Patents Assigned to Kennematel, Inc.
  • Machining method
    Patent number: 4648761
    Abstract: A method of efficiently removing material from a workpiece of difficult-to-machine materials. The Z axis machining includes the steps of using a center cutting end mill and forming multiple cylindrical holes having tangent diameters and predetermined depths. Said holes, when formed, leave posts that, when viewed in plan, form stars and cusps. Said stars are then removed by reciprocal movement of said end mill along its Z axis and cusps removed by Z axis machining and/or conventional end milling.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: March 10, 1987
    Assignee: Kennematel, Inc.
    Inventors: Robert N. Mitchell, James L. Hunt