Reamer
AssigneeKennametal Inc.
InventorUwe Hobohm
Life of this patent
Estimating the term…
Abstract
A reamer for the precision machining of a drilled hole, having a plurality of cutting bars which are separated from one another by chip grooves and extend in the longitudinal direction of the tool, wherein a plurality of chip divider grooves which run in the transverse direction of the tool and divide each cutting bar into cutting segments are provided.
Claims13
A reamer for the fine machining of a bore, the reamer comprising a plurality of cutting strips, which are separated from one another by chip grooves and extend in the longitudinal direction of the tool,
- wherein the reamer has a plurality of chip divider grooves, which extend in the transverse direction of the tool and divide the respective cutting strip into cutting-edge segments,
- wherein the reamer has at least two basic-body regions, of differing outer diameters, that comprises the chip grooves and the cutting strips, the at least two basic-body regions separated by a conical enlargement disposed at a cone angle different from either of the at least two basic-body regions separated thereby, and
- wherein the reamer has a guide end, which precedes in the longitudinal direction of the tool and wherein the guide has a guide sleeve rotatably mounted on the guide end.
A fine machining method for a bore drilled into solid material, comprising a roughing operation by means of a reamer having a plurality of cutting strips, which are separated from one another by chip grooves and extend in the longitudinal direction of the tool, wherein the reamer has a plurality of chip divider grooves, which extend in the transverse direction of the tool and divide the respective cutting strip into cutting-edge segments, wherein the reamer has at least two basic-body regions, of differing outer diameters, that comprises the chip grooves and the cutting strips, the at least two basic-body regions separated by a conical enlargement disposed at a cone angle different from either of the at least two basic-body regions separated thereby, and wherein the reamer has a guide end, which precedes in the longitudinal direction of the tool and wherein the guide has a guide sleeve rotatably mounted on the guide end and comprising a concluding finish-machining by means of a finishing tool.
Dependencies are inferred from the claim text.