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    Drill
    1.
    发明申请
    Drill 有权

    公开(公告)号：US20210299763A1

    公开(公告)日：2021-09-30

    申请号：US17212253

    申请日：2021-03-25

    Applicant: Kennametal Inc.

    Inventor： Herbert Rudolf Kauper ,  Jürgen Schwägerl ,  Christian Strauchmann

    IPC: B23B51/02

    Abstract: The invention relates to a drill comprising a drill tip, wherein the drill tip comprises at least one main cutting edge having a cutting corner, from which the main cutting edge extends to a center, wherein the drill tip comprises at least one additional cutting edge having an additional cutting corner, from which the additional cutting edge extends in the direction of the center, wherein the additional cutting edge is formed only on an outer portion of the drill tip and is thus shorter than the main cutting edge, wherein the additional cutting corner projects beyond the cutting corner.

    Rotary Tool and Method for Manufacturing Such a Rotary Tool
    2.
    发明申请
    Rotary Tool and Method for Manufacturing Such a Rotary Tool 有权

    公开(公告)号：US20250018480A1

    公开(公告)日：2025-01-16

    申请号：US18221049

    申请日：2023-07-12

    Applicant: KENNAMETAL INC.

    Inventor： Herbert Rudolf Kauper ,  Jürgen Schwägerl ,  Christian Strauchmann

    IPC: B23B51/02

    Abstract: A rotary tool (2) is provided, comprising: a main blade (4), a chip flute (6), a lateral surface (8), a flank (10) trailing the main blade (4) and extending from the main blade (4) up to the lateral surface (8) and to the chip flute (6), wherein the flank (10) comprises a kink (12) and is thus concave in configuration, wherein the kink (12) extends from the lateral surface (8) up to the chip flute (6) and thus divides the flank (10) into a leading partial surface (14) and a trailing partial surface (16). The invention further relates to a method for manufacturing such a rotary tool (2).

    Drill
    6.
    发明授权
    Drill 有权

    公开(公告)号：US11819931B2

    公开(公告)日：2023-11-21

    申请号：US17212253

    申请日：2021-03-25

    Applicant: Kennametal Inc.

    Inventor： Herbert Rudolf Kauper ,  Jürgen Schwägerl ,  Christian Strauchmann

    IPC: B23B51/02

    CPC classification number: B23B51/02 ,  B23B2251/18 ,  B23B2251/241

    Abstract: The invention relates to a drill comprising a drill tip, wherein the drill tip comprises at least one main cutting edge having a cutting corner, from which the main cutting edge extends to a center, wherein the drill tip comprises at least one additional cutting edge having an additional cutting corner, from which the additional cutting edge extends in the direction of the center, wherein the additional cutting edge is formed only on an outer portion of the drill tip and is thus shorter than the main cutting edge, wherein the additional cutting corner projects beyond the cutting corner.

    Cutting tool
    7.
    发明申请
    Cutting tool 有权

    公开(公告)号：US20210094106A1

    公开(公告)日：2021-04-01

    申请号：US17031050

    申请日：2020-09-24

    Applicant: Kennametal Inc.

    Inventor： Christian Strauchmann ,  Jürgen Schwägerl ,  Herbert Rudolf Kauper

    IPC: B23B51/02

    Abstract: Cutting tool for the rotary machining of workpieces, in particular a twist drill, with a cutting tip which has at least one main cutting edge and at least one free surface (24), wherein a flank face adjoins the main cutting edge radially to the outside, and wherein a flank angle of the flank face increases in a radially outward direction.

    Drill and method for producing a drill
    9.
    发明公开
    Drill and method for producing a drill 审中-公开

    公开(公告)号：US20230219147A1

    公开(公告)日：2023-07-13

    申请号：US18124191

    申请日：2023-03-21

    Applicant: Kennametal Inc.

    Inventor： Herbert Rudolf Kauper ,  Christian Strauchmann ,  Juergen Schwaegerl

    IPC: B23P15/32 ,  B24B19/16

    CPC classification number: B23P15/32 ,  B24B19/16

    Abstract: The invention relates to a drill comprising a body which extends along a longitudinal axis (L) from a rear side (B) to a front side (F), wherein the body comprises a main cutting edge on the front side (F), wherein the body comprises at least one guide bevel which extends in axial direction (A) and toward the front side (F), wherein, toward the front side (F), the guide bevel has an end section which is tapered. The invention further relates to a method for producing such a drill.

    DRILL TIP AND METHOD FOR PRODUCING A DRILL TIP
    10.
    发明申请
    DRILL TIP AND METHOD FOR PRODUCING A DRILL TIP 有权

    公开(公告)号：US20210213543A1

    公开(公告)日：2021-07-15

    申请号：US17267992

    申请日：2019-07-18

    Applicant: Kennametal Inc.

    Inventor： Herbert Rudolf Kauper ,  Jürgen Schwägerl ,  Christian Strauchmann ,  Julia Tempelmeier

    IPC: B23B51/02

    Abstract: The invention relates to a drill tip (2), comprising a center (4), at which a chisel edge (6) is arranged, and comprising a main cutting edge (8), which adjoins the chisel edge (6) and runs outward from the center (4). A rake angle is formed along the chisel edge (6) and the main cutting edge (8). The main cutting edge (8) has an inner portion (10), which adjoins the chisel edge (6) and is arranged within the center (4). The main cutting edge (8) has an outer portion (12), which outwardly adjoins the inner portion (10) and is arranged outside of the center (4). A point thinning (16) is formed on the drill tip (2), which point thinning is curved in such a way that the inner portion (10) runs arcuately from an outer edge of the center (4) toward the chisel edge (6). The invention further relates to a method for producing a drill tip (2) of this type.

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