Patents Assigned to Osaka Diamond Industrial Company, Ltd.
  • Methods for producing composite rotary dresser
    Patent number: 4456577
    Abstract: A method of producing a rotary dresser include forming a core piece of an iron-base powder and filling in tungsten or like metal powder between the core and an outer mold member containing diamond grit or the like. The construction is then heated to melt and infiltrate a metal alloy, such that a network structure is formed about the powdered metal particles. In a further embodiment, the metal materials may be arranged in concentric form about a metal bushing such that the bushing is included in the final structure.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: June 26, 1984
    Assignee: Osaka Diamond Industrial Company, Ltd.
    Inventors: Takao Kawakita, Kazuo Yamaguchi, Sadao Date