Method for producing a cutting tool, and cutting tool
AssigneeKennametal Inc.
InventorsTim Guter, Jürgen Schwägerl
Life of this patent
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Abstract
A method for producing a cutting tool, in particular a drill bit, is specified wherein the cutting tool has a front end (F) at the front and a rear end (R) toward the rear, wherein a tool tip is formed on the front end (F), a point thinning is ground at the tool tip with a grinding tool, the point thinning being ground to be narrower toward the front than toward the rear. The point thinning is ground with a constant point thinning angle (AW). Furthermore, a corresponding cutting tool is specified.
Claims8
A method for producing a drill bit having a front end (F) and a rear end (R), the front end (F) having a tool tip, the method comprising grinding a point thinning at the tool tip with a grinding tool that rotates about an axis of rotation (D), wherein, in a single grinding pass, the grinding tool is guided along a grinding path (P) along in a forward segment (P1) in which the grinding tool is guided toward the tool tip with the axis of rotation (D) orthogonal to a first grinding direction (S), and then the grinding tool is guided along the grinding path (P) in a reverse segment (P2) in which the grinding tool is guided away from the tool tip with the axis of rotation (D) orthogonal to a second grinding direction (S),
- wherein the point thinning is ground with a constant point-thinning angle (AW) with respect to a longitudinal axis (A) of the drill bit, and
- wherein a base of the point thinning has a width that is narrower at the front end of the drill bit and is wider distal the front end the tool tip of the drill bit.
Dependencies are inferred from the claim text.