Honeycomb cutter and chip breaker/chaf remover

A tool for machining a workpiece of honeycombed material or the like comprising, in combination:

• a honeycomb cutter member, said honeycomb cutter member having a cutting knife and an axial shaft, said cutting knife being disc-shaped and rotatable about its center, said cutting knife having a sharp, peripheral edge extending radially outwardly to slice or cut a workpiece when rotated, said shaft having an inboard end adapted to be received by a rotational motion imparting mechanisms, said shaft having an outboard end secured to said cutting knife for rotation therewith, with the axis of rotation of said shaft passing through the center of said cutting knife;
• and
• a chip breaker/chaf remover device having a central, axial bore mountable over said shaft with the outboard face of said chip breaker/chaf remover device located in association with the inboard face of said cutting knife for rotation therewith, said chip breaker/chaf remover device having at least one sharp, essentially circumferentially directed, radially outward breaker edges located radially inwardly of the radially outward edge of said cutting knife for breaking previously cut portions of the workpiece, said breaker edge being skewed toward the axis of rotation of said shaft as the edge recedes from the cutting knife, and said breaker edge also being slanted circumferentially backward from the cutting edge to provide progressive relief both inwardly and backwardly from the cutting edge, said chip breaker/chaf remover device including at pair of semicircular surfaces for each breaker edge and located radially inwardly of said breaker edges for conveying or removing chaf previously cut by said cutting knife and broken by said breaker edges, said surfaces being formed by conic sections having axes curvature oriented to produce the skew and slant of said breaker edges.

A tool for machining a workpiece of honeycombed material or the like comprising, in combination:

• a honeycomb cutter member, said honeycomb cutter member having a cutting knife and an axial shaft, said cutting knife being disc-shaped and rotatable about its center, said cutting knife having a sharp, peripheral edge extending radially outwardly to slice or cut a workpiece when rotated, said shaft having an inboard end adapted to be received by a rotational motion imparting mechanisms, said shaft having an outboard end secured to said cutting knife for rotation therewith, with the axis of rotation of said shaft passing through the center of said cutting knife;
• and
• a chip breaker/chaf remover device having a central, axial bore mountable over said shaft with the outboard face of said chip breaker/chaf remover device located in association with the inboard face of said cutting knife for rotation therewith, said chip breaker/chaf remover device having at least one sharp, essentially circumferentially directed, radially outward breaker edges located radially inwardly of the radially outward edge of said cutting knife for breaking previously cut portions of the workpiece, said breaker edge being skewed toward the axis of rotation of said shaft as the edge recedes from the cutting knife, and said breaker edge also being slanted circumferentially backward from the cutting edge to provide progressive relief both inwardly and backwardly from the cutting edge, said chip breaker/chaf remover device having two breaker edges located radially inwardly of the peripheral edges of said cutting knife to chop or break chip material previously cut from the workpiece by said cutting knife, said chip breaker/chaf remover device including a pair of semicircular surfaces radially inwardly of said breaker edges for conveying or removing chaf previously cut by said cutting knife and broken by said breaker edges, said surface being formed by conic sections having axes oriented to produce the skew and slant said breaker edges, and means to releasable couple said chip breaker/chaf remover device and said cutter member.