Patents by Inventor Peter Ryall Fitzpatrick

Peter Ryall Fitzpatrick 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: 20030223831
    Abstract: A tool design methodology is provided for high speed machining tools for titanium alloys. The methodology includes providing a predetermined cutting criteria such as cutting speed and cutting depth. The geometry of the tool and work piece is modeled and discretized into desired sections. Cutting parameter such as instantaneous chip load per section and three dimensional forces per section are calculated. The heat parameters are calculated such as the heat generated on the shear and friction surfaces and the heat transfer across the work piece and tool interface. The temperature at the tool and work piece interface is calculated and the coolant parameters are adjusted to reduce the temperature at the interface. Coolant parameters may include the coolant flow angle relative to the interface, coolant impingement pressure at the interface, and the coolant flow rate at the interface.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 4, 2003
    Inventors: Daniel V. Viens, Peter Ryall Fitzpatrick, Tahany El-Wardany, Stephen Varanay