Abstract: A tool in the form of a honeycomb cutter/chip breaker assembly for conveniently and efficiently machining a workpiece of honeycombed material or the like. The assembly includes a honeycomb cutter member having a cutting knife and a shaft. The cutting knife is disc-shaped with a sharp peripheral edge and is formed integrally with the outboard end of the shaft for concurrent rotation therewith. The inboard end of the shaft is adapted to be received by rotational motion imparting mechanisms. The assembly also includes a chip breaker/chaf remover device having a central bore mountable over the shaft with its outboard face in contact with the inboard face of the cutting knife for rotation therewith during operation and use. The radially outward edges of the chip breaker/chaf remover device are formed as sharp breaker edges for breaking the material cut by the cutting knife.

Abstract: A cutting device for cutting thin-walled honeycomb profiles of metal or plastics for airplane technology includes a cutter which has sharply ground saw-shaped teeth at its periphery; the steep flanks of individual teeth extend opposite to the direction of rotation of the cutter.

Abstract: The proposed cutting tool comprises a holder, wherein a working head is rotatably mounted. The working head carries at least one edge whose cutting lip is defined by intersecting of its face and relief surfaces. The cutting tool incorporates a chip-breaking device, according to the invention, which is essentially a plate made fast on the holder at an angle to the face surface of the edge to provide for chip disposal from the cutting zone and arranged in such a manner that one of its edges crosses the cutting lip of the tool edge and is located as close as possible to the edge face surface, provision being made for the working head to freely rotate.

Abstract: A rotary cutting tool according to the invention comprises a supporting element secured in the tool body opposite to the cutting zone, said element interacting with the tool spindle and intended to load the spindle with forces which approach closely the cutting forces in magnitude but are opposite to them in direction. The rotary cutting tool according to the invention features high stiffness and resistance to vibration thereby ensuring higher accuracy, quality and efficiency of machining.

Abstract: A polygonal insert of hard cutting material used in single and multiple toolholding means to receive the same, the insert comprising a wafer having conjunctive side walls lying in planes intersecting each other and parallel to the axis of the insert, one or more faces of the insert normal to the sides being depressed to form a peripheral ridge around the insert composed of a cutting land, either negative or positive, and downwardly extending walls to provide a polygonal recess on the face of the insert. A chip breaker insert with the same configuration as the basic insert with smaller lateral dimensions is provided to position selectively within the peripheral walls of the ridge to be clamped in place as a chip breaker. Also, a support anvil is utilized below the insert supporting the face within the ridge walls on the base of the recess in the cutting holder.