Work Swings About Progressively Cutting Tool During Tool Stroke Patents (Class 83/351)
  • Patent number: 8176618
    Abstract: A solid electrolyte body is placed on and fixed to an upper plate of a press jig such that a major surface (an upper surface) of the solid electrolyte body faces one major surface of a guide plate having an open space. The upper plate is rotated by a transfer mechanism to incline the solid electrolyte body in one direction, and the inclined solid electrolyte body is moved toward the other major surface of the guide plate such that a first edge of the solid electrolyte body protrudes from the open space. Then, a cutter is slid along the other major surface, so that the first edge is chamfered to form a first chamfered portion.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: May 15, 2012
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshio Suzuki, Kouji Tagawa, Kunihiko Nakagaki