United Technologies Corporation

Raytheon Technologies Corporation

Rtx Corporation

Other

Mario P Bochiechio

John Joseph Marcin

Carl R Verner

Steven J Bullied

Brian T Hazel

Alan David Cetel

Mark F Bartholomew

John F Blondin

Kevin W Schlichting

Paul M Lutjen

David A Litton

Michael J Maloney

Matthew A Devore

Dilip M Shah

John A Sharon

John R Farris

Paul Henry Zajchowski

James F Wiedenhoefer

Lea Kennard Castle

David Ulrich Furrer

Venkatarama K Seetharaman

James Thompson Beals

Melvin Freling

James Tilsley Auxier

Joseph Parkos, Jr

Kathryn S Read

Russell Albert Beers

Charles R Watson

David R Scott

Douglas Michael Berczik

Henry H Thayer

Donn Blankenship

Thomas J Watson

Wangen Lin

John J Marcin

Michael A Kmetz

Edward R Szela

Elisa M Zaleski

Shiela R Woodard

Max A Kaplan

Kevin W Chittenden

Gary M Tamiso

Jessica L Serra

Raymond P Ristau

Robert C Renaud

Dennis M Kraemer

Robert E LeBrun

Paul R Zamjohn

Charles A Roohr

Kerry Kozaczuk

Roy A Garrison

Eli N Ross

Paul D Genereux

Reade R Clemens

Bradford A Cowles

Enrique E Montero

Joseph A DePalma

Darryl Slade Stolz

Kirk C Newton

Paul D Bennett

Stephen D Rittenburg

Ashwin Sreekant Raghavan

Kenneth A Frisk

Lea D Kennard

Yee Ling Kwan

Emily K Kreek

Craig L Ostrout

Ashwin Raghavan

Michael A Czywczynski

Steven J Bulliad

Michael A Crywczynski

Aswin Raghavan

A method of assembling a part is provided and includes forming a first section of the part, defining, in the first section, passages with dimensions as small as 0.005 inches (0.127 mm), forming a second section of the part, metallurgically bonding the first and second sections whereby the passages are delimited by the first and second sections and executing the metallurgically bonding without modifying a condition of the passages.

Hybrid bonded configuration for blade outer air seal (BOAS)

A method for heat treating a superalloy component includes heating a superalloy component to a first temperature, cooling the superalloy from the first temperature to a second temperature at a first cooling rate in a furnace, and cooling the superalloy component from the second temperature to a final temperature at a second cooling rate. The second cooling rate is higher than the first cooling rate.

Method for heat treating components

A blade or vane has: an airfoil having an inner diameter (ID) end and an outer diameter (OD) end and having a suction side and a pressure side and a leading edge and a trailing edge; and an inner platform and/or attachment root at the ID end and/or an outer platform at the OD end. At least one of the inner platform, root, and/or outer platform comprises one or more pieces of a first alloy. One or more pieces of a second alloy form a leading edge section of the airfoil. One or more pieces of a third alloy form a trailing edge section of the airfoil. One or more pieces of a fourth alloy form a spar of the airfoil between the leading edge section and trailing edge section and extending into said at least one of the inner platform, root, and/or outer platform.

Multi-alloy turbine engine components and manufacture methods

An article comprises a first portion comprising a first alloy and a second portion comprising a second alloy that is metallurgically bonded to the first portion to form a monolithic article. The metallurgical bonding involves the application of an electrical current across the bond line and results in a retention of a metallurgical structure of the first portion and of a metallurgical structure of the second portion immediately adjacent to a bond line. The first portion has a first dominant property and the second portion has a second dominant property. The first dominant property is different from the second dominant property. The first dominant property is selected to handle operating conditions at a first position of the article where the first portion is located and the second dominant property is selected to handle operating conditions at a second position of the article where the second portion is located.

Hybrid superalloy article and method of manufacture thereof

An advanced passive clearance control (APCC) control ring is provided. The APCC control ring includes first and second cover sections, first and second wall sections and a control ring. At least one of the first and second cover sections is bonded to corresponding edges of the first and second wall sections by field assisted sintering technology (FAST) processing along a bond surface to form an enclosure for the control ring.

Advanced passive clearance control (APCC) control ring produced by field assisted sintering technology (FAST)

A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.

Heat treatment and stress relief for solid-state welded nickel alloys

An apparatus for countergravity casting a metallic material, has: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; and a gas source coupled to a headspace of the melting vessel to allow the gas source to pressurize the headspace to establish a pressure differential to force the melted metallic material upwardly through the fill tube into the mold. Extraneous sulfur is prevented from entering the molten metal from the surrounding environment.

Countergravity casting apparatus and desulfurization methods

An apparatus for countergravity casting a metallic has: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; and a gas source coupled to a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into the mold. Added sulfur-gettering particles subsequently filtered or sulfur-gettering material removes sulfur from the melted metallic material.

A method of forming a component by investment casting includes disposing at least a portion of an investment casting pin within a core. The investment casting pin includes a ceramic base pin having a perimeter and a length extending perpendicular to the perimeter and a sacrificial coating disposed about the perimeter of the ceramic base pin along at least a portion of the length of the ceramic base pin. A metal casting is formed around the core. The core and the sacrificial coating are leached with a leaching solution and the investment casting pin is removed from the metal casting.

Investment casting pin and method of using same

A method of making a composite core includes forming first and second cores of refractory metal and ceramic material. Each of the first and second cores is formed with two layers of a material. The layers are bonded together to form a laminate master pattern, and a flexible mold is formed around the pattern. The pattern is removed from the flexible mold, and slurry material, either pulverulent refractory metal material or ceramic material, is poured into the flexible mold. The slurry material is sintered to form each core. The first core is used as an insert while making the second core to create a final composite core.

Method of making complex internal passages in turbine airfoils

A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

Method of manufacturing a hybrid cylindrical structure

A plasma spray system including a turntable subsystem operable to position a multiple of work pieces on a respective multiple of workpiece mounts; a plasma spray subsystem operable to plasma spray the multiple of work pieces on said turntable subsystem; and an overspray wash subsystem operable to wash the multiple of work pieces on said turntable subsystem subsequent to plasma spray of the multiple of work pieces.

Equipment for plasma spray with liquid injection

An article such as a heat shield panel includes a substrate and a multi-layered coating supported on the substrate. The multi-layered coating can include alternating layers of different ceramic material compositions having individual thicknesses of less than 25 micrometers.

Article having multi-layered coating

A ceramic coating process comprises introducing a suspension including a fine ceramic particulate suspended in a liquid carrier into a plasma torch. The method includes melting the fine ceramic particulate in the plasma torch; propelling the fine ceramic particulate toward a substrate; and forming a coating on the substrate, the coating comprises splats of the fine ceramic particulate.

Ceramic coating deposition

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Vernon, CT, United States of America

Mario P Bochiechio