Drill tip and drilling tool having a drill tip

Details Drill tip and drilling tool having a drill tip Drill tip and drilling tool having a drill tip

B - Operations, Transporting

23

B

B23B 51/02 (2006.01)

Patent

CA 2753802

The invention relates to a drill tip (2) comprising a base body (6) having chip flutes (22A,B) and extending in the axial direction along an axis of rotation (8) and having at least two main cutting edges (14A,B) on the front face thereof extending outward in the radial direction to a cutting corner (16A,B). Seen in cross section, the base body is asymmetric relative to rotation about the axis of rotation (8) at the height of the cutting corner (16A,B). The cross section of the base body is simultaneously designed having symmetrical spacing from the main cutting edges (14A,B). The drill tip (2) is in particular designed as an interchangeable modular part of a modularly designed drill tip (5). A drill base body (4) in which the drill tip (2) can be inserted can therefore in turn be designed symmetrically.

L'invention concerne un foret (2) comprenant un corps de base (6) muni de goujures (22A,B), qui s'étend dans la direction axiale le long d'un axe de rotation (8) et dont la face frontale avant présente au moins deux lames principales (14A,B) qui s'étendent dans la direction radiale vers l'extérieur par rapport à un coin de coupe (16A, B). Le corps de base, vu en section transversale, présente une asymétrie au niveau des coins de coupe (16A,B) par rapport à une rotation autour de l'axe de rotation (8). Simultanément, la section transversale du corps de base est configurée de manière symétrique à une certaine distance des lames principales (14A,B). Le foret (2) se présente en particulier sous la forme d'une partie modulaire échangeable d'un outil de perçage (5) modulaire. Un corps de base de perçage (4), dans lequel peut être inséré le foret (2), peut ainsi lui-même être réalisé de manière symétrique.

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