Patents by Inventor Xiangdong D. Fang

Xiangdong D. Fang 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: 20190247926
    Abstract: A cutting insert with internal coolant passageways is disclosed. The cutting insert includes at least one internal coolant inlet passageway having a first cross-sectional area, and at least one internal coolant exit passageway having a second cross-sectional area. The at least one internal coolant exit passageway is in fluid communication with the at least one internal coolant inlet passageway. The coolant enters the at least one internal coolant inlet passageway at a first surface of the cutting insert and exits the at least one coolant exit passageway at a second, different surface of the cutting insert. The second cross-sectional area of the at least one internal coolant exit passageway are less than the first cross-sectional area of the at least one internal coolant inlet passageway, thereby producing an increased streaming effect of the coolant to an insert-chip interface.
    Type: Application
    Filed: February 14, 2018
    Publication date: August 15, 2019
    Applicant: Kennametal Inc.
    Inventors: Xiangdong D. Fang, Ruy Frota de Souza Filho, David J. Wills
  • Patent number: 5689062
    Abstract: A method is provided for assessing tool-wear and predicting tool-life for a selected cutting tool performing a machining operation. The method is broadly defined as including the steps of determining a tool coating effect factor and a chip-groove effect factor for the coated, grooved cutting tool. Additionally, the method includes the calculation of a tool-life for the coated, grooved cutting tool. The method takes into account selected machining operation conditions such as the characteristics of the workpiece material to be cut, the depth of cut, the feed rate, the cutting speed and the cutting tool geometry.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: November 18, 1997
    Assignee: University of Kentucky Research Foundation
    Inventors: Ibrahim S. Jawahir, Xiangdong D. Fang, Peng X. Li, Ranajit Ghosh