HIP manufacture of a hollow component
Patent 7112301 Issued on September 26, 2006. Estimated Expiration Date: 
March 31, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 31, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3753704 Method for producing aperture-containing powder-metallurgy article Method of producing holes in powder metallurgy parts Densification of metal powder to produce cladding of valve interiors by isodynamic compression Powder forging of hollow articles Method for manufacturing high performance components Patent #: 6042780 InventorsAssigneeApplicationNo. 10813395 filed on 03/31/2004US Classes:419/5, Making composite or hollow article419/49, Hot isostatic pressing (HIP)264/635, Utilizing core mandrel419/8, Powder next to solid419/36Addition of fugitive materialExaminersPrimary: Mai, NgoclanAttorney, Agent or FirmInternational ClassesB22F 5/10B22F 3/15 B28B 1/30 B28B 7/34 AbstractForming a hollow structure having an internal coating includes the steps of placing a core shaped to form the internal surface of the structure in a mould, filling the mould with a material powder, hot isostatically pressing the powder about the mould to consolidate the powder, and removing the core from the hollow structure formed, wherein a coating is applied to the core prior to placement in the mould, which coating bonds to the hollow structure formed, during the hot isostatic pressing, to form the internal coating.Field of SearchPowder next to powderPowder next to solid Hot isostatic pressing (HIP) Making composite or hollow article One or more components not compacted Utilizing core mandrel Applying hot isostatic fluid pressure to preform using surrounding liquid (e.g., molten glass, melted tin, etc.) or fluid pressure-transmitting deformable sheath (e.g., metal foil, etc.) | |
