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公开(公告)号：US20210308759A1
公开(公告)日：2021-10-07
申请号：US16842106
申请日：2020-04-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mark A. Smith , Tyson W. Brown , HyungMin Chae , Md Ashabul Anam , Whitney A. Poling , Richard J. Skurkis
Abstract: A system and method for additive manufacturing are provided. The system includes a structure defining a chamber for manufacturing parts via additive manufacturing. A powder metal applicator is configured to deposit layers of powder metal material to build a part on a build platform. A laser source is configured to direct one or more laser beams onto each layer of powder metal material to fuse the powder metal material, wherein metal condensate is created by the laser beam(s) contacting the powder metal material. An element spaced apart from the layers of powder material has a temperature different than the chamber temperature, so that the element is configured to attract or repel the metal condensate by virtue of the temperature differential between the element and the chamber. The method includes using the element having the different temperature to attract or repel the metal condensate within the chamber.
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公开(公告)号：US11666998B2
公开(公告)日：2023-06-06
申请号：US17103721
申请日：2020-11-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： HyungMin Chae , Tyson W. Brown , Richard J. Skurkis , Md Ashabul Anam , Wonhee M. Kim
CPC classification number: B23Q3/088 , B23Q1/38 , B25B5/065 , B23Q2703/04 , B25B5/14
Abstract: Systems and methods are provided for gripping of a workpiece with a layer jamming structure having rigid datum structures. A system includes a layer jamming structure configurable in an inactivated conformable state, with a membrane defining an internal cavity containing a number of overlapping material layers. The rigid structures engage the layer jamming structure. A pressure system includes a pump coupled with the internal cavity to change a pressure therein to transform the layer jamming structure from the inactivated conformable state to an activated rigid state disposed around the workpiece. The rigid structures help conform the layer jamming structure to the workpiece during transformation to the activated rigid state and to present datum fixturing surfaces in the activated rigid state.
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公开(公告)号：US11590575B2
公开(公告)日：2023-02-28
申请号：US16842106
申请日：2020-04-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mark A. Smith , Tyson W. Brown , HyungMin Chae , Md Ashabul Anam , Whitney A. Poling , Richard J. Skurkis
Abstract: A system and method for additive manufacturing are provided. The system includes a structure defining a chamber for manufacturing parts via additive manufacturing. A powder metal applicator is configured to deposit layers of powder metal material to build a part on a build platform. A laser source is configured to direct one or more laser beams onto each layer of powder metal material to fuse the powder metal material, wherein metal condensate is created by the laser beam(s) contacting the powder metal material. An element spaced apart from the layers of powder material has a temperature different than the chamber temperature, so that the element is configured to attract or repel the metal condensate by virtue of the temperature differential between the element and the chamber. The method includes using the element having the different temperature to attract or repel the metal condensate within the chamber.
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Patent Agency Ranking
公开(公告)号：US20220161378A1
公开(公告)日：2022-05-26
申请号：US17103721
申请日：2020-11-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： HyungMin Chae , Tyson W. Brown , Richard J. Skurkis , Md Ashabul Anam , Wonhee M. Kim
Abstract: Systems and methods are provided for gripping of a workpiece with a layer jamming structure having rigid datum structures. A system includes a layer jamming structure configurable in an inactivated conformable state, with a membrane defining an internal cavity containing a number of overlapping material layers. The rigid structures engage the layer jamming structure. A pressure system includes a pump coupled with the internal cavity to change a pressure therein to transform the layer jamming structure from the inactivated conformable state to an activated rigid state disposed around the workpiece. The rigid structures help conform the layer jamming structure to the workpiece during transformation to the activated rigid state and to present datum fixturing surfaces in the activated rigid state.
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公开(公告)号：US11534972B2
公开(公告)日：2022-12-27
申请号：US17007698
申请日：2020-08-31
Applicant: GM Global Technology Operations LLC
Inventor： Richard J. Skurkis , Whitney A. Poling , Mark A. Smith , Tyson W. Brown , Md Ashabul Anam , HyungMin Chae , Blair E. Carlson
Abstract: A post-build powder removal system includes a work bed, a platform wall having at least one powder evacuation port, and an evacuation port sealing system operable for selectively closing and opening the powder evacuation port. The platform wall cooperates with the work bed to define a powder chamber. The evacuation port sealing system includes an external sleeve slidingly fitted onto the exterior surface of the platform wall such that the external sleeve is slideable in a first direction closing the at least one powder evacuation port and slideable in an opposite second direction opening the at least one powder evacuation port.
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公开(公告)号：US20210241006A1
公开(公告)日：2021-08-05
申请号：US16777202
申请日：2020-01-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Md Ashabul Anam , Venkatesh Gopalakrishnan , Taleah J. Slack
Abstract: A method to reduce a vehicle-hazard potential, the method including the steps of: detecting, via a sensor, one or more objects in a vehicle environment; determining whether these objects are of a specific type; and based on the specific type of the one or more objects, deterring the one or more objects from colliding with a vehicle.
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公开(公告)号：US11772162B2
公开(公告)日：2023-10-03
申请号：US17083758
申请日：2020-10-29
Applicant: GM Global Technology Operations LLC
Inventor： Md Ashabul Anam , Mark A Smith , Tyson W Brown , Richard J Skurkis , HyungMin Chae , Whitney A Poling
CPC classification number: B22F10/00 , B22F3/1007 , B29C64/35 , B22F2201/20 , B33Y10/00 , B33Y30/00
Abstract: A powder bed fusion system includes a powder bed including a build surface and a vacuum system. The vacuum system includes a collection device positioned over the build surface. The collection device includes a body, a pathway defined in the body, wherein the pathway ends in a passageway opening, and a particle retainer connected to the body near the passageway opening. A method of forming a component includes forming a layer of unfused metal powder on a powder bed with a recoater, introducing gas to the powder bed and applying a vacuum with a collection device, fusing a portion of the layer of unfused metal powder on the powder bed with a heat source to form a component layer and generating contaminants, collecting the contaminants from the powder bed with the gas and the vacuum applied by the collection device.
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公开(公告)号：US20220134425A1
公开(公告)日：2022-05-05
申请号：US17083758
申请日：2020-10-29
Applicant: GM Global Technology Operations LLC
Inventor： Md Ashabul Anam , Mark A. Smith , Tyson W. Brown , Richard J. Skurkis , HyungMin Chae , Whitney A. Poling
Abstract: A powder bed fusion system includes a powder bed including a build surface and a vacuum system. The vacuum system includes a collection device positioned over the build surface. The collection device includes a body, a pathway defined in the body, wherein the pathway ends in a passageway opening, and a particle retainer connected to the body near the passageway opening. A method of forming a component includes forming a layer of unfused metal powder on a powder bed with a recoater, introducing gas to the powder bed and applying a vacuum with a collection device, fusing a portion of the layer of unfused metal powder on the powder bed with a heat source to form a component layer and generating contaminants, collecting the contaminants from the powder bed with the gas and the vacuum applied by the collection device.
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