B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 51/00 (2006.01) B23B 41/02 (2006.01) B23B 51/04 (2006.01) B23P 15/28 (2006.01) E21B 10/60 (2006.01)
Patent
CA 2192580
A drill primarily intended for ejector drilling is made of one single piece, in order to avoid unsoundness that arises when welding and to avoid weld joint gaps in which a chip may easily get wedged. Moreover, the drill is provided with a turned-out chip space (13) in order to as far as possible avoid chip jamming. The inserts are preferably placed tangentially, which simplifies their mounting. In principle, the inserts are semi-circle formed and this simplifies both their pressing and the making of the insert pockets.
Perceuse destinée principalement au forage par éjecteur, constituée d'une seule pièce, afin d'éviter les aspérités qui se produisent lors du soudage et d'éviter les espaces de connexion par soudage dans lesquels un copeau peut facilement se coincer. Ladite perceuse est en outre dotée d'un espace (13) tourné vers l'extérieur afin d'éviter dans la mesure du possible l'accumulation de copeaux. Les pièces rapportées sont de préférence placées de manière tangentielle, ce qui simplifie leur montage. En principe, lesdites pièces rapportées sont de forme semi-circulaire, ce qui simplifie à la fois leur pressage et la fabrication des poches d'encastrement.
Blomberg Torsten
Sandberg Lars
Gowling Lafleur Henderson Llp
Sandvik Ab
Sandvik Intellectual Property Ab
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