A moulding assembly for aluminothermic welding of metal rails includes at least one mould part configured to come into contact with at least one other mould part and rails to be welded to form a mould cavity in which the ends of the metal rails to be welded are arranged and into which a molten metal is cast to weld the metal rails, wherein each mould part comprises includes a seating configured to be placed in contact least one of the rails, the seating including a groove into which a sealing product made of intumescent material is applied.

Methods for forming composite components with sealed bi-material interfaces include applying a sacrificial material to a surface of a substrate, over-molding the substrate and the sacrificial material with an over-molding material such that the over-molding material covers at least a portion of the sacrificial material and at least one surface of the substrate, removing the sacrificial material by deflagration to form a composite component with a channel between the substrate and the over-molding material, introducing an uncured sealant into the channel, and curing the sealant to form a sealed composite component. The method can further include removing a portion of the sealant prior to the sealant fully curing. The sealed composite component can include a passage, encircled by the channel, extending between the substrate and the over-molding material. The substrate can be a metal, a polymer, a polymer composite, a ceramic, or a continuous fiber composite material.

A method for delivering a flowable material into a mold or to infiltrate a preformed component, a fiber preform, or a green body includes: providing a crucible having a body configured as a reservoir to hold the flowable material; adding a metal, a metal alloy, or combination thereof into the body of the crucible, the metal or metal alloy having a predetermined melting point; heating the crucible with the metal or metal alloy contained therein to a temperature that is at or above the melting point of the metal or metal alloy; allowing the metal or metal alloy to melt to form the flowable material; and creating a siphon such that the molten metal or metal alloy flows from the body of the crucible to infiltrate the preformed component or to fill the mold.

The invention relates to a method for producing a cooling device (10), which has at least one hollow body (30) made of a first material having good thermal conduction and a base body made of a second material having good thermal conduction, and a pre-product for the production of a cooling device (10) and a cooling device (10) for an electrical assembly and an electrical assembly having a cooling device of this kind. The hollow body (30) is coated on the outside with a third material and is filled on the inside with the third material, which has a lower melting temperature than the first material and the second material, wherein the filling (5) completely fills the hollow body and is then cooled, wherein the filled hollow body (30) is placed in a die-casting mould, wherein the second material is introduced into the die-casting mould as die casting with a first temperature and flows around the hollow body (30) at least partially, wherein the die casting melts off the third material of the surface coating (36) and melts on the first material of the hollow body (30) so that at least in regions an integral connection is formed between the die casting of the second material, which forms the base body (20), and the first material of the hollow body (30), wherein the die casting of the second material becomes rigid and solid, wherein during the solidification phase, the die casting of the second material heats the filling (5) made of the third material in the interior of the hollow body (30) until the melting temperature is reached, and wherein the melted third material is removed from the hollow body (30) under pressure.

The present invention relates to a method of manufacturing a cooling device using a heat pipe in which, using casting, the heat pipe is embedded inside a housing, and the method includes a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable, a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity, a melt injecting step in which the melt is injected into the cavity to surround the pipe, a cooling and withdrawing step in which the injected melt is cooled and a molded product is withdrawn, an injecting step in which a working fluid is injected into the pipe through an injection end, and a finishing step in which, after the injecting step, the pipe is sealed.

Methods for manufacturing a turbine nozzle are provided. A plurality of nozzle segments is formed. Each nozzle segment comprises an endwall ring portion with at least one vane. The plurality of nozzle segments are connected to an annular endwall forming a segmented annular endwall concentric to the annular endwall with the at least one vane of each nozzle segment extending between the segmented annular endwall and the annular endwall.

A method for manufacturing a golf club head having an embedded heterogeneous material includes preparing a shell mold having a cavity and a functional member embedded into the shell mold via an embedded portion, filling the cavity with a metal liquid to completely dip the non-embedded portion of the functional member in the metal liquid; breaking the shell mold to obtain a cast product, separating the golf club head cast member from the cast product to obtain a semi-finished golf club head having a casting material and a heterogeneous material, and pressing the casting material of the semi-finished golf club head to securely engage the casting material with the heterogeneous material. The functional member includes a non-embedded portion connected to the embedded portion and located in the cavity. The cast product includes a golf club head cast member.

A mold assembly for use in forming a component having an outer wall of a predetermined thickness includes a mold and a jacketed core. The jacketed core includes a jacket that includes a first jacket outer wall coupled against an interior wall of the mold, a second jacket outer wall positioned interiorly from the first jacket outer wall, and at least one jacketed cavity defined therebetween. The at least one jacketed cavity is configured to receive a molten component material therein. The jacketed core also includes a core positioned interiorly from the second jacket outer wall. The core includes a perimeter coupled against the second jacket outer wall. The jacket separates the perimeter from the interior wall by the predetermined thickness, such that the outer wall is formable between the perimeter and the interior wall.

A mold assembly for use in forming a component having an outer wall of a predetermined thickness is provided. The mold assembly includes a mold that includes an interior wall that defines a mold cavity within the mold. The mold assembly also includes a jacketed core positioned with respect to the mold. The jacketed core includes a jacket that includes an outer wall. The jacketed core also includes a core positioned interiorly of the jacket outer wall. The jacket separates a perimeter of the core from the mold interior wall by the predetermined thickness, such that the outer wall is formable between the perimeter and the interior wall.

Methods are provided for manufacturing a component. In one method, first material is cast into a first body. At least a portion of the first body is machined. Second metal material is cast onto at least the machined portion of the first body to form a monolithic second body. A first portion of the second body is formed by the first metal material. A second portion of the second body is formed by the second metal material. The second metal material is different from the first metal material.