Cutters – for shaping – Rotary cutting tool – Including holder having seat for inserted tool
Reexamination Certificate
2005-04-12
2005-04-12
Wellington, A. L. (Department: 3722)
Cutters, for shaping
Rotary cutting tool
Including holder having seat for inserted tool
C409S113000, C409S074000
Reexamination Certificate
active
06877934
ABSTRACT:
A milling head for thread whirling, the milling head includes a plurality of cutting elements evenly disposed around a center hole, each cutting element in the plurality of cutting elements includes at least two cutting surfaces formed thereon. Any one of the at least two cutting surfaces is selectable to extend within the center hole for contacting a work-piece. Each cutting element in the plurality of cutting elements is disposed in a recess formed in a face of the milling head, with each recess defining at least two walls. Each of the at least two walls contacts a side of the cutting element to align the cutting element in a predetermined relationship with respect to the milling head. In one embodiment, the plurality of cutting elements include first and second sets of cutting elements. The first set of cutting elements is evenly disposed around the center hole and contact the work-piece to produce a thread form on the work-piece. The second set of cutting elements is evenly disposed around the center hole and contacts the work-piece to remove material proximate the outside diameter of the work-piece.
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Leo Rakowski; “Putting More Teeth in Thread Whirling”; Production Machining; Jan./Feb. 2004.
Cantor & Colburn LLP
REM Sales, Inc.
Ross Dana
Wellington A. L.
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