公开(公告)号：US11420273B2

公开(公告)日：2022-08-23

申请号：US16655803

申请日：2019-10-17

Applicant: Kennametal Inc.

Inventor： Xiangdong D. Fang ,  Paul D. Prichard ,  Kevin M. Gamble ,  David Wills ,  Jeff Lane

IPC: B23C5/28 ,  B23C5/10 ,  B23Q11/10

Abstract: In one aspect, rotary cutting tools are described herein comprising sets of coolant channels having exit aperture in the flutes of the tools for efficient coolant delivery to multiple cutting surfaces. Briefly, a rotary cutting tool comprises a shank portion, and a cutting portion extending from the shank portion along a longitudinal axis, the cutting portion comprising flutes helically extending along the longitudinal axis and internal coolant channels comprising exit apertures in the flutes. A projection of an exit aperture of a first set of internal coolant channels intersects a rake face extending below a corner edge of the rotary cutting tool, and a projection of an exit aperture of a second set of internal coolant channels intersects a rake face below a radial cutting edge of the rotary cutting tool.

公开(公告)号：US11318480B2

公开(公告)日：2022-05-03

申请号：US16291389

申请日：2019-03-04

Applicant: Kennametal Inc.

Inventor： Grzegorz Dewicki ,  Joshua T. Singley ,  Pavel Ledyan ,  John D. Robertson ,  Kevin M. Gamble

IPC: F15D1/02 ,  B04B11/02 ,  B01F15/02 ,  B01F7/00

Abstract: In one aspect, centrifuge feed pipes are described herein having design and architecture for mitigating wear during centrifuging operations. In some embodiments, a centrifuge feed pipe comprises a feed material inlet, a feed material outlet, and a conduit body extending along an axis between the feed material inlet and outlet, the conduit body having a variable inner diameter at one or more locations along the axis. In being variable, the inner diameter is not uniform over all radial positions of the inner diameter.

公开(公告)号：US20210114123A1

公开(公告)日：2021-04-22

申请号：US16655803

申请日：2019-10-17

Applicant: Kennametal Inc.

Inventor： Xiangdong D. FANG ,  Paul D. Prichard ,  Kevin M. Gamble ,  David Wills ,  Jeff Lane

IPC: B23C5/28 ,  B23C5/10

Abstract: In one aspect, rotary cutting tools are described herein comprising sets of coolant channels having exit aperture in the flutes of the tools for efficient coolant delivery to multiple cutting surfaces. Briefly, a rotary cutting tool comprises a shank portion, and a cutting portion extending from the shank portion along a longitudinal axis, the cutting portion comprising flutes helically extending along the longitudinal axis and internal coolant channels comprising exit apertures in the flutes. A projection of an exit aperture of a first set of internal coolant channels intersects a rake face extending below a corner edge of the rotary cutting tool, and a projection of an exit aperture of a second set of internal coolant channels intersects a rake face below a radial cutting edge of the rotary cutting tool.