Cutting by use of rotating axially moving tool – Tool of specific diverse material
Reexamination Certificate
2008-01-22
2008-01-22
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Tool of specific diverse material
C408S227000, C408S705000, C408S083000
Reexamination Certificate
active
07320565
ABSTRACT:
In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip evacuation, which channel mouths in front and rear ends of the body. Characteristic of the invention is that one or more cutting edges (4) are made integrally with the rest of the body, more precisely from a hard material, such as cemented carbide or CERMET. In a second aspect, the invention also relates to a method for the manufacture of such a drill body. In a third aspect, the invention furthermore relates to a drilling tool for deep hole drilling.
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Danielsson Åke
Silver Bengt
Drinker Biddle & Reath LLP
Howell Daniel W.
Sandvik Intellectual Property AB
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