Tool holder for a cutting insert and process for manufacturing the tool holder
AssigneeKennametal Inc.
InventorIgor Kaufmann
Life of this patent
Estimating the term…
Abstract
The invention relates to a tool holder (10) for a cutting insert (18), having a tool holder body (12), a recess (16) for a cutting insert (18), a clamping element (20) that can tightly clamp a cutting insert (18) in the recess (16), and at least one cooling channel (40, 42, 44, 50, 70, 72) through which the coolant can be conducted to the cutting insert (18), characterized in that the cross-sectional area and/or the cross-sectional shape of the cooling channel (40, 42, 44, 50, 70, 72) changes along its length. The invention also relates to a process for manufacturing such a tool holder (10), wherein the clamping element (20) is manufactured along with at least one part of the tool holder body (12) in an additive layer process.
Claims16
A tool holder for a cutting insert, comprising:
- a shaft with an abutment section;
- a recess formed in the abutment section for receiving a cutting insert;
- a clamping element for clamping a cutting insert in the recess, the clamping element having a front end;
- and
- a main cooling channel formed in the shaft;
- and
- a clamping element channel formed in the clamping element and in fluid communication with the main cooling channel,
- wherein the clamping element channel has a plurality of side channels formed in the front end of the clamping element, each side channel of the plurality of side channels having an outlet for providing a stream of coolant, wherein the outlet for at least two side channels of the plurality of side channels have a different cross-sectional shape.
Dependencies are inferred from the claim text.