公开(公告)号：US20220184717A1

公开(公告)日：2022-06-16

申请号：US17439546

申请日：2020-03-13

Applicant: Kennametal Inc.

Inventor： Marcus PAUL ,  Bernhard ECKL ,  Herbert Rudolf KAUPER

IPC: B23B51/10 ,  B23B51/00

Abstract: The combination tool (2), in particular a drilling/chamfering tool, comprises a drill (6) extending in the longitudinal direction (4) with a clamping sleeve (8), which is designed to receive the drill (6) and fasten the drill (6) at a variable length and which has a holding seat (38) for a cutting insert (12). The drill (6) comprises a cutting region (22) provided with grooves (14), wherein the grooves (14) extend helically and are formed between two grooves (14) drill backs (18). At least one of the drill backs (18) is partially flattened to form an adjustment surface (16) for the cutting insert (12), wherein the adjustment surface (16) extends helically. As a result, a length adjustment over a large length range is made possible independently of the twist angle (γ).

公开(公告)号：US20190001421A1

公开(公告)日：2019-01-03

申请号：US16021872

申请日：2018-06-28

Applicant: Kennametal Inc.

Inventor： Josef Konrad HERUD ,  Marcus PAUL

IPC: B23B31/30 ,  B23B31/00 ,  B23B31/20

Abstract: An improved adapter sleeve is submitted which has a shank for insertion into a toolholder for a machine tool, wherein a tool socket for holding a tool is formed in the shank, wherein a number of slots are disposed along the shank so that the shank can be compressed during clamping, wherein a cutting head is formed which is arranged on a front side (F) of the shank. In one embodiment, the cutting head has an insert seat for a cutting insert.