Combination end milling/drilling/reaming cutting tool
AssigneeKennametal Inc.
InventorsKaren Anne Craig, Jason George Chandler
Life of this patent
Estimating the term…
Abstract
A combination end milling/drilling/reaming cutting tool includes an end milling portion, a drilling portion, and a reaming portion. The cutting tool also includes a neck portion between the end milling portion and the drilling portion, and a clearance neck portion between a shank and the reaming portion. A method of machining a workpiece using the combination end milling/drilling/reaming cutting tool is also disclosed.
Claims12
A combination end milling/drilling/reaming cutting tool comprising:
- an end milling portion;
- a reaming portion;
- a drilling portion between the end milling portion and the reaming portion;
- a neck portion between the end milling portion and the drilling portion;
- and
- a clearance neck portion between the reaming portion and a shank.
A combination end milling/drilling/reaming cutting tool comprising:
- an end milling portion;
- a reaming portion;
- and
- a drilling portion between the end milling portion and the reaming portion, wherein the end milling portion, the drilling portion and the reaming portion include a plurality of spiral cutting flutes, and
- wherein the plurality of cutting flutes in the end milling portion are formed at a first angle with respect to a longitudinal axis of the cutting tool, and
- wherein the plurality of cutting flutes in the neck portion are formed at a second angle with respect to the longitudinal axis of the cutting tool at a distance from an end of the cutting tool.
A combination end milling/drilling/reaming cutting tool comprising:
- an end milling portion;
- a drilling portion;
- a reaming portion;
- a neck portion between the end milling portion and the drilling portion;
- a shank;
- and
- a clearance neck portion between the reaming portion and the shank,
- wherein the end milling portion has a first diameter, the neck portion has a second diameter smaller than the first diameter, the drilling portion has a third diameter that is larger than both the first and second diameters, the reaming portion has a fourth diameter that is larger than the first, second and third diameters, and the clearance neck portion has a fifth diameter that is smaller than the third and fourth diameters and larger than the first and second diameters.
A method of machining a workpiece using a combination end milling/drilling/reaming cutting tool comprising an end milling portion, a drilling portion, and a reaming portion, the method comprising:
- positioning the cutting tool with respect to the workpiece to begin a machining cycle;
- drilling a hole in a first layer of material with the end milling portion of the cutting tool using an orbital drilling operation;
- positioning the cutting tool such that a longitudinal axis of the cutting tool is substantially aligned with an axis of the hole;
- drilling the hole in a second layer of material with the drilling portion of the cutting tool using a push drilling operation;
- and
- reaming the hole with the reaming portion of the cutting tool using the push drilling operation.
Dependencies are inferred from the claim text.