Patent ID: 6343902
Filing Date: 2002-02-05
Classification: B23C,B23D,Y10T

Abstract:
A method of using a reamer for enlarging an initial diameter of a prepared hole extending along a longitudinal hole axis formed into a workpiece, the reamer including a shank, a plurality of heads and a plurality of chips, the shank extending along a longitudinal reamer axis and having a clamp portion and a head supporting portion disposed opposite the clamp portion, the plurality of heads supported and positioned in sequence relative to one another on the head supporting portion of the shank along the longitudinal reamer axis and extending radially relative to the longitudinal reamer axis to form an outer periphery with each head having a plurality of recesses formed into the outer periphery and disposed circumferentially equidistantly relative to each other, each chip being sized and adapted for detachable connection within a respective one of the recesses and having a tipped end cutting edge projecting radially outwardly from the recess and head relative to the longitudinal reamer axis to form a cutting circle diameter upon rotation of the reamer with the cutting circle diameter being smaller than the initial diameter of the prepared hole, the method comprising the steps of:inserting the reamer into the prepared hole with the longitudinal reamer axis oriented coexistently with the longitudinal hole axis, the reamer having at least two heads with the attendant chips; rotating the reamer; upon rotating the reamer, moving the rotating reamer such that the longitudinal reamer axis moves radially relative to the longitudinal hole axis and subsequently moving the rotating reamer such that the longitudinal reamer axis moves circumferentially about the longitudinal hole axis; and simultaneously with the rotating of the reamer and the moving of the longitudinal reamer axis circumferentially about the longitudinal hole axis, pulling the reamer from the workpiece thereby enlarging the initial diameter of the prepared hole.