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公开(公告)号：US20200086380A1
公开(公告)日：2020-03-19
申请号：US16131695
申请日：2018-09-14
发明人： John Paulus , Dustin W. Davis , Joel H. Wagner
摘要： A core element of an investment core for use in a casting process used to produce an airfoil includes an investment core body, an extension connected to and protruding from the investment core body, and a connection portion connected to the investment core body and to the extension. The investment core body comprises a ceramic material. A shape of the extension comprises a tube with a centerline axis passing through a center of the extension. A shape of a cross-section of the extension taken along a plane perpendicular to the extension centerline axis comprises an ellipse. The extension is connected to the investment core body by the connection portion.
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公开(公告)号：US10913106B2
公开(公告)日：2021-02-09
申请号：US16131695
申请日：2018-09-14
发明人： John Paulus , Dustin W. Davis , Joel H. Wagner
摘要： A core element of an investment core for use in a casting process used to produce an airfoil includes an investment core body, an extension connected to and protruding from the investment core body, and a connection portion connected to the investment core body and to the extension. The investment core body comprises a ceramic material. A shape of the extension comprises a tube with a centerline axis passing through a center of the extension. A shape of a cross-section of the extension taken along a plane perpendicular to the extension centerline axis comprises an ellipse. The extension is connected to the investment core body by the connection portion.
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公开(公告)号：US20200001368A1
公开(公告)日：2020-01-02
申请号：US16023879
申请日：2018-06-29
发明人： Benjamin Heneveld , Joel H. Wagner , John Paulus
摘要： A method of fabricating a composite component is provided. The method includes manufacturing a cast metallic component including a surface and defining an attachment point along the surface, placing a fugitive mold defining an element feature against the surface such that the element feature aligns with the attachment point, filling the element feature with powdered metallic material and heating the cast metallic component and the powdered metallic material to a temperature above a sintering temperature of the powdered metallic material and below a melting temperature of the cast metallic component.
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