Patent application number | Description | Published |
20090205800 | Systems and Methods for Reducing the Potential for Riser Backfilling During Investment Casting - Systems and methods for reducing the potential for riser backfilling during investment casting are provided. In this regard, a representative method for performing investment casting includes: providing a mold having an opening communicating with an interior, the interior having a part cavity and a riser; providing an insert; and using the insert to form a physical barrier to reduce a potential for molten metal to backfill into the riser while the molten metal is introduced into the interior of the mold via the opening. | 08-20-2009 |
20100000698 | CASTING SYSTEM FOR INVESTMENT CASTING PROCESS - A casting system includes a core and a shell positioned relative to the core. A barrier coating is applied on at least one of the core and the shell. | 01-07-2010 |
20100084106 | PROCESS FOR CASTING COLUMNAR GRAIN AIRFOIL WITH PREFERENTIAL PRIMARY ORIENTATION - A molding process utilizes a seed with a columnar grain structure for defining a desired grain structure in a completed casting. The seed is received within a seed cavity of a mold. The molten material adopts the orientation of the columns defined within the seed during solidification to form a completed molded article having a desired columnar grain structure. | 04-08-2010 |
20100247322 | INTERNALLY SUPPORTED AIRFOIL AND METHOD FOR INTERNALLY SUPPORTING A HOLLOW AIRFOIL DURING MANUFACTURING - A hollow airfoil and a method for manufacturing a hollow airfoil is provided. The method includes the steps of: providing a first airfoil portion, which first portion has a wall with an interior surface and an exterior surface, and one or more ribs extending out from the interior surface; providing a second airfoil portion having a wall with an interior surface and an exterior surface; wherein the first airfoil portion and the second airfoil portion have mating geometries in which the one or more ribs extend between the interior surfaces of the walls of the first and second airfoil portion to form at least one internal cavity defined by the interior surface of the first portion wall, one or more of the ribs, and the interior surface of the second portion wall, and wherein the airfoil includes at least one exterior port disposed in one of the first airfoil portion or the second airfoil portion, or is formed between the first and second airfoil portions, which at least one exterior port is in fluid communication with the at least one cavity; disposing a support material within the at least one internal cavity allowing the support material to be in contact with the one or more ribs, which support material is operative to structurally support the one or more ribs; attaching the first and second airfoil portions together; and removing the support material from the at least one internal cavity through the at least one exterior port. | 09-30-2010 |
20120043046 | PROCESS FOR CASTING COLUMNAR GRAIN AIRFOIL WITH PREFERENTIAL PRIMARY ORIENTATION - A molding process utilizes a seed with a columnar grain structure for defining a desired grain structure in a completed casting. The seed is received within a seed cavity of a mold. The molten material adopts the orientation of the columns defined within the seed during solidification to form a completed molded article having a desired columnar grain structure. | 02-23-2012 |
20120111523 | MELTING UNIT FOR A DIE CASTING SYSTEM - A die casting system includes a die, a shot tube, a shot tube plunger and a melting unit. The die includes a plurality of die components that define a die cavity. The shot tube is in fluid communication with the die cavity. A shot tube plunger is moveable within the shot tube to communicate a charge of material into the die cavity. The melting unit is positioned relative to the die and includes a bottom portion having an opening for selectively releasing a charge of material through the bottom portion. | 05-10-2012 |
20120111525 | HIGH TEMPERATURE DIE CASTING APPARATUS AND METHOD THEREFOR - A high temperature die casting system includes a die casting tool that has dies that are adapted for forming a component. The die casting tool is operable to heat and maintain a temperature of the dies above 500° F./260° C. At least a portion of the die casting tool that is exposed for contact with molten die casting material has a substrate and barrier coating on the substrate to protect from the molten die casting material. | 05-10-2012 |
20120111526 | DIE CASTING SYSTEM AND METHOD UTILIZING HIGH MELTING TEMPERATURE MATERIALS - An example die casting system includes a die comprised of a plurality of die components that define a die cavity configured to receive a molten metal. One of the die components comprises a material that is not reactive with the molten metal and has a melting temperature above 815 degrees Celsius. | 05-10-2012 |
20120112391 | CRUCIBLE FOR MASTER ALLOYING - A crucible includes a composite of least two materials. The two materials are selected from a group consisting of alumina, calcia, yttria, erbia, gadolinia, magnesia, hafnia, and zirconia in a composition that has better resistance to reaction with hafnium from a molten hafnium-containing alloy than a nominal crucible composition of 70 wt % magnesia and 30 wt % alumina. | 05-10-2012 |
20120114491 | DIE CASTING TO PRODUCE A HYBRID COMPONENT - An example die casting system includes a die that defines a cavity having a first section and a second section. The first section is configured to receive a first portion of a component. The second section is configured to receive a molten material. The die holds the molten material as the molten material solidifies to form a second portion of the component. | 05-10-2012 |
20120199305 | SHOT TUBE PLUNGER FOR A DIE CASTING SYSTEM - A shot tube plunger of a die casting system includes a tip portion and a thermal control scheme at least partially disposed within the shot tube plunger. The thermal control scheme includes a fluid passageway having at least one coiled portion that receives a fluid to adjust a temperature of the shot tube plunger. | 08-09-2012 |
20120211193 | DIE CASTING SYSTEM AND CELL - A die casting system includes a die, a shot tube, a melting system and a vacuum system. The die includes a plurality of die components that define a die cavity. The shot tube is in fluid communication with the die cavity and is operable to deliver a charge of material to the die cavity. The melting system is positioned adjacent to the die and includes an alloy loader, a melting unit and a crucible. The vacuum system defines a first chamber and a second chamber separated from the first chamber by an isolation valve. The melting system is disposed within the first chamber, and the die is disposed within the second chamber. | 08-23-2012 |
20130004788 | SYSTEM AND METHOD FOR HIGH TEMPERATURE DIE CASTING TOOLING - A casting die comprises a main cavity, a first reservoir and a first vent. The main cavity has a first interior volume for receiving a first molten volume of metal. The first reservoir is in serial fluid communication with the main cavity for storing a first molten backfill volume of metal to accommodate solidification shrinkage in the main cavity. The first vent is in serial fluid communication with the first reservoir. | 01-03-2013 |
20130025816 | DIE CASTING SYSTEM AND METHOD - A die casting system includes a die having a plurality of die elements that define a die cavity. A charge of material is received in the die cavity. The charge of material may comprises a refractory metal intermetallic composite based material system. The charge of material may also comprise a composite material. | 01-31-2013 |
20130026338 | RAPID CASTING ARTICLE MANUFACTURING - A method of manufacturing a casting article for use in a casting process includes rapidly forming the casting article out of a metallic material. A ceramic coating is applied to an exterior surface of the casting article. | 01-31-2013 |
20130146266 | SHOT TUBE PLUNGER FOR A DIE CASTING SYSTEM - A method for controlling a temperature of a portion of a die casting system having a shot tube plunger, according to an exemplary aspect of the present disclosure includes, among other things, communicating a fluid through a fluid inlet of a fluid passageway of a thermal control scheme of the shot tube plunger. The fluid circulates through the fluid passageway of the thermal control scheme to selectively adjust a temperature of the shot tube plunger. The fluid is discharged through a fluid outlet of the fluid passageway. | 06-13-2013 |
20130171020 | HIGH TEMPERATURE DIRECTIONALLY SOLIDIFIED AND SINGLE CRYSTAL DIE CASTING - A high-temperature die casting apparatus comprises a die and a chiller. The die has a first die plate and a second die plate with respective first and second recesses defining a main part cavity and gating. The apparatus can be used for die casting metal alloys having a melting temperature of at least about 1500° F. (about 815° C.). | 07-04-2013 |
20140178244 | GASEOUS BASED DESULFURIZATION OF ALLOYS - A method for desulfurizing a metal alloy comprises heating the metal alloy to a molten state. A gaseous desulfurizing compound is bubbled through the molten alloy to form a solid sulfur-containing waste phase and a molten reduced-sulfur alloy phase. The solid waste phase and the molten reduced-sulfur alloy phase are separated. The gaseous desulfurizing compound includes a constituent element selected from the group: alkali metals, alkaline earth metals, and rare earth metals. | 06-26-2014 |
20140182809 | MULLITE-CONTAINING INVESTMENT CASTING CORE - An investment casting core includes a mullite-containing core body. The body can be made by providing a mullite-containing powder, forming the powder into a green body, and sintering the green body to form the mullite-containing core body. | 07-03-2014 |
20140186656 | Spallation-Resistant Thermal Barrier Coating - A coated article has: a metallic substrate; a bondcoat; and a thermal barrier coating (TBC). The bondcoat has an MCrAlY first layer and an MCrAlY second layer, the second layer having a lower Cr content than the first layer. | 07-03-2014 |
20140205493 | HIGH TEMPERATURE DIRECTIONALLY SOLIDIFIED AND SINGLE CRYSTAL DIE CASTING - A high-temperature die casting die includes a first die plate with a first recess and a second die plate with a second recess, the first and second recesses defining a main part cavity and gating. A grain selector is in fluid communication with the main cavity, and an in situ zone refining apparatus is adapted to apply a localized thermal gradient to at least one of the first and second die plates. The localized thermal gradient and the at least one die plate are movable relative to each other so as to apply the localized thermal gradient along a first direction extending from the grain selector longitudinally across the main part cavity. | 07-24-2014 |
20150037602 | SYSTEM AND METHOD FOR HIGH TEMPERATURE DIE CASTING TOOLING - A die casting and a method for die casting a metal having a melting temperature of at least 1500° F. (815° C.) are disclosed. A molten volume of metal is injected to a casting die which includes a main cavity corresponding to an as-cast structure, a first reservoir, and a first runner arrangement. The first runner arrangement is configured to fluidly communicate molten metal between the first reservoir and the main cavity. After the injecting step, the casting die is sealed. The injected molten volume of metal is equiaxially solidified generally from a first portion of the main cavity distal to the first reservoir toward a second portion of the main cavity proximal to the first reservoir. During the equiaxial solidifying step, the main cavity is backfilled with at least a portion of the injected molten volume via the first runner arrangement. | 02-05-2015 |
20150060002 | DIE CASTING SYSTEM AND CELL - A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber. | 03-05-2015 |