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公开(公告)号：US11031161B2
公开(公告)日：2021-06-08
申请号：US15977545
申请日：2018-05-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , Frederick E. Pinkerton , Raja K. Mishra , Tyson W. Brown
IPC: H01F1/03 , B29C64/268 , B33Y80/00 , C01B21/06
Abstract: A three-dimensional object made of a bulk nitride, carbide, or boride-containing material may be manufactured using a powder bed fusion additive manufacturing technique. A layer of powder feed material may be distributed over a solid substrate and scanned with a high-energy laser beam to locally melt selective regions of the layer and form a pool of molten feed material. The pool of molten feed material may be exposed to gaseous nitrogen, carbon, or boron to respectively dissolve nitride, carbide, or boride ions into the pool of molten feed material to produce a molten nitrogen, carbon, or boron-containing solution. The molten nitrogen, carbon, or boron-containing solution may cool and solidify into a solid layer of fused nitride, carbide, or boride-containing material. In one form, the three-dimensional object may comprise a permanent magnet made up of a plurality of solid layers of fused iron nitride material having a magnetic Fe16N2 phase.
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公开(公告)号：US10384252B2
公开(公告)日：2019-08-20
申请号：US15114955
申请日：2015-02-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , John T. Carter , Raja K. Mishra , John E. Carsley
Abstract: Methods suitable for forming complex parts from work-hardened sheet materials of limited formability are described. The formability of the work-hardened sheet is enhanced by forming at elevated temperature. The forming temperature is preferably selected to minimally undo the effects of work hardening so that the formed part is of higher strength than a like part formed from an annealed sheet. The method is applicable to age-hardening and non-age-hardening aluminum and magnesium alloys.
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公开(公告)号：US10427209B2
公开(公告)日：2019-10-01
申请号：US15584506
申请日：2017-05-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Arianna T. Morales , Raja K. Mishra
IPC: B21J3/00 , B29C33/00 , B21D37/18 , B21J13/02 , B21D22/02 , B29C33/60 , B29C51/08 , B29C51/26 , C03B40/02 , B29C51/10 , B29L31/00 , B29C37/00
Abstract: A method of forming a part from a blank includes positioning the blank within a forming die. Water is introduced between the blank and the forming die. The water is heated to form steam between the blank and the forming die. The blank is reshaped within the forming die to form the part while the steam is disposed between the blank and the forming die. The steam forms a cushion between the blank and the forming die to reduce friction therebetween. A lubricant is not applied to the blank prior to being positioned in the forming die. Therefore, the formed part does not require a washing step after being formed.
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公开(公告)号：US20160339497A1
公开(公告)日：2016-11-24
申请号：US15114955
申请日：2015-02-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , John T. Carter , Raja K. Mishra , John E. Carsley
CPC classification number: B21D22/022 , B21D53/88 , C21D1/673 , C22F1/04
Abstract: Methods suitable for forming complex parts from work-hardened sheet materials of limited formability are described. The formability of the work-hardened sheet is enhanced by forming at elevated temperature. The forming temperature is preferably selected to minimally undo the effects of work hardening so that the formed part is of higher strength than a like part formed from an annealed sheet. The method is applicable to age-hardening and non-age-hardening aluminum and magnesium alloys.
Abstract translation: 描述了适用于由成形性有限的加工硬化片材形成复杂部件的方法。 加工硬化片材的成型性通过在升高的温度下成形来提高。 优选选择成形温度以最小程度地消除加工硬化的影响，使得成形部件比由退火板形成的相似部件具有更高的强度。 该方法适用于老化硬化和非老化硬化铝镁合金。
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公开(公告)号：US10189227B2
公开(公告)日：2019-01-29
申请号：US15252878
申请日：2016-08-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , Raja K. Mishra , Jon T. Carter , Tyson W. Brown , Blair E. Carlson , David R. Sigler , Robert N. Saje , Matthew P. Simonin
IPC: B21D26/021 , B32B7/02 , B32B7/04 , B32B15/04 , B32B15/18 , B32B15/20 , B32B27/32 , B21D35/00 , B60R13/02 , B32B37/00
Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.
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Patent Agency Ranking
公开(公告)号：US20180318909A1
公开(公告)日：2018-11-08
申请号：US15584506
申请日：2017-05-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Arianna T. Morales , Raja K. Mishra
IPC: B21J3/00
CPC classification number: B21J3/00 , B21D22/02 , B21D37/18 , B21J13/02 , B29C33/60 , B29C51/082 , B29C51/10 , B29C51/263 , B29C2037/92 , B29L2031/7132 , C03B40/02 , C10N2240/402
Abstract: A method of forming a part from a blank includes positioning the blank within a forming die. Water is introduced between the blank and the forming die. The water is heated to form steam between the blank and the forming die. The blank is reshaped within the forming die to form the part while the steam is disposed between the blank and the forming die. The steam forms a cushion between the blank and the forming die to reduce friction therebetween. A lubricant is not applied to the blank prior to being positioned in the forming die. Therefore, the formed part does not require a washing step after being formed.
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公开(公告)号：US20170106625A1
公开(公告)日：2017-04-20
申请号：US15252878
申请日：2016-08-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , Raja K. Mishra , Jon T. Carter , Tyson W. Brown , Blair E. Carlson , David R. Sigler , Robert N. Saje , Matthew P. Simonin
CPC classification number: B32B7/02 , B21D26/021 , B21D35/006 , B32B7/045 , B32B15/043 , B32B15/18 , B32B15/20 , B32B27/32 , B32B37/0076 , B32B2250/02 , B32B2307/102 , B32B2307/41 , B32B2307/412 , B32B2307/414 , B32B2307/50 , B32B2307/546 , B32B2307/732 , B32B2309/105 , B32B2310/0806 , B32B2605/00 , B60R13/02
Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.
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公开(公告)号：US11132986B2
公开(公告)日：2021-09-28
申请号：US16213135
申请日：2018-12-07
Applicant: GM Global Technology Operations LLC
Inventor： Anil K. Sachdev , Raja K. Mishra , Jon T. Carter , Tyson W. Brown , Blair E. Carlson , David R. Sigler , Robert N. Saje , Matthew P. Simonin
IPC: B32B7/05 , G10K11/168 , B32B7/02 , B32B15/04 , B32B15/18 , B32B15/20 , B32B27/32 , B21D26/021 , B21D35/00 , B32B15/01 , B32B27/08 , B60R7/06 , B60R13/08 , B62D21/00 , B62D25/04 , B62D25/10 , F16M13/02 , B60R13/02 , B32B37/00
Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.
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公开(公告)号：US11708629B2
公开(公告)日：2023-07-25
申请号：US17735228
申请日：2022-05-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Arianna T. Morales , Raja K. Mishra , Anil K. Sachdev
Abstract: An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.
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公开(公告)号：US11359269B2
公开(公告)日：2022-06-14
申请号：US16271239
申请日：2019-02-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Arianna T. Morales , Raja K. Mishra , Anil K. Sachdev
Abstract: An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.
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