B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 27/16 (2006.01)
Patent
CA 2682311
The invention relates to a rotatable and reversible cutting attachment (1) cutting eight ways and comprising two opposing, essentially quadratic base surfaces (2) which can be mutually rotated about a central axis (A1) extending perpendicularly to said surfaces, and four identical lateral surfaces (3). A main cutter is formed between each base surface (2) and each lateral surface (3). A bearing surface (8) is formed between two chip steps (7) extending along the associated main cutter (4) of the respective lateral surface (3), said bearing surface extending symmetrically over the step ends (7d) of the adjacent chip steps (7) and transversally to the main cutter (4), up to same.
L'invention concerne un outil de coupe rotatif et réversible (1) à huit tranchants. L'outil de coupe selon l'invention comprend deux surfaces de base opposées (2) pratiquement carrées, qui sont décalées l'une par rapport à l'autre par rotation autour d'un axe central (A1) perpendiculaire aux surfaces de base, ainsi que quatre surfaces latérales identiques (3). Entre chaque surface de base (2) et chaque surface latérale (3) est formé un tranchant principal (4). Une surface d'appui (8) est formée entre deux brise-copeaux (7) qui s'étendent le long du tranchant principal associé (4) de la surface latérale correspondante (3). Cette surface d'appui s'étend symétriquement au-delà des extrémités (7d) des brise-copeaux adjacents (7) et perpendiculairement aux tranchants principaux (4) jusqu'à être adjacente à ces derniers.
Hartloehner Rudi
Kaufmann Igor
Kennametal Inc.
Smart & Biggar
LandOfFree
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