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8171978 |
Castings, casting cores, and methods
The pattern has a pattern material and a casting core combination. The pattern material has an airfoil. The casting core combination is at least partially embedded in the pattern material. The...
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8122583 |
Method of machining parts having holes
Removing of a casting core from a metal casting leaves at least one opening in a surface of the metal. The opening is filled with a sacrificial material. The metal and sacrificial material are...
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8096343 |
Method for precision casting of metallic components with thin passage ducts
In precision casting of metallic components with very thin passage ducts, in particular turbine blades, by the lost-wax process, the ceramic core pins provided for forming the passage ducts are...
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8091608 |
Method of forming a hollow sand core
A method of forming a hollow sand core involves placing a preform into a cavity defined in a mold, where the preform has a predetermined configuration. A granular material is then introduced into...
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8082972 |
System for assembly wax trees using flexible branch
A process for creating a lost wax tree, including the steps of assembling a wax tree having a wax pattern and a wax runner, using automated equipment to flex either the wax tree or the wax pattern...
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8083511 |
Systems and methods involving pattern molds
System and methods involving pattern molds are provided. In this regard, a representative system includes a mold assembly unit having a movable fixture holder operative to engage a portion of a...
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8025094 |
Yttria-based refractory composition
Method for producing a mold for use in casting reactive metals comprising preparing a slurry of a yttria-based refractory composition and a binder, and using said slurry as a mold facecoat by...
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8020606 |
Method of making a wax mold for a golf club head
A method of making a wax mold for a golf club head includes the steps of: a) positioning a male die in a cavity of a female die; b) injecting and filling dissolvable wax into a gap between an outer...
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8006744 |
Method and system for drying casting molds
A system and method of drying casting molds for forming metal parts is provided. In one embodiment, the method includes providing a casting mold comprised of a meltable pattern coated with a...
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7967055 |
Non-oxidizable coating
A substrate is coated by applying an essentially pure aluminum first layer to a surface of the substrate. At least a first portion of the first layer is oxidized so as to provide a protective...
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7946334 |
Sprue formers
A sprue former of the type used to produce a casting mold includes a generally hollow body or a body having hollow sections. The body includes an inlet forming member and at least one first...
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7942189 |
Reusable wax tree sprue rod assembly for tree making in lost wax investment casting and method use
The present invention is a novel sprue rod assembly for lost wax investment casting and its method of use. The sprue rod is reusable because it is made of material with a high melting point, such...
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7913743 |
Method of forming a pattern
A method of forming a pattern includes providing an actual core having dimensions which are different from dimensions of an ideal core. A best fit spatial relationship of the actual core to a...
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7900685 |
Investment casting
In an investment casting procedure using microwave energy as the heat source virgin wax models are attached to a spree of wax-type pattern material incorporating a susceptor, the spree having a...
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7866371 |
Lost wax investment casting gating fixtures
A method of forming a gating fixture for a lost wax casting process includes determining an optimal orientation of a gate in relation to a part, and forming a fixture that can repeatably be used to...
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7753104 |
Investment casting cores and methods
A method involves forming a core assembly. The forming includes molding a first ceramic core over a first refractory metal core to form a core subassembly. The subassembly is assembled to a second...
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7735542 |
Support structure for a printed model in multi-component dental appliances
Dental appliances including multiple components and a system and method for constructing the same are disclosed herein. The dental components are designed to fit together to form the dental...
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7686065 |
Investment casting core assembly
In a method for manufacturing a combination investment casting core, a plurality of cores are each formed by cutting a metallic sheet to define a first portion and a number of separate second...
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7686068 |
Blade outer air seal cores and manufacture methods
A blade outer air seal (BOAS) casting core has first and second end portions and a plurality of legs. Of these legs, first legs each have: a proximal end joining the first end portion; a main body...
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7681627 |
Primary shaping method for a component comprising a microstructured functional element
A method is disclosed for molding a component with at least one microstructured functional element, which is configured intentionally with a defined structure, in relief, at a defined point on the...
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7669637 |
Impeller for supercharger and method of manufacturing the same
A lost-wax cast impeller for a supercharger having no parting line on a hub surface and a blade surface in each space demarcated by pairs of long blades adjacent to each other and having excellent...
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7650926 |
Blade outer air seals, cores, and manufacture methods
A blade outer air seal (BOAS) casting core has first and second end portions and a plurality of legs. Of these legs, first legs each have: a first end joining the first end portion; a main body...
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7594529 |
Investment casting process
A method for the production of a shell mould. The method comprises the sequential steps of: (i) dipping a preformed expendable pattern into a slurry of refractory particles and colloidal liquid...
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7563397 |
Solid free-form fabrication methods for the production of dental restorations
Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a shell or die used in the manufacture of a dental restoration....
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7513296 |
Clustered investment-casting shells for casting thin-walled golf club-heads of titanium alloy
Investment-casting shells are disclosed that have at least one cluster of individual club-head casting molds for casting thin-walled, titanium alloy club-heads at high process yield and low...
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7448433 |
Rapid prototype casting
Methods for rapid prototype casting metal components, wherein the metal components are cast in a secondary ceramic mold, the secondary ceramic mold is cast in a primary mold, and the primary mold...
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7370688 |
Lost wax moulding method with contact layer
A method of manufacture of a multilayer ceramic shell mould whereof at least one contact layer out of a wax master pattern or a part to be manufactured, or other similar material, includes a step...
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7360578 |
Method of joining wax patterns for fabricating golf club head
In one aspect, the present invention relates to a method of joining wax patterns for fabricating a golf club head. In one embodiment, the method has the step of providing a prefabricated first wax...
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7325585 |
Dental prosthetic forming system
A system for forming a dental prosthetic using the lost wax method utilizes a unitary pattern assembly to create a unitary cavity in a mold incorporating a dental prosthetic pattern cavity portion,...
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7318466 |
Lost wax casting method
A method of manufacture of a multilayer ceramic shell mould out of a master pattern includes the steps of dipping the master pattern in a first slip containing ceramic particles and a binder,...
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7290584 |
System and method for welding wax patterns
A wax pattern welding system and method for producing a pool of molten wax on an area of a surface of a wax component is provided. The wax pattern welding system includes a bar of heat conducting...
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7287571 |
Lost foam casting pattern
Pattern for the lost foam casting process including a pouring-basin-forming portion, a sprue-forming portion, a runner-forming portion, a gate-forming portion, and an inline-riser-forming portion....
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7281566 |
Method for manufacturing mold
A method for manufacturing a mold (70), which comprises a step of forming a layer (31) of combustible powdery particles (32) around a wax mold (21), which is a lost pattern, a step of forming a...
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7278461 |
Manufacturing method of titanium compressor wheel
The present invention provides a manufacturing method of high precision titanium compressor wheel in which by removing pads attached on an entire surface entirely as a machining allowance in...
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7278465 |
Investment casting slurry composition and method of use
An investment casting method involves producing a casting shell by applying a hardenable moist mixture to a sacrificial pattern. To hasten the hardening of the moist mixture to create the shell, a...
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7270166 |
Fugitive pattern assembly and method
A fugitive pattern assembly is made by preforming one or more fugitive patterns of an article to be cast, placing the preformed patterns in an injection die, and injecting fluid gating material...
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7246652 |
Ceramic core recovery method
A method to recover wax from wax patterns used in investment casting using a lost wax technique without damaging incorporated ceramic cores is disclosed that includes subjecting the wax pattern to...
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7231955 |
Investment casting mold design and method for investment casting using the same
A method for investment casting includes the steps of positioning a base plate relative to a die; molding a first material between the die and at least a first surface portion of the base plate;...
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7216691 |
Mold-removal casting method and apparatus
A process for the casting of metals includes the steps of providing a mold, delivering a molten metal into the mold, solidifying the molten metal, and removing at least a portion of the mold. The...
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7204296 |
Method of removing a fugitive pattern from a mold
A method is provided for removing a fugitive pattern, such as wax or other meltable pattern material, residing inside of a refractory mold by discharging condensable vapor such as steam inside the...
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7198091 |
Method for securing gemstones in an effectively invisible setting
The invention relates to a method for producing an effectively invisible gemstone setting by casting a wax model of the setting and inserting a flange or post between the stones and into the floor...
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7173079 |
Casting material for producing casting molds for casting high-melting point materials
The casting-mold material designed to manufacture casting molds used in casting high melting-point substances. The casting mold formed from a powder component containing magnesium oxide and...
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7152656 |
Manufacturing method for a wax pattern for making a golf club head
A manufacturing method for a hybrid one-piece design of a wax pattern of a golf club head includes the steps of: prefabricating a first wax pattern in a first molding assembly, the first wax...
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7150307 |
Lost foam casting apparatus and method for creating hollow gating
A method and apparatus is disclosed for forming a metal casting sprue for a lost foam casting process, the sprue formed in sand for receiving molten metal and directing the molten metal to a foam...
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7147032 |
Process and apparatus for assembly of wax trees
In a process for the assembly of wax trees, a wax runner is placed in a flat position, and a wax pattern is located adjacent to the wax runner. Both the wax pattern and the wax runner are heated...
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7121318 |
Lost pattern mold removal casting method and apparatus
A method and apparatus for the lost pattern casting of metals is disclosed. In the method, a pattern is formed from a material and a mold is formed around at least a portion of the pattern. The...
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7082984 |
Article casting method
The present invention is a method for casting a part having a complex shape or having a complex shape thereon. The method includes providing a pattern and securing at least one core to the pattern....
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7080678 |
Hollow jewelry ring design
There is provided a method or process for fabricating a hollow jewelry article which is hollowed or bored out. In accordance with this process, a metal ring model is prepared comprising a solid...
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7048030 |
Method of making a casting assembly
A method of making an investment or lost foam casting assembly of a first part movable with respect to a second part includes making first and second separate wax or foam patterns of portions of...
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7025110 |
Method and apparatus for setting odd-shaped precious stones
A piece of jewelry such a pendant is first cast in wax to provide a wax replica thereof. A gemstone is heated above the melting temperature of the wax replica and is pressed therein. Alternatively,...
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