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公开(公告)号：US20180009032A1
公开(公告)日：2018-01-11
申请号：US15205661
申请日：2016-07-08
发明人： Rajendra Madhukar KELKAR , Pong Kwok CHAN , Singh PRABHJOT , Michael John MCCARREN , Arunkumar NATARAJAN , John T. LEMAN
CPC分类号： B22F3/1017 , B22C9/24 , B22F1/0059 , B22F1/0062 , B22F3/1021 , B22F3/15 , B22F3/225 , B22F5/10 , B22F2001/0066 , B22F2005/103 , B22F2201/02 , B22F2301/15 , B22F2302/45 , B22F2998/10 , B22F2999/00 , B29C64/112 , B29L2031/757 , B33Y10/00 , B33Y50/02 , B33Y80/00 , Y02P10/295 , B22F5/007 , B22F3/1055
摘要： Methods of making metal objects are provided. These methods generally involve adding a metal powder slurry into a sacrificial mold, such as a mold made by three dimensional printing, and heating the slurry/mold mixture. The heating steps may include curing the slurry to make a green part inside the mold, debinding to burn off the mold and binder to make a brown part, sintering, and hot isostatic pressing. Metal products, such as aircraft engine parts, are also provided.
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公开(公告)号：US20180161866A1
公开(公告)日：2018-06-14
申请号：US15377796
申请日：2016-12-13
发明人： James Herbert DEINES , Brian David PRZESLAWSKI , Michael John MCCARREN , Xi YANG , Brian Patrick PETERSON
IPC分类号： B22D25/02 , B22C1/22 , B22C9/10 , B22C9/12 , B22C9/02 , B22C9/24 , B22D29/00 , F01D9/04 , F01D5/12
摘要： The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides 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.
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公开(公告)号：US20180161852A1
公开(公告)日：2018-06-14
申请号：US15377673
申请日：2016-12-13
IPC分类号： B22C9/22 , B22D29/00 , B22C9/10 , B22C9/04 , B22C7/02 , B33Y10/00 , B33Y80/00 , B29C67/00 , B28B1/00
摘要： The present disclosure generally relates to integrated core-shell investment casting molds that provide filament structures corresponding to cooling hole patterns on 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.
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公开(公告)号：US20180161854A1
公开(公告)日：2018-06-14
申请号：US15377728
申请日：2016-12-13
发明人： James Herbert DEINES , Brian David PRZESLAWSKI , Michael John MCCARREN , Douglas Gerard KONITZER , Mark Willard MARUSKO , Xi YANG
IPC分类号： B22C9/22 , B22D29/00 , B22C9/10 , B22C9/04 , B22C7/02 , B29C67/00 , B28B1/00 , B33Y10/00 , B33Y80/00
摘要： 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.
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公开(公告)号：US20180161853A1
公开(公告)日：2018-06-14
申请号：US15377711
申请日：2016-12-13
发明人： James Herbert DEINES , Brian David PRZESLAWSKI , Michael John MCCARREN , Gregory Terrence GARAY , Douglas Gerard KONITZER , Mark Willard MARUSKO , Xi YANG , Brian Patrick PETERSON
IPC分类号： B22C9/22 , B22D29/00 , B22C9/10 , B22C9/04 , B22C7/02 , B29C67/00 , B28B1/00 , B33Y10/00 , B33Y80/00
摘要： 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.
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公开(公告)号：US20180161856A1
公开(公告)日：2018-06-14
申请号：US15377759
申请日：2016-12-13
发明人： Xi YANG , James Herbert DEINES , Michael John MCCARREN , Brian David PRZESLAWSKI , Brian Patrick PETERSON , Gregory Terrence GARAY
摘要： The present disclosure generally relates to integrated core-shell investment casting molds that provide an integrated ceramic filter. These integrated core-shell investment casting molds also provide filament structures corresponding to cooling hole patterns on 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.
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7.发明申请公开(公告)号：US20180161855A1
公开(公告)日：2018-06-14
申请号：US15377746
申请日：2016-12-13
发明人： James Herbert DEINES , Brian David PRZESLAWSKI , Michael John MCCARREN , Xi YANG , Brian Patrick PETERSON
IPC分类号： B22C9/22 , B22D29/00 , B22C9/10 , B22C9/04 , B22C7/02 , B29C67/00 , B28B1/00 , B33Y10/00 , B33Y80/00
摘要： The present disclosure generally relates to partial integrated core-shell investment casting molds that can be assembled into complete molds. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine as 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.
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