Rotary cutting apparatuses and cutting inserts for same
AssigneeKennametal Inc.
InventorsBerthold Zeug, Bernhard Eckl, Michael Schuffenhauer, Ruy Frota de Souza Filho, Austin Baer
Life of this patent
Estimating the term…
Abstract
A cutting apparatus can include a cutting insert having one or more discharge grooves that are generally conical in shape. Each discharge groove can be positioned adjacent a respective back shoulder edge of the cutting insert to help direct metal or other material away from the workpiece as a hole, bore, or other type of aperture is formed in the workpiece. Some embodiments of the cutting insert can include a projection or shank that can be positionable within a hole of a rotatable member for attachment of the cutting insert to the member.
Claims20
A cutting apparatus comprising:
- a cutting insert having a body, the body having at least one cutting side, each of the at least one cutting side configured to define a back shoulder edge and a first wall positioned between a groove and the back shoulder edge, the groove defined to be in communication with a first end mouth and a second end mouth opposite the first end mouth, the first end mouth being smaller than the second end mouth;
- a gap being defined in communication with the groove, the gap being tapered such that a portion of the gap adjacent the second end mouth is larger than a portion of the gap defined adjacent to the first end mouth.
A cutting insert for a cutting apparatus comprising:
- a cutting insert having a body, the body having a first cutting side, a second cutting side opposite the first cutting side, a first transitional side extending from a flute of the second cutting side to a back shoulder edge of the first cutting side, and a second transitional side extending from a flute of the first cutting side to a back shoulder edge of the second cutting side;
- the first cutting side configured to define a first wall between the back shoulder edge of the first cutting side and a groove, the groove of the first cutting side defined to be in communication with a first end mouth and a second end mouth opposite the first end mouth, the first end mouth being smaller than the second end mouth;
- a gap of the first cutting side being defined in communication with the groove of the first cutting side, the gap of the first cutting side being tapered such that a portion of the gap adjacent the second end mouth is larger than a portion of the gap defined adjacent to the first end mouth,
- the second cutting side configured to define a first wall between the back shoulder edge of the second cutting side and a groove of the second cutting side, the groove of the second cutting side defined to be in communication with a first end mouth and a second end mouth opposite the first end mouth of the second cutting side, the first end mouth of the second cutting side being smaller than the second end mouth of the second cutting side;
- a gap of the second cutting side being defined in communication with the groove of the second cutting side, the gap of the second cutting side being tapered such that a portion of the gap of the second cutting side adjacent the second end mouth of the second cutting side is larger than a portion of the gap of the second cutting side defined adjacent to the first end mouth of the second cutting side,
- the first cutting side, the second cutting side, the first transitional side and the second transitional side extending between a first end of the body and a second end of the body.
Dependencies are inferred from the claim text.