A method of redistributing the binder phase of a cemented carbide mining insert having a WC hard-phase component, optionally one or more further hard-phase components and a binder includes the steps of providing a green cemented carbide mining insert; applying at least one binder puller selected from a metal oxide or a metal carbonate to only at least one local area of the surface of the green cemented carbide insert; sintering the green carbide mining insert to form a sintered cemented carbide insert; and subjecting the sintered cemented carbide insert to dry tumbling process executed at an elevated temperature of or above 100° C., preferably at a temperature of or above 200° C., more preferably at a temperature of between 200° C. and 450° C.

The invention relates to a piece comprising a first metal part and a second part made of an organic matrix composite material, in which the first part has a first connecting portion and the second part has a second connecting portion, the second connecting portion having at least one blind hole, the second connecting portion being totally or partially sandwiched between the first connecting portion and a metal fastening element, the fastening element being fastened to the first part on a portion other than the first connecting portion and extending into the at least one blind hole, whereby the first part and the second part are fastened to one another.

The invention relates to a piece comprising a first metal part and a second part made of an organic matrix composite material, in which the first part has a first connecting portion and the second part has a second connecting portion, the second connecting portion having at least one blind hole, the second connecting portion being totally or partially sandwiched between the first connecting portion and a metal fastening element, the fastening element being fastened to the first part on a portion other than the first connecting portion and extending into the at least one blind hole, whereby the first part and the second part are fastened to one another.

A method for producing a machining segment for a machining tool, where the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment, includes producing a green body by placing first hard material particles in a matrix material in a defined particle pattern, where the first hard material particles are placed in the matrix material with a respective projection with respect to the matrix material. The green body is compacted by pressure between a first press punch, which forms the underside, and a second press punch, which forms an upper side of the machining segment, to form a compact body, where the upper side is opposite from the underside. The compact body is processed by temperature or by infiltration to produce the machining segment.

A method for producing a machining segment for a machining tool, where the machining segment is connectable to a basic body of the machining tool by an underside of the machining segment, includes producing a green body by placing first hard material particles in a matrix material in a defined particle pattern, where the first hard material particles are placed in the matrix material with a respective projection with respect to the matrix material. The green body is compacted by pressure between a first press punch, which forms the underside, and a second press punch, which forms an upper side of the machining segment, to form a compact body, where the upper side is opposite from the underside. The compact body is processed by temperature or by infiltration to produce the machining segment.

A method for producing a machining segment for a machining tool includes producing a green body by placing first hard material particles in respective depressions of a first press punch and applying a first matrix material to the placed first hard material particles. The green body is compacted by pressure between the first press punch, which forms an upper side of the machining segment, and a second press punch, which forms an underside of the machining segment, to form a compact body. The compact body is processed by temperature or by infiltration to produce the machining segment.

A method for producing a machining segment for a machining tool includes producing a green body by placing first hard material particles in respective depressions of a first press punch and applying a first matrix material to the placed first hard material particles. The green body is compacted by pressure between the first press punch, which forms an upper side of the machining segment, and a second press punch, which forms an underside of the machining segment, to form a compact body. The compact body is processed by temperature or by infiltration to produce the machining segment.

A method and an apparatus for additive casting of parts is disclosed. The method may include: depositing, on a build table, a first portion of a mold, such that, the depositing may be performed layer by layer; pouring liquid substance into the first portion of the mold to form a first casted layer; solidifying at least a portion of the first casted layer; depositing a second portion of the mold, on top of the first portion of the mold; pouring the liquid substance into the second portion of the mold to form a second casted layer, on top of at least a portion of the first casted layer; and solidifying at least a portion of the second casted layer. The method may further include joining the first and second casted layers prior to the pouring of a third casted layer.

A method and an apparatus for additive casting of parts is disclosed. The method may include: depositing, on a build table, a first portion of a mold, such that, the depositing may be performed layer by layer; pouring liquid substance into the first portion of the mold to form a first casted layer; solidifying at least a portion of the first casted layer; depositing a second portion of the mold, on top of the first portion of the mold; pouring the liquid substance into the second portion of the mold to form a second casted layer, on top of at least a portion of the first casted layer; and solidifying at least a portion of the second casted layer. The method may further include joining the first and second casted layers prior to the pouring of a third casted layer.

A method of creating a functionally-graded multi-material (FGM) part in multi-material additive manufacturing includes providing a part digitized into voxels, generating a lattice structure having a series of repeating unit cells, where each is the smallest nonrepeating constituent of the lattice structure and is generated by a continuous surface defined by a continuous function. The method further includes taking an inverse volume of the lattice structure within the part, creating a material gradient by varying a thickness of the surface at the boundary between the lattice structure and the inverse volume, assigning one of the two FGM component materials to the voxels in the volume occupied by the lattice structure and assigning the other to the voxels occupied by the inverse volume, outputting the voxels each with a designated material, the lattice structure and the inverse volume forming a mechanical interlock at the interface of the two component materials.