A holding device for holding a casting core in a casting mold, especially in a die-casting mold, includes a plurality of clamping sections which are positioned in relation to each other in such a way that a clamping region for a casting core is formed.

A holding device for holding a casting core in a casting mold, especially in a die-casting mold, includes a plurality of clamping sections which are positioned in relation to each other in such a way that a clamping region for a casting core is formed.

The invention relates to a method for determining the position of the cores in an injection mould, comprising the steps essentially consisting of: selecting a core R.sub.rep in a population of cores with the least difference from the mean of the measured differences between k cores and the theoretical three-dimensional spatial model, positioning this core R.sub.rep in space relative to at least one of the functional faces of a theoretical three-dimensional spatial model of the core, and repositioning core support points so that they can support the core R.sub.rep in the position corresponding to its repositioning in space performed in the previous step.

The invention relates to a method for determining the position of the cores in an injection mould, comprising the steps essentially consisting of: selecting a core R.sub.rep in a population of cores with the least difference from the mean of the measured differences between k cores and the theoretical three-dimensional spatial model, positioning this core R.sub.rep in space relative to at least one of the functional faces of a theoretical three-dimensional spatial model of the core, and repositioning core support points so that they can support the core R.sub.rep in the position corresponding to its repositioning in space performed in the previous step.

A component according to an exemplary aspect of the present disclosure includes, among other things, a first cavity, a second cavity and a rib between the first cavity and the second cavity, the rib including a first rib surface that is substantially flat and a second rib surface that is tapered.

A component according to an exemplary aspect of the present disclosure includes, among other things, a first cavity, a second cavity and a rib between the first cavity and the second cavity, the rib including a first rib surface that is substantially flat and a second rib surface that is tapered.

A manufacturing process for blades of a turbomachine, e.g. a gas turbine engine for an aircraft. In the process: a) a ceramic core piece that comprises at least two ceramic core elements and a clamping part that connects the ceramic core elements, is positioned in a wax forming device, subsequently; b) a molten wax material is applied to the outside of the ceramic core piece in the wax forming device and the wax is allowed to solidify, and subsequently; c) at least two turbomachine blades are cast using a crystallographically-oriented metal casting process and the wax and the ceramic core piece are removed.

The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

A method locates and maintains a core in fixed space relationship within the interior of a shell mould. The method provides at least one pin extending into the core with at least one axial end of the pin protruding from the core. A wax pattern having an outer surface is formed by encasing the core and at least one protruding axial end of the pin in wax such that at least one protruding axial end of the pin terminates at the outer surface of the wax pattern. A shell mould is formed around the wax pattern such that, upon removal of the wax pattern, and in a subsequent casting process for production of hollow metal components, at least one protruding axial end of the pin abuts the shell mould, thus fixing the pin and maintaining a position of the core relative to the mould. The protruding axial end of the pin has an enlarged head.