Patents by Inventor Ralf Pieplow

Ralf Pieplow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080092383
    Abstract: The present invention relates to a process for the production of components for combustion engines or turbines, in particular for the production of hollow-valve components, with which for the first time powdery titanium-based alloys, in addition to conventional materials, can be processed into these components. In the process, metal powder and/or metal alloy powder are mixed in a compounder with a binding agent and optionally a flux, the mixture is shaped by injection moulding, the shaped compound is chemically debound, the chemically debound compound is thermally debound at a temperature of less than 450° C. and the chemically and thermally debound compound sintered at a temperature below the melting temperature of the metal and/or metal alloy for the production of the component. The components can be combined with each other in conventional manner by form- and force-locking and also molten joining processes.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 24, 2008
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Eckard Aust, Wolfgang Limberg, Ralf Pieplow, Nils Mildner