| Patent application number | Description | Published |
|---|
| 20090026173 | METHOD AND APPARATUS FOR WELDING AN ARTICLE - Disclosed is a method for welding an article, the method including the steps of placing the article in an enclosure with walls that enclose the article on all sides, the enclosure having a heating device associated therewith, the heating device configured and sized to uniformly heat the article over at least a substantial entirety of the article, establishing a nonreactive atmosphere in the enclosure, operating the heating device to uniformly heat the article in the enclosure to a welding temperature over at least the substantial entirety of the article, and welding the article in the enclosure while maintaining the welding temperature over at least the substantial entirety of the article. | 01-29-2009 |
| 20100237134 | Repair process for coated articles - A process for repairing a damaged portion of a thermal barrier coating on a turbine engine component includes sintering a mixture comprising particles of a bond coat and particles of a brazing alloy to form a composite preform; depositing a thermal barrier coating on the composite preform; contacting the composite preform with the deposited thermal barrier coating with an uncoated surface of the damaged portion of the turbine engine component; and heating the composite preform with the deposited thermal barrier coating to a temperature effective to form a brazed joint between the composite preform and the uncoated surface of the damaged portion of the turbine engine component. | 09-23-2010 |
| 20110042361 | SYSTEM AND METHOD OF DUAL LASER BEAM WELDING OF FIRST AND SECOND FILLER METALS - A system and method for laser beam welding at least two adjacent superalloy components involves substantially simultaneous formation of a base weld with a first filler metal placed between the components and cap weld with second filler metal formed over the base weld. A shim is inserted between the components, which may optionally be formed with a groove along the joint surface. A filler wire is fed to a location over the given surface or within the optional groove. Two lasers or a laser and coupled beam splitter supply first and second laser beams that are applied at focal points separated by a predetermined distance (e.g., 0.05-1.5 cm). The first laser beam is used to form a base weld with the first filler metal between the components, and the second laser beam is used to form a cap weld with the second filler metal on top of the base weld. | 02-24-2011 |
| 20110064584 | APPARATUS AND METHOD FOR A TURBINE BUCKET TIP CAP - A turbine bucket that includes a pressure side, a suction side opposite the pressure side, and a rib extending between the pressure side and the suction side. A tip cap is attached to the pressure side and the suction side and covers the rib. The tip cap includes a precipitation hardened material and a passage aligned with the rib. A method for assembling a turbine bucket having a pressure side and a suction side and a rib extending between the pressure side and suction side. The method includes receiving a tip cap made from a precipitation hardened material and having a passage in the tip cap. The method further includes locating the rib visually through the passage and aligning the passage with the rib. The method also includes welding the tip cap to the turbine bucket and to the rib. | 03-17-2011 |
| 20130255248 | THERMALLY-CONTROLLED COMPONENT AND THERMAL CONTROL PROCESS - A thermally-controlled component and thermal control process are disclosed. The thermally-controlled component includes thermally-responsive features. The thermally-responsive features are configured to modify a flow path to control temperature variation of the thermally-controlled component. The thermally-responsive features deploy from or retract toward a surface of the thermally-controlled component in response to a predetermined temperature change. The thermal control process includes modifying the flow path in the thermally-controlled component to control temperature variation of the thermally-controlled component and/or cooling a region of the thermally-controlled component through the thermally-responsive features deploying from or retracting toward a surface of the thermally-controlled component. | 10-03-2013 |
| 20130255931 | HEAT TRANSFER COMPONENT AND HET TRANSFER PROCESS - A heat transfer component and heat transfer process are disclosed. The heat transfer component includes thermally-responsive features positioned along a surface of the heat transfer component. The thermally-responsive features deploy from or retract toward the surface in response to a predetermined temperature change. The deploying from or the retracting toward of the thermally-responsive features increases or decreases a rate of heat transfer between a flow along the surface and the surface. The heat transfer process includes providing a heat transfer component having thermally-responsive features positioned along a surface of the heat transfer component; and increasing or decreasing a heat transfer rate between the surface and a flow by deploying the thermally-responsive features from or the retracting the thermally-responsive features toward the surface in response to a predetermined temperature change. | 10-03-2013 |
| 20130259640 | METALLIC SEAL ASSEMBLY, TURBINE COMPONENT, AND METHOD OF REGULATING AIRFLOW IN TURBO-MACHINERY - A metallic seal assembly, a turbine component, and a method of regulating flow in turbo-machinery are disclosed. The metallic seal assembly includes a sealing structure having thermally-responsive features. The thermally-responsive features deploy from or retract toward a surface of the sealing structure in response to a predetermined temperature change. The turbine component includes the metallic seal assembly. The method of regulating flow in turbo-machinery includes providing the metallic seal assembly and raising or retracting the thermally-responsive features in response to the predetermined temperature change. | 10-03-2013 |
| 20140042128 | ELECTRIC DISCHARGE MACHINING PROCESS, ARTICLE FOR ELECTRIC DISCHARGE MACHINING, AND ELECTRIC DISCHARGE COOLANT - An electric discharge machining process, an article for electric discharge machining, and an electrically-conductive electric discharge machining coolant are disclosed. The electric discharge machining process includes electric discharge machining a target region of a component. The article includes a non-electrically-conductive layer, an electrically-conductive layer, and a target region on the non-electrically-conductive layer. The electrically-conductive electric discharge machining coolant includes a hydrocarbon liquid and carbon powder suspended within the hydrocarbon liquid. | 02-13-2014 |
| 20140199164 | NICKEL-BASED ALLOY AND TURBINE COMPONENT HAVING NICKEL-BASED ALLOY - A nickel-based alloy and a turbine component are disclosed. The alloy includes, by weight, between about 0.8% and about 1.3% hafnium, between about 5.7% and about 6.4% aluminum, between about 7.0% and about 10.0% cobalt, up to about 0.1% carbon, up to about 8.7% chromium, up to about 0.6% molybdenum, up to about 9.7% tungsten, up to about 0.9% titanium, up to about 0.02% boron, up to about 0.1% manganese, up to about 0.06% silicon, up to about 0.01% phosphorus, up to about 0.004% sulfur, up to about 0.02% zirconium, up to about 1.8% niobium, up to about 0.1% vanadium, up to about 0.1% copper, up to about 0.2% iron, up to about 0.003% magnesium, up to about 0.002% oxygen, up to about 0.002% nitrogen, and a balance nickel. The turbine component is a turbine bucket, a turbine nozzle, or any other suitable turbine component including the alloy. | 07-17-2014 |
| 20140205490 | NICKEL-BASED ALLOY AND TURBINE COMPONENT HAVING NICKEL-BASED ALLOY - A nickel-based alloy and a turbine component including a nickel-based alloy are disclosed. The nickel-based alloy includes, by weight, between about 8% and about 11% cobalt, up to about 3% niobium, up to about 3% titanium, up to about 2.3% aluminum, up to about 3% tungsten, up to about 25% chromium, up to about 0.1% carbon, up to about 0.01% boron, and a balance nickel, or the nickel-based alloy includes, by weight, between about 1% and about 3% niobium, between about 1% and about 3% titanium, between about 2.1% and about 2.5% aluminum, up to about 3% tungsten, up to about 11% cobalt, up to about 25% chromium, up to about 0.1% carbon, up to about 0.01% boron, and a balance nickel. The turbine component includes the nickel-based alloy. | 07-24-2014 |
| 20140290892 | REFRACTORY SLURRY OF REDUCING CARBON PICKUP IN LOST FOAM CASTING, FOAM PATTERN AND PROCESSES FOR MANUFACTURING AND USING THE SAME - Refractory slurry for use in coating a foam cluster to provide a foam pattern for lost foam casting is provided. The slurry includes a catalyst capable of catalyzing reactions for vaporizing the foam cluster. A foam pattern with a refractory coating including the catalyst and processes for preparing the foam pattern and using the foam pattern are also provided. | 10-02-2014 |
| 20140314618 | CAST NICKEL-BASE ALLOYS INCLUDING IRON - A cast nickel-base superalloy that includes iron added substitutionally for nickel. The cast nickel base superalloy comprises, in weight percent about 1-6% iron, about 7.5-19.1% cobalt, about 7-22.5% chromium, about 1.2-6.2% aluminum, optionally up to about 5% titanium, optionally up to about 6.5% tantalum, optionally up to about 1% Nb, about 2-6% W, optionally up to about 3% Re, optionally up to about 4% Mo, about 0.05-0.18% C, optionally up to about 0.15% Hf, about 0.004-0.015 B, optionally up to about 0.1% Zr, and the balance Ni and incidental impurities. The superalloy is characterized by a □′ solvus temperature that is within 5% of the □′ solvus temperature of the superalloy that does not include 1-6% Fe and a mole fraction of □′ that is within 15% of the mole fraction of the superalloy that does not include 1-6% Fe. | 10-23-2014 |
