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公开(公告)号：US20250122401A1
公开(公告)日：2025-04-17
申请号：US19002048
申请日：2024-12-26
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , William C. Alberts
IPC: C09D139/06 , B29C64/165 , B33Y10/00 , B33Y70/00 , C09D7/20 , C09D7/45
Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.
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公开(公告)号：US20240408876A1
公开(公告)日：2024-12-12
申请号：US18813323
申请日：2024-08-23
Applicant: General Electric Company
Inventor： William C. Alberts , Vadim Bromberg , Kwok Pong Chan , Robert Edgar Estes , Jacob Mayer , Joshua Tyler Mook , Janet Mekker , William Cosmo Murphy , Arunkumar Natarajan , Mary Kathryn Thompson , Xi Yang , Travis Sands
Abstract: Embodiments of the present disclosure are directed to additive manufacturing apparatuses, cleaning stations incorporated therein, and methods of cleaning using the cleaning stations.
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13.发明申请公开(公告)号：US20240367231A1
公开(公告)日：2024-11-07
申请号：US18775499
申请日：2024-07-17
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Carlos H. Bonilla
Abstract: A dip-coat binder solution comprises a dip-coat metallic precursor and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 150 cP. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder and a print binder, dipping the green body part in a dip-coat binder solution, and heating the dip-coated green body part. The dip-coated green body part is heated to form a coated green body part having a metallic precursor coating on an outer surface of the coated green body part. The coated green body part has a strength greater than or equal to 10 MPa.
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公开(公告)号：US20230073194A1
公开(公告)日：2023-03-09
申请号：US17889852
申请日：2022-08-17
Applicant: General Electric Company
Inventor： Mary Kathryn Thompson , Arunkumar Natarajan , Kwok Pong Chan , Vadim Bromberg , Xi Yang , Ananda Barua , William C. Alberts
IPC: B29C64/165 , B29C64/209 , B29C64/336 , B33Y10/00
Abstract: Various embodiments provide a method of additively manufacturing a part including depositing a layer of a powder on a working surface, depositing a binder solution on the layer of the powder at first locations, and depositing a sintering aid solution on the layer of the powder at second locations. The sintering aid solution comprises a sintering aid in a solvent. In various embodiments, the sintering aid enables an increased brown strength as compared to parts containing unbound powder. The method enables binders that provide high green strength to be used at the edges of the part, while also balancing a shortened debind time with an increased brown strength. Embodiments in which binder solution is deposited according to a predetermined pattern at second locations are also described.
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15.发明申请公开(公告)号：US20220143699A1
公开(公告)日：2022-05-12
申请号：US17500390
申请日：2021-10-13
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Carlos H. Bonilla
Abstract: A dip-coat binder solution comprises a dip-coat metallic precursor and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 150 cP. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder and a print binder, dipping the green body part in a dip-coat binder solution, and heating the dip-coated green body part. The dip-coated green body part is heated to form a coated green body part having a metallic precursor coating on an outer surface of the coated green body part. The coated green body part has a strength greater than or equal to 10 MPa.
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Patent Agency Ranking
公开(公告)号：US20190217385A1
公开(公告)日：2019-07-18
申请号：US15870235
申请日：2018-01-12
Applicant: General Electric Company
Inventor： Carlos Humberto Bonilla Gonzalez , Vadim Bromberg , Christopher A. Panczyk , Arunkumar Natarajan , Waseem Faidi , William T. Carter
CPC classification number: B22F3/1055 , B22F3/008 , B22F3/1007 , B22F2003/1056 , B23K26/34 , B23K26/354 , B29C64/153 , B29C64/165 , B29C64/205 , B33Y10/00 , B33Y30/00
Abstract: The subject matter disclosed herein relates to additive manufacturing techniques, and more specifically, to additive manufacturing techniques that involve binder jet printing. A disclosed additive manufacturing system for fabricating an article includes a build unit and a positioning system operably coupled to the build unit. The positioning system is configured to move the build unit in at least three dimensions. The build unit includes a recoater portion configured to deposit a layer of powder within a build area of the additive manufacturing system. The build unit also includes a binder jetting portion configured to selectively deposit and cure a binder within a periphery of the deposited layer of powder to form a dynamic build envelope around the article being fabricated in the build area.
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公开(公告)号：US10343214B2
公开(公告)日：2019-07-09
申请号：US15436344
申请日：2017-02-17
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Carlos Bonilla Gonzalez , Vadim Bromberg , Jeffrey Jon Schoonover , Srikanth Chandrudu Kottilingam , Prabhjot Singh , Kwok Pong Chan
IPC: B22F3/105 , B22F3/10 , B28B1/00 , B33Y10/00 , B22F3/00 , B28B11/24 , B29C64/153 , B29C64/40 , B33Y40/00 , B29L31/00 , B29K505/08 , B29K509/02
Abstract: A method of binder jet printing a part includes depositing a layer of a powder on a working surface and selectively printing a binder solution comprising a binder into the layer of powder in a first pattern to generate a printed layer. The pattern is representative of a structure of a layer of the part. The method also includes selectively printing a channel support agent solution comprising a channel support agent into the layer of powder to generate a green body. The channel support agent is selectively printed in a second pattern representative of an internal channel of the part. The method further includes heating the green body part above a first temperature to remove the binder and generate a brown body part and heating the brown body part above a second temperature to sinter the powder to generate the part having the internal channel generated from removal of the channel support agent.
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公开(公告)号：US20150099650A1
公开(公告)日：2015-04-09
申请号：US14047233
申请日：2013-10-07
Applicant: General Electric Company
Inventor： Anup Sood , Arunkumar Natarajan , Michael James Rishel , Michael John Gerdes
IPC: C12Q1/68
CPC classification number: C12Q1/6825 , C12Q2523/319 , G01N33/53 , G01N33/533 , G01N33/542 , G01N33/6854
Abstract: Disclosed are high throughput methods of probing multiple targets in a biological sample where the recurrent time-consuming antibody incubation steps and individual signal modification and activation steps are replaced by simultaneous hybridization of biomarkers and sequential detection by combining signal removal and activation into a single step. Also disclosed are images obtained by such methods.
Abstract translation: 公开了探测生物样品中多个靶标的高通量方法，其中复发耗时的抗体孵育步骤和单独的信号修饰和激活步骤被生物标志物的同时杂交和通过将信号去除和活化组合到单个步骤中的顺序检测来代替。 还公开了通过这种方法获得的图像。
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19.发明授权公开(公告)号：US12064810B2
公开(公告)日：2024-08-20
申请号：US17500390
申请日：2021-10-13
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , Carlos H. Bonilla
Abstract: A dip-coat binder solution comprises a dip-coat metallic precursor and a dip-coat binder. The dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 150 cP. A method of forming a part includes providing a green body part comprising a plurality of layers of print powder and a print binder, dipping the green body part in a dip-coat binder solution, and heating the dip-coated green body part. The dip-coated green body part is heated to form a coated green body part having a metallic precursor coating on an outer surface of the coated green body part. The coated green body part has a strength greater than or equal to 10 MPa.
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公开(公告)号：US20240034902A1
公开(公告)日：2024-02-01
申请号：US17876028
申请日：2022-07-28
Applicant: General Electric Company
Inventor： Arunkumar Natarajan , William C. Alberts
IPC: C09D139/06 , C09D7/20 , C09D7/45 , B33Y10/00 , B33Y70/00 , B29C64/165
CPC classification number: C09D139/06 , C09D7/20 , C09D7/45 , B33Y10/00 , B33Y70/00 , B29C64/165 , B29K2039/06
Abstract: A water-based binder solution comprises a thermoplastic binder, greater than or equal to 4 wt % to less than or equal to 20 wt % of a non-aqueous solvent having a boiling point greater than or equal to 100° C. and less than or equal to 175° C., and water. The thermoplastic binder comprises a first polymer strand having a weight average molecular weight (Mw) of from 5,000 g/mol to 15,000 g/mol; and at least one of a second polymer strand having a weight average molecular weight (Mw) of from 10,000 g/mol to 50,000 g/mol and a third polymer strand having a weight average molecular weight (Mw) of from 1,000 g/mol to 5,000 g/mol. A method of monitoring a print head of an additive manufacture process comprises depositing a water-based binder solution on the thermal paper.
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