Milling cutter using inserts of various shapes

Details Milling cutter using inserts of various shapes Milling cutter using inserts of various shapes

B - Operations, Transporting

23

C

B23C 5/20 (2006.01) B23C 5/00 (2006.01) B23C 5/22 (2006.01)

Patent

CA 2421081

A milling cutter (10) includes a generally cylindrical body (12) whose outer periphery is formed with angularly spaced pockets (18) capable for accepting indexable cutting inserts (30) of various cutting geometrical shapes, such as inserts having octagonal, square or round cutting geometry's and a different seating geometry, such as a generally round seating geometry. This is accomplished by each insert (30) including a generally frustoconical transition face (48) extending between the clearance or faceted faces (44) and the rear face (36) of the insert (30). This transition face (48) provides a transition area between the various cutting geometry's and the generally round seating geometry.

Cette invention concerne une fraise (10) comprenant un corps généralement cylindrique (12) qui présente à sa périphérie extérieure des évidements angulairement espacés (18) faits pour recevoir des plaquettes amovibles (30) dont la partie de coupe présente des formes géométriques diverses octogonale, carrée ou ronde- et un siège de forme géométrique différente, généralement arrondie. A cette fin, chaque plaquette (30) comprend un bord intermédiaire de forme généralement tronconique (48) entre les faces en dépouille ou les faces en facettes (44) et son bord arrière (36). Le bord intermédiaire (48) fait office de transition entre les diverses formes des plaquettes et la géométrie généralement arrondie du siège.

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