Abrading – Abrading process – Drill – thread – thread cutter – reamer – or rotary cutter abrading
Patent
1997-08-19
1999-02-09
Rose, Robert A.
Abrading
Abrading process
Drill, thread, thread cutter, reamer, or rotary cutter abrading
409132, 409198, 761011, B24B 306
Patent
active
058686061
ABSTRACT:
The present invention relates to a copying cutter provided with a cylindrical or conical body having a spherical end, constituting the active portion of the cutter, said end including a plurality of flutes inclined at a determined angle .theta. relative to the longitudinal axis of the cutter and formed along circular arcs at a determined distance x from the midplane P of the cutter, an inside face and an outside face of each of the flutes constituting, after machining, respectively a cutting face and clearance faces of each tooth of the cutter. The clearance faces comprise a first clearance face and an additional clearance face presenting at least a first facet. The cutting face has a cutting angle .gamma. given by the following equation: ##EQU1## where R is the radius of the cutter. The present invention also relates to a method of manufacturing the cutter.
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"End Mill Announced", Iron Age, vol. 190, No. 2, Jul. 12, 1962, p. 154.
Nguyen George
Rose Robert A.
Societe Europeene de Propulsion
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