公开(公告)号：US20250065396A1

公开(公告)日：2025-02-27

申请号：US18813484

申请日：2024-08-23

Applicant: RTX Corporation

Inventor： Jordan T. Lowell ,  Anthony J. Del Boccio

IPC: B22C9/06 ,  B22C9/10

Abstract: A casting core assembly comprising: a first ceramic piece including a projecting post; a second ceramic piece including a socket encircling the post; and a ceramic filler material between the post and the socket, wherein at least one of: in axial section at at least one location the post has: a lateral protrusion of at least 15 micrometers relative to a location proximal thereof; and in axial section at at least one location socket has: a lateral recess of at least 15 micrometers relative to a location outboard thereof.

公开(公告)号：US12173415B2

公开(公告)日：2024-12-24

申请号：US17906410

申请日：2021-03-15

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Jean Philippe Krebs ,  Aymeric Bruin

IPC: C23G1/08 ,  B22C9/10 ,  C23G1/02 ,  F01D5/18

Abstract: A method for chemically pickling a cast metal part, including a metal envelope which delimits an inner space in which at least one porous ceramic core is housed, and an outer space, the ceramic core being in fluid communication with the outer space, which method including: filling the pores of the ceramic core with a liquid; and then chemically pickling the cast metal part. This chemical pickling method may be implemented in a method for manufacturing a metal part by investment casting. This method is applicable at least to manufacture of turbine blades for turbomachines and, especially, for aircraft turbojet engines.

公开(公告)号：US12172206B1

公开(公告)日：2024-12-24

申请号：US18369408

申请日：2023-09-18

Applicant: RTX Corporation

Inventor： Lea D. Castle ,  Dawn D. Mandich

IPC: B22C9/10 ,  B22C7/02 ,  B33Y10/00

Abstract: A process for forming a multi-material sacrificial fugitive within a ceramic core including forming a ceramic core defining a core interior; and forming at least one sacrificial fugitive; placing the at least one sacrificial fugitive within the core interior, the at least one sacrificial fugitive comprising a multi-material composition comprising a soluble wax portion and a thermoset/photopolymer portion.

公开(公告)号：US12168254B2

公开(公告)日：2024-12-17

申请号：US17509368

申请日：2021-10-25

Applicant: General Electric Company

Inventor： Xi Yang ,  Michael Cole ,  Michael Brown ,  Gregory Terrence Garay ,  Tingfan Pang ,  Brian David Przeslawski ,  Douglas Gerard Konitzer

IPC: B22C9/10 ,  B22C9/04 ,  B22D29/00 ,  B28B1/00 ,  B28B7/34 ,  B32B18/00 ,  B33Y10/00 ,  B33Y80/00 ,  C04B35/14

Abstract: A method of forming a cast component and a method of forming a casting mold. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.

公开(公告)号：US20240399446A1

公开(公告)日：2024-12-05

申请号：US18800218

申请日：2024-08-12

Applicant: AURUBIS AG

Inventor： Marcus ESCHEN ,  Ulf MEYER ,  Markus WENZEL ,  Cora KLEEBERG

IPC: B22C9/06 ,  B22C9/10 ,  B22C9/22 ,  C25C1/12 ,  C25C7/02

Abstract: A casting mould produces copper anodes for producing high-purity copper. The casting mould has: a first flat cavity, which is delimited by two lateral surfaces aligned in parallel with each other; two second cavities, which are fluidically connected to the first flat cavity, are arranged on different corners on a peripheral side of the first flat cavity, and extend laterally outwardly away from the first flat cavity; and a core. The core is provided centrally in a respective second cavity of the second cavities. The core sub-divides the respective second cavity at least partially into a closed annular shape in the peripheral direction.

公开(公告)号：US12064807B2

公开(公告)日：2024-08-20

申请号：US16962301

申请日：2019-01-07

Applicant: Reinsicht GmbH

Inventor： Ivo Herzog

IPC: B22C1/20 ,  B22C1/18 ,  B22C9/10 ,  B29C33/38 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C04B20/10 ,  C04B28/00 ,  C04B28/18 ,  B29K83/00 ,  C04B111/00

CPC classification number: B22C1/205 ,  B22C1/18 ,  B22C9/105 ,  B29C33/3842 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C04B20/1051 ,  C04B28/008 ,  C04B28/182 ,  B29K2083/00 ,  C04B2111/00181

Abstract: A method of manufacturing molds and cores suitable for producing fiber composite bodies or cast parts of metal or plastic from a mold base material and a multicomponent binder by 3D printing includes pretreating the particulate mold base material with at least one silicon-organic compound having a polar hydrophilic end and a nonpolar hydrophobic end, forming a layer of the pretreated particulate mold base material, and applying the binder or at least one component of the binder in liquid form to the layer, wherein b. and c. are repeated.

公开(公告)号：US11986879B2

公开(公告)日：2024-05-21

申请号：US17719737

申请日：2022-04-13

Applicant: GM Global Technology Operations LLC

Inventor： Liang Wang ,  Qigui Wang ,  Dale A. Gerard ,  Steven L. Burkholder ,  Ronald C. Daul

IPC: B22C3/00 ,  B22C9/02 ,  B22C9/06 ,  B22C9/10 ,  B22D15/02

CPC classification number: B22D15/02 ,  B22C3/00 ,  B22C9/02 ,  B22C9/061 ,  B22C9/101

Abstract: A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.

公开(公告)号：US20240157433A1

公开(公告)日：2024-05-16

申请号：US18550230

申请日：2022-03-08

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Didier Maurice Marceau Guerche ,  Joseph Toussaint Tami Lizuzu

IPC: B22C7/02 ,  B22C9/04 ,  B22C9/10 ,  B22C9/22 ,  B22C21/14 ,  B22D25/02

CPC classification number: B22C7/02 ,  B22C9/04 ,  B22C9/103 ,  B22C9/22 ,  B22C21/14 ,  B22D25/02

Abstract: A method for making a wax model for the manufacture of a part, the part including at least one cavity, the method including: arranging at least two core elements made of a ceramic material into a wax mold, the core elements having at least partially a shape complementary to the cavity of the part to be manufactured, and injecting wax into the wax mold, around the core elements, so as to form the wax model, the two core elements being assembled prior to the injection of wax by at least one staple, the staple including a central portion from which two branches extend, each branch being fitted into an orifice formed in one of the core elements.

公开(公告)号：US11982231B2

公开(公告)日：2024-05-14

申请号：US18179479

申请日：2023-03-07

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Brandon W. Spangler

IPC: B22C9/10 ,  B22C9/00 ,  B22C9/22 ,  B22C9/24 ,  B22C13/12 ,  F01D5/18 ,  F01D25/12 ,  F02C7/18

CPC classification number: F02C7/18 ,  B22C9/00 ,  B22C9/10 ,  B22C9/103 ,  B22C9/106 ,  B22C9/22 ,  B22C9/24 ,  B22C13/12 ,  F01D5/187 ,  F01D25/12 ,  F05D2220/32 ,  F05D2260/204

Abstract: A core structure for a providing a cooling passage in a gas turbine engine includes a core body that has a first cooling passage core. The first cooling passage core has a first width in a chord-wise direction near a first wall. A second width in the chord-wise direction near a second wall. A third width in the chord-wise direction between the first and second walls. The third width being smaller than the first and second widths to form an hourglass shape.

公开(公告)号：US20240139800A1

公开(公告)日：2024-05-02

申请号：US18241647

申请日：2023-09-01

Applicant: Matthews International Corporation

Inventor： Yurij F. WOWCZUK ,  Jake A. VARGO ,  Bernard A. KUHN, JR. ,  Gregory Allen GEERS

IPC: B22C9/10 ,  B22C9/22 ,  B33Y10/00 ,  B33Y80/00

CPC classification number: B22C9/10 ,  B22C9/22 ,  B33Y10/00 ,  B33Y80/00

Abstract: A hybrid method of casting a metal product is disclosed. The method includes obtaining a product design, creating a mold insert based on the product design, creating a mold base based on the product design, assembling the mold insert with the mold base to form an assembled mold, casting the metal product with the assembled mold, and post-processing the metal product. In some embodiments, creating a mold insert includes generating printing instructions for a mold insert based on the product design and printing a mold insert configured to mate with a product mold (for example, a mold produced by traditional sand molding processes) based on the printing instructions.