first and second portions, the first portion having substantially parallel upper and lower surfaces and defining front and rear ends spaced apart along a fore-aft direction of the shim;

• the upper surface including a plurality of serrations, wherein all serrations formed in the upper surface being oriented parallel to one another and extending transversely relative to the fore-aft direction, the second portion disposed at the front end of the first portion and forming a lip projecting downwardly past the lower surface.

A cutting tool comprising a cutter body defining a longitudinal axis, and at least one indexable end cutting insert for chipforming machining mounted in a serrated seat disposed at an axial end of the cutter body;

• the cutting insert including top and bottom surfaces interconnected by a plurality of side faces which intersect the top surface to form therewith a plurality of cutting edges, one of which being arranged to constitute an active cutting edge arranged generally parallel to the longitudinal axis;
• the bottom surface including a plurality of parallel serrations disposed in meshing engagement with corresponding serrations of the serrated seat;
• wherein all serrations formed in the bottom surface of the insert and in the serrated seat being oriented parallel to one another and extending transversely relative to both the active cutting edge and the longitudinal axis for resisting axial rearward forces applied to the insert during a cutting operation, with the insert being pressed against a transversely facing surface of the cutter body.

A cutter body defining a longitudinal axis and forming seats adapted to mount cutting inserts, the seats including end seats disposed at a front longitudinal end of the cutter body, the seats including a plurality of serrations;

• all serrations formed in the cutter body being oriented parallel to one another and extending transversely relative to the longitudinal axis.