Manufacturing of holemaking tools
AssigneeKennametal Inc.
InventorHerbert Rudolf Kauper
Life of this patent
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Abstract
A process for producing a tool having a main body which extends in a longitudinal direction and at least one blade for machining a workpiece includes providing a base coating on the tool; grinding the at least one blade in a manner that removes the base coating in the region of the at least one blade; and providing a second, fine coating, to the at least one ground blade.
Claims19
A process for producing a tool having a main body which extends in a longitudinal direction, at least one blade for machining a workpiece, and at least one flute associated with the at least one blade, the process comprising:
- grinding a coated body having a base coating disposed therein in a manner that removes the base coating in a region of the coated body, wherein grinding the coated body comprises one of:
- a) providing the coated body having at least one preformed blade and at least one preformed flute, each of the preformed blade and the preformed flute having the base coating disposed thereon, and then grinding the at least one preformed blade in a manner that removes the base coating in a region of the at least one preformed blade including a clearance face of the at least one preformed blade and a flute wall of the at least one preformed flute to form at least one ground blade and at least one ground flute;
- or
- b) grinding the coated body in a manner which substantially concurrently 1) forms at least one ground blade having a clearance face and at least one ground flute having a flute wall;
- and 2) removes the base coating in the region of the at least one ground blade the clearance face of the at least one ground blade, and the flute wall of the at least one ground flute;
- and
- providing a second coating to the at least one ground blade.
A process for producing a tool for machining a workpiece, the tool having a main body which extends in a longitudinal direction, the process comprising:
- grinding at least one drilling blade and at least one main chip flute in a blank to form a body;
- providing a base coating on the body to provide a coated body, the base coating having a first layer thickness;
- grinding at least one reamer blade and at least one reamer chip flute in the coated body, thereby removing the base coating in a region of the at least one reamer blade and not removing the base coating in a region of the at least one drilling blade;
- and
- providing a second coating to the at least one reamer blade, the second coating having a second layer thickness,
- wherein the second layer thickness is smaller than the first layer thickness.
A process for producing a tool having a main body which extends in a longitudinal direction, the process comprising:
- grinding at least one drilling blade and at least one reamer blade into a blank to form a body;
- providing a base coating on the body to form a coated body, the base coating having a first layer thickness;
- and
- grinding the coated body in a region of the at least one reamer blade to remove the base coating from the region of the at least one reamer blade;
- and
- providing a second coating to the coated body such that at least the region of the at least one reamer body is coated with the second coating, the second coating having a second layer thickness,
- wherein the second layer thickness is smaller than the first layer thickness.
Dependencies are inferred from the claim text.