公开(公告)号：US20220226901A1

公开(公告)日：2022-07-21

申请号：US17153650

申请日：2021-01-20

Applicant: Product Innovation and Engineering L.L.C.

Inventor： Todd Eugene Sparks

IPC: B22F10/366 ,  B22F12/30 ,  B22F12/44 ,  B22F10/368 ,  B22F10/85 ,  B22F12/50 ,  B33Y50/02 ,  B33Y30/00

Abstract: A laser power control method for additive manufacturing includes a pre-processing component and an intra-processing component. The pre-processing component creates in the system controller a machine code expressed additive-path-with-geometry-metadata that includes a path description. The path description represents the path of the beam source on the build and includes a geometry index for the build. The intra-processing component calculates required power for the beam at intervals and events on the beam path based upon the additive-path-with-geometry-metadata and calculations of the energy balance at the melt pool and the total energy for each point P(s) on the path.

公开(公告)号：US20160151859A1

公开(公告)日：2016-06-02

申请号：US14558306

申请日：2014-12-02

Applicant: Product Innovation and Engineering L.L.C.

Inventor： Todd Eugene Sparks

IPC: B23K26/342 ,  B23K26/06 ,  B23K26/03

CPC classification number: B23K26/34 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2203/03 ,  B22F2203/11 ,  B22F2999/00 ,  B23K26/034 ,  B33Y10/00 ,  Y02P10/295

Abstract: A method for controlling, during metal processing, the input energy from an energy point source that directs focused emitted energy onto a metal workpiece having a geometry, wherein the directed focused emitted energy creates a melt pool and hot zone on the workpiece that emit radiation during the process. The method comprises determining a wavelength range for the emitted radiation that is within a spectral range of radiation emitted by the hot zone during processing that is comparatively high in amount in relation to the amount of radiation emitted by the melt pool in that spectral range during processing; directing the beam onto the workpiece to generate a melt pool and hot zone on the structure; measuring the intensity of radiation within the determined wavelength range; and adjusting the input energy from the energy point source based upon the measured intensity of radiation within the determined wavelength range.

Abstract translation: 一种用于在金属加工期间控制来自能量点源的输入能量的方法，所述能量点源将聚焦的发射能量引导到具有几何形状的金属工件上，其中定向聚焦的发射能量在工件上产生熔融池和热区域， 的过程。 该方法包括确定在处理期间由热区域发射的辐射的光谱范围内的发射辐射的波长范围，其相对于处理期间在该光谱范围中的熔池发射的辐射量相对较高 ; 将梁引导到工件上以在结构上产生熔池和热区; 测量所确定的波长范围内的辐射强度; 以及基于在所确定的波长范围内的测量的辐射强度来调整来自能量点源的输入能量。

公开(公告)号：US09757902B2

公开(公告)日：2017-09-12

申请号：US14643812

申请日：2015-03-10

Applicant: Product Innovation and Engineering L.L.C.

Inventor： Todd Eugene Sparks ,  Kenneth K. Fletcher

IPC: B23K26/34 ,  B29C67/00 ,  G05B19/4099 ,  B33Y50/02

CPC classification number: B29C64/386 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/35134 ,  G05B2219/49007 ,  Y02P90/265

Abstract: A build description is created for a part intended to be built by additive layering. The build description includes a description of the part broken down into constituent substructures and a build sequence for the substructures. A power schedule calculation method utilizes the build description and an idealized geometry to predict laser power levels on an additive path during laser deposition. The method calculates beam power for any point along the path traveled to form the build. Each point along the path has associated with it an idealized geometry comprising a melt pool, hot zone and bulk portion. The method comprises creating the build description, creating a path description representing the path of the beam source through space during the process, calculating the idealized geometry for the point on the path based upon the geometric description and path description, calculating an energy balance at the melt pool for the point on the path, calculating total energy needed at the point on the path and calculating optimum beam source power. In the calculations, build temperature is based upon a calculation of hot zone temperature derived from the idealized geometry.

公开(公告)号：US20160059493A1

公开(公告)日：2016-03-03

申请号：US14643812

申请日：2015-03-10

Applicant: Product Innovation and Engineering L.L.C.

Inventor： Todd Eugene Sparks ,  Kenneth K. Fletcher

IPC: B29C67/00 ,  G05B19/4099

CPC classification number: B29C64/386 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/35134 ,  G05B2219/49007 ,  Y02P90/265

Abstract: A build description is created for a part intended to be built by additive layering. The build description includes a description of the part broken down into constituent substructures and a build sequence for the substructures. A power schedule calculation method utilizes the build description and an idealized geometry to predict laser power levels on an additive path during laser deposition. The method calculates beam power for any point along the path traveled to form the build. Each point along the path has associated with it an idealized geometry comprising a melt pool, hot zone and bulk portion. The method comprises creating the build description, creating a path description representing the path of the beam source through space during the process, calculating the idealized geometry for the point on the path based upon the geometric description and path description, calculating an energy balance at the melt pool for the point on the path, calculating total energy needed at the point on the path and calculating optimum beam source power. In the calculations, build temperature is based upon a calculation of hot zone temperature derived from the idealized geometry.

Abstract translation: 为要通过添加分层构建的部分创建构建描述。 构建描述包括分解成组成子结构的部分的描述和子结构的构建顺序。 功率计划计算方法利用构建描述和理想几何来预测激光沉积期间添加路径上的激光功率水平。 该方法计算沿着行进路径的任何点的波束功率，以形成构建。 沿着路径的每个点与其相关联，是包括熔池，热区和主体部分的理想化几何形状。 该方法包括创建构建描述，在该过程期间创建表示通过空间的光束源的路径的路径描述，基于几何描述和路径描述计算路径上的点的理想化几何，计算在 在路径上的点熔化池，计算路径上所需点的总能量并计算最佳光束源功率。 在计算中，构建温度基于从理想化几何导出的热区温度的计算。

公开(公告)号：US11839915B2

公开(公告)日：2023-12-12

申请号：US17153650

申请日：2021-01-20

Applicant: Product Innovation and Engineering L.L.C.

Inventor： Todd Eugene Sparks

IPC: B22F10/366 ,  B22F12/30 ,  B22F12/44 ,  B33Y30/00 ,  B22F10/85 ,  B22F12/50 ,  B33Y50/02 ,  B22F10/368

CPC classification number: B22F10/366 ,  B22F10/368 ,  B22F10/85 ,  B22F12/30 ,  B22F12/44 ,  B22F12/50 ,  B33Y30/00 ,  B33Y50/02

Abstract: A laser power control method for additive manufacturing includes a pre-processing component and an intra-processing component. The pre-processing component creates in the system controller a machine code expressed additive-path-with-geometry-metadata that includes a path description. The path description represents the path of the beam source on the build and includes a geometry index for the build. The intra-processing component calculates required power for the beam at intervals and events on the beam path based upon the additive-path-with-geometry-metadata and calculations of the energy balance at the melt pool and the total energy for each point P(s) on the path.