In order to improve a usage of machine tool components, it is provided that the machine tool component is formed at least partially, in particular essentially, or alternatively completely from an amorphous metal. It is provided that the tool component is produced using injection molding or 3D printing or plastic deformation.

A compacting device and a method for producing a cutting insert green body by compacting a powder is provided. A die contributes to defining a die cavity that defines the shape of the green body to be formed. The die includes an upper die part defining an upper part of said die cavity together with an upper punch, a lower die part defining a lower part of the die cavity together with a lower punch, and intermediary die members, which are moveable in a plane perpendicular to a pressing axis and which define an intermediary part of the die cavity. The intermediary part of the die cavity defines an undercut portion, which extends circumferentially around the green body to be formed and which includes three or more peripheral indexing grooves in the green body.

A method for manufacturing a cutter includes: placing a can into a press, the can comprising superhard powder, a metallic frame embedded in the superhard powder, and catalyst; operating the press to sinter the superhard powder, thereby forming a polycrystalline superhard cutting head; and exposing at least a portion of the polycrystalline superhard cutting head and the frame to acid for removing at least a portion of the catalyst from the polycrystalline superhard cutting head. The leaching frame comprises a plurality of branches. Each branch has an inner end located adjacent to a front face of the cutting head and an outer end located adjacent to a side of the cutting head. The acid tunnels into the polycrystalline superhard cutting head by dissolving the leaching frame.

A cubic boron nitride polycrystal includes cubic boron nitride, the cubic boron nitride having an average grain size of not more than 150 nm, the cubic boron nitride polycrystal having a crack generation load of not less than 25 N in a breaking strength test in which an R200 m diamond indenter is used to apply a load at a rate of 100 N/min.

A cubic boron nitride polycrystal includes cubic boron nitride, the cubic boron nitride having an average grain size of not more than 150 nm, the cubic boron nitride polycrystal having a crack generation load of not less than 25 N in a breaking strength test in which an R200 m diamond indenter is used to apply a load at a rate of 100 N/min.

A method for manufacturing a cutting insert having a through-hole that extends in a direction that is non-parallel to the main pressing direction. The method includes the steps of moving first and second punches within a die cavity toward each other along a first pressing axis and compacting a powder around a core rod into a cutting insert green body, wherein, during at least a portion of the compaction step, the core rod is turned a predetermined angle in alternating direction around its longitudinal axis.

A method for manufacturing a cutting insert having a through-hole that extends in a direction that is non-parallel to the main pressing direction. The method includes the steps of moving first and second punches within a die cavity toward each other along a first pressing axis and compacting a powder around a core rod into a cutting insert green body, wherein, during at least a portion of the compaction step, the core rod is turned a predetermined angle in alternating direction around its longitudinal axis.