公开(公告)号：US20190143392A1

公开(公告)日：2019-05-16

申请号：US16245787

申请日：2019-01-11

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel ,  John J. Marcin, JR. ,  Steven J. Bullied ,  Carl R. Verner

IPC: B21D51/02 ,  C30B29/52 ,  C30B11/00 ,  B22D21/00 ,  B23K28/00

Abstract: A method comprises: providing a spiral metallic workpiece having a cast structure associated with such spiral; and at least partially flattening the workpiece.

公开(公告)号：US10265763B2

公开(公告)日：2019-04-23

申请号：US16152544

申请日：2018-10-05

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Paul D. Genereux ,  Alan D. Cetel ,  John J. Marcin, Jr. ,  Steven J. Bullied ,  Mario P. Bochiechio ,  Kevin W. Schlichting ,  Bradford A. Cowles ,  Carl R. Verner ,  David U. Furrer ,  Venkatarama K. Seetharaman

IPC: B22D27/04 ,  C30B29/60 ,  C30B29/52 ,  C30B15/36 ,  C30B13/34 ,  F23R3/00 ,  F01D25/00 ,  F01D5/28 ,  F01D5/02 ,  C30B11/14 ,  B22D27/13 ,  B22D7/04 ,  B22D19/00 ,  B22D21/02 ,  B22D25/02 ,  C22C19/03 ,  F01D11/08 ,  F01D25/24 ,  F01D5/34 ,  F01D5/14

Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

公开(公告)号：US20190039128A1

公开(公告)日：2019-02-07

申请号：US16152544

申请日：2018-10-05

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Paul D. Genereux ,  Alan D. Cetel ,  John J. Marcin, JR. ,  Steven J. Bullied ,  Mario P. Bochiechio ,  Kevin W. Schlichting ,  Bradford A. Cowles ,  Carl R. Verner ,  David U. Furrer ,  Venkatarama K. Seetharaman

IPC: B22D27/04 ,  F23R3/00 ,  B22D19/00 ,  B22D21/02 ,  B22D25/02 ,  B22D27/13 ,  C22C19/03 ,  C30B11/14 ,  C30B13/34 ,  C30B15/36 ,  C30B29/52 ,  C30B29/60 ,  F01D5/02 ,  B22D7/04 ,  F01D25/24 ,  F01D25/00 ,  F01D11/08 ,  F01D5/28 ,  F01D5/34 ,  F01D5/14

Abstract: A method for casting comprising: providing a seed, the seed characterized by: an arcuate form and a crystalline orientation progressively varying along an arc of the form; providing molten material; and cooling and solidifying the molten material so that a crystalline structure of the seed propagates into the solidifying material.

公开(公告)号：US10035185B2

公开(公告)日：2018-07-31

申请号：US14651911

申请日：2013-12-13

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel

IPC: B22D25/02 ,  B22D19/16 ,  B22D21/02 ,  B22D27/04 ,  C22C19/05 ,  F01D5/14 ,  F01D5/28 ,  B22D21/06

CPC classification number: B22D25/02 ,  B22D19/16 ,  B22D21/025 ,  B22D21/06 ,  B22D27/045 ,  C22C19/057 ,  F01D5/14 ,  F01D5/147 ,  F01D5/28 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2300/131 ,  F05D2300/132 ,  F05D2300/133 ,  F05D2300/135 ,  F05D2300/17 ,  F05D2300/606 ,  F05D2300/609 ,  Y10T403/478

Abstract: A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation.

公开(公告)号：US10012099B2

公开(公告)日：2018-07-03

申请号：US15004591

申请日：2016-01-22

Applicant: United Technologies Corporation

Inventor： Alan D. Cetel ,  Dilip M. Shah ,  Eric A. Hudson ,  Raymond Surace

IPC: F01D11/00 ,  F01D25/00

CPC classification number: F01D11/005 ,  C22C19/00 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/26 ,  F05D2230/90

Abstract: Aspects of the disclosure are directed to a seal configured to interface with at least a first component and a second component of a gas turbine engine. A method for forming the seal includes obtaining an ingot of a fine grained, or a coarse grained, or a columnar grained or a single crystal material from a precipitation hardened nickel base superalloy containing at least 40% by volume of the precipitate of the form Ni3(Al, X), where X is a metallic or refractory element, and processing the ingot to generate a sheet of the material, where the sheet has a thickness within a range of 0.010 inches and 0.050 inches inclusive.

公开(公告)号：US10005125B2

公开(公告)日：2018-06-26

申请号：US14106007

申请日：2013-12-13

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Dilip M. Shah ,  Alan D. Cetel

IPC: B22D19/16 ,  B22D27/04 ,  B22D25/02 ,  C22C19/05 ,  F01D5/14 ,  F01D5/28 ,  B22D21/06 ,  B22D21/02

CPC classification number: B22D25/02 ,  B22D19/16 ,  B22D21/025 ,  B22D21/06 ,  B22D27/045 ,  C22C19/057 ,  F01D5/14 ,  F01D5/147 ,  F01D5/28 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2300/131 ,  F05D2300/132 ,  F05D2300/133 ,  F05D2300/135 ,  F05D2300/17 ,  F05D2300/606 ,  F05D2300/609 ,  Y10T403/478

Abstract: A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method includes introducing a molten alloy into a mold. A composition of the introduced alloy is varied during the introduction so as to produce a compositional variation.

公开(公告)号：US20170211401A1

公开(公告)日：2017-07-27

申请号：US15004591

申请日：2016-01-22

Applicant: United Technologies Corporation

Inventor： Alan D. Cetel ,  Dilip M. Shah ,  Eric A. Hudson ,  Raymond Surace

IPC: F01D11/00 ,  F01D25/00

CPC classification number: F01D11/005 ,  C22C19/00 ,  F01D25/005 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2230/21 ,  F05D2230/26 ,  F05D2230/90

Abstract: Aspects of the disclosure are directed to a seal configured to interface with at least a first component and a second component of a gas turbine engine. A method for forming the seal includes obtaining an ingot of a fine grained, or a coarse grained, or a columnar grained or a single crystal material from a precipitation hardened nickel base superalloy containing at least 40% by volume of the precipitate of the form Ni3(Al, X), where X is a metallic or refractory element, and processing the ingot to generate a sheet of the material, where the sheet has a thickness within a range of 0.010 inches and 0.050 inches inclusive.

公开(公告)号：US11459899B2

公开(公告)日：2022-10-04

申请号：US15934332

申请日：2018-03-23

Applicant: United Technologies Corporation

Inventor： Dilip M. Shah ,  Alan D. Cetel ,  Venkatarama K. Seetharaman ,  Raymond Surace

IPC: F01D5/18

Abstract: A hollow turbine airfoil or a hollow turbine casting including a cooling passage partition. The cooling passage partition is formed from a single crystal grain structure nickel based super alloy, a cobalt based super alloy, a nickel-aluminum based alloy, or a coated refractory metal.

公开(公告)号：US10456830B2

公开(公告)日：2019-10-29

申请号：US15605087

申请日：2017-05-25

Applicant: United Technologies Corporation

Inventor： Steven J. Bullied ,  Dilip M. Shah ,  Alan D. Cetel ,  John J. Marcin

IPC: B22D19/16 ,  B22D27/04 ,  F01D5/14

Abstract: An alloy part is cast in a mold (280) having a part-forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part-forming cavity to raise relative to the part-forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part-forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.

公开(公告)号：US20190309438A1

公开(公告)日：2019-10-10

申请号：US15946090

申请日：2018-04-05

Applicant: United Technologies Corporation

Inventor： Steven J. Bullied ,  Ryan C. Breneman ,  Dilip M. Shah ,  Shiela R. Woodard

IPC: C30B11/14 ,  B22C9/24 ,  B22C9/10 ,  C30B11/00 ,  C30B29/52 ,  C30B29/66

Abstract: A process for casting a single crystal axis-symmetric thick walled tube comprising forming a axisymmetric single crystal ring seed around a circular internal core, wherein the ring seed has an inner diameter and a taper on the inner diameter, and wherein the internal core has an outer diameter and a matching taper on the outer diameter, the matching taper matching the taper of the inner diameter of the ring seed, and the internal core being free to translate in a vertical direction relative to the ring seed; and heating the ring seed so as to expand the ring seed relative to the internal core, and allowing the circular internal core to translate relative to the ring seed in a direction of the force of gravity, thereby maintaining contact between the circular internal core and the ring seed.