公开(公告)号：US20190099811A1

公开(公告)日：2019-04-04

申请号：US15722728

申请日：2017-10-02

Applicant: Kennametal Inc.

Inventor： Qi Wang ,  Neal Myers ,  Shi Chen ,  Igor Kaufmann

IPC: B23B27/18

Abstract: A cutting insert includes a tool carrier having a body with a pocket, and a cutting tip affixed to the pocket by brazing. The pocket is defined by a vertical back wall and a horizontal support surface. A notch is formed at the intersection between the vertical back wall and the horizontal support surface. The notch has a non-planar first portion proximate the vertical back wall and formed with a radius, R1, and a planar second portion extending between the first portion and the horizontal support surface and formed at an inclination angle with respect to a plane parallel to the horizontal support surface of the pocket. The design of the notch significantly reduces thermal stress and eliminates the formation of cracks in the pocket of the tool carrier when using an injection molding process to form the tool carrier.

公开(公告)号：US10300532B2

公开(公告)日：2019-05-28

申请号：US15632985

申请日：2017-06-26

Applicant: Kennametal Inc.

Inventor： Shi Chen ,  Qi Wang ,  Igor Kaufmann ,  Jason Won Goldsmith ,  Yingwei Wu

IPC: B27B27/10 ,  B23C5/28 ,  B23B29/00 ,  B23B27/10 ,  B23B27/16 ,  B23B27/00 ,  B23Q11/10

Abstract: A clamp for a tool holder is disclosed. The clamping tool holder includes a body having an insert-receiving pocket and a threaded clamp-receiving bore with a coolant opening for receiving pressurized coolant from a coolant source. A clamp includes a threaded aperture extending from a top surface to a bottom surface and coolant passages in fluid communication with a coolant header. A clamp screw is threaded into the threaded aperture of the clamp. The clamp screw includes a plurality of coolant passages in fluid communication with the coolant opening of the body, and at least one coolant channel in fluid communication with the coolant passage. Coolant from the coolant source enters the coolant opening of the body, travels into the clamp screw, travels into each coolant passage of the clamp, and then exits the clamp in a direction toward a cutting insert-workpiece interface.

公开(公告)号：US20180369923A1

公开(公告)日：2018-12-27

申请号：US15632985

申请日：2017-06-26

Applicant: Kennametal Inc.

Inventor： Shi Chen ,  Qi Wang ,  Igor Kaufmann ,  Jason Won Goldsmith ,  Yingwei Wu

IPC: B23B27/10 ,  B23B27/16 ,  B23C5/28

Abstract: A clamp for a tool holder is disclosed. The clamping tool holder includes a body having an insert-receiving pocket and a threaded clamp-receiving bore with a coolant opening for receiving pressurized coolant from a coolant source. A clamp includes a threaded aperture extending from a top surface to a bottom surface and coolant passages in fluid communication with a coolant header. A clamp screw is threaded into the threaded aperture of the clamp. The clamp screw includes a plurality of coolant passages in fluid communication with the coolant opening of the body, and at least one coolant channel in fluid communication with the coolant passage. Coolant from the coolant source enters the coolant opening of the body, travels into the clamp screw, travels into each coolant passage of the clamp, and then exits the clamp in a direction toward a cutting insert-workpiece interface.

公开(公告)号：US10245645B1

公开(公告)日：2019-04-02

申请号：US15722728

申请日：2017-10-02

Applicant: Kennametal Inc.

Inventor： Qi Wang ,  Neal Myers ,  Shi Chen ,  Igor Kaufmann

IPC: B23B27/00 ,  B23B27/18

Abstract: A cutting insert includes a tool carrier having a body with a pocket, and a cutting tip affixed to the pocket by brazing. The pocket is defined by a vertical back wall and a horizontal support surface. A notch is formed at the intersection between the vertical back wall and the horizontal support surface. The notch has a non-planar first portion proximate the vertical back wall and formed with a radius, R1, and a planar second portion extending between the first portion and the horizontal support surface and formed at an inclination angle with respect to a plane parallel to the horizontal support surface of the pocket. The design of the notch significantly reduces thermal stress and eliminates the formation of cracks in the pocket of the tool carrier when using an injection molding process to form the tool carrier.