公开(公告)号：US20200030872A1

公开(公告)日：2020-01-30

申请号：US16531842

申请日：2019-08-05

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 ,  B28B11/04 ,  B28B1/00 ,  B22C9/04 ,  B22D29/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.

公开(公告)号：US20190240726A1

公开(公告)日：2019-08-08

申请号：US15887601

申请日：2018-02-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gregory Terrence GARAY ,  Meredith DUBELMAN ,  Xi YANG ,  Tingfan PANG ,  Michael Scott COLE ,  Brian David PRZESLAWSKI ,  Douglas Gerard KONITZER ,  Nicole BARBA ,  Kirk GALLIER ,  Brian KEITH

IPC: B22C9/22 ,  B22D29/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y80/00 ,  F01D5/18 ,  F01D9/02

CPC classification number: B22C9/22 ,  B22D29/002 ,  B28B1/001 ,  B33Y10/00 ,  B33Y80/00 ,  C30B29/02 ,  F01D5/18 ,  F01D9/02 ,  F05D2220/32 ,  F05D2300/10

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide tongue or groove structures corresponding, respectively, to groove or tongue structures in the surface of the turbine blade or stator vane, including in locations that are otherwise inaccessible. The groove and tongue structures also provide a pathway to restrict cooling flow between turbine blades to the flowpath.

公开(公告)号：US20190001404A1

公开(公告)日：2019-01-03

申请号：US15636389

申请日：2017-06-28

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 ,  B28B1/00 ,  B22C9/04 ,  B22D29/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: The present disclosure relates to 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：US20180161854A1

公开(公告)日：2018-06-14

申请号：US15377728

申请日：2016-12-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： James Herbert DEINES ,  Brian David PRZESLAWSKI ,  Michael John MCCARREN ,  Douglas Gerard KONITZER ,  Mark Willard MARUSKO ,  Xi YANG

IPC: B22C9/22 ,  B22D29/00 ,  B22C9/10 ,  B22C9/04 ,  B22C7/02 ,  B29C67/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade or stator vane, which provide a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

公开(公告)号：US20180161853A1

公开(公告)日：2018-06-14

申请号：US15377711

申请日：2016-12-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： James Herbert DEINES ,  Brian David PRZESLAWSKI ,  Michael John MCCARREN ,  Gregory Terrence GARAY ,  Douglas Gerard KONITZER ,  Mark Willard MARUSKO ,  Xi YANG ,  Brian Patrick PETERSON

IPC: B22C9/22 ,  B22D29/00 ,  B22C9/10 ,  B22C9/04 ,  B22C7/02 ,  B29C67/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y80/00

Abstract: The present disclosure generally relates to integrated core-shell investment casting molds including a main core portion, a core tip portion, and a shell portion with at least one cavity between the core portion and the shell portion. The cavity defines the shape of a cast component upon casting and removal of the ceramic mold. These molds also provide filament structures corresponding to cooling hole patterns in the surface of the turbine blade or the stator vane, which provide a leaching pathway for the core portion after metal casting. At least two ceramic tip filaments connect the core tip portion and the shell portion and eliminate the need for tip pins or a shell lock to hold the tip plenum core in place during casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.