CUTTING TOOL
    1.
    发明申请
    CUTTING TOOL 有权
    切割用具

    公开(公告)号:US20120251253A1

    公开(公告)日:2012-10-04

    申请号:US13431218

    申请日:2012-03-27

    IPC分类号: B23B51/02 B23B27/20 B23B51/00

    摘要: Disclosed is a cutting tool, including: a cutting edge including a coating from a rake face to a flank face, and has a relief angle of not less than 15 degrees, a material of the coating having a higher wear resistance than a base material of the cutting edge, and during cutting of a work, an edge of the coating on the rake face at a top of the cutting edge is worn by friction with the work; with a progress of a wear inward in a radial direction, an edge of the coating on the flank face at the top of the cutting edge is removed by friction with the work to expose the base material thereunder; and the exposed base material is worn by friction with the work to retract the flank face inward in the radial direction.

    摘要翻译: 公开了一种切削工具,包括:切削刃,其包括从前刀面到后刀面的涂层,并且具有不小于15度的倾斜角度,所述涂层的材料具有比基体材料更高的耐磨性 切割边缘,并且在切割工件期间,切削刃顶部的前刀面上的涂层的边缘与工件摩擦磨损; 随着在径向方向向内的磨损进展,通过与工件的摩擦而去除切削刃顶部的侧面上的涂层的边缘以暴露其下的基底材料; 并且暴露的基底材料通过与工件的摩擦而磨损,以使其沿径向向内缩回。

    Drill bit
    3.
    发明授权
    Drill bit 有权
    钻头

    公开(公告)号:US09409239B2

    公开(公告)日:2016-08-09

    申请号:US13489938

    申请日:2012-06-06

    IPC分类号: B23B51/02 B23B51/00

    摘要: Provided is a step-shaped drill bit including at least two stepped cutting edges that are axially provided. A cutting edge of a first step from a tip is formed so as to satisfy at least one of the following conditions. That is, a number of blades is smaller, a point angle of the cutting edge is larger, or a clearance angle of the cutting edge is larger than that of cutting edges of a second and subsequent step(s). As a result, a thrust resistance during a perforation can be reduced compared with a case in which the first step cutting edge is formed such that the number of blades, the point angle of the cutting edge and the clearance angle of the cutting edge are the same as those of the second and subsequent step(s).

    摘要翻译: 提供了一种步进式钻头,其包括轴向设置的至少两个阶梯式切削刃。 形成从尖端的第一台阶的切削刃,以满足以下条件中的至少一个。 也就是说,多个叶片较小,切削刃的点角较大,或者切削刃的间隙角大于第二和后续台阶的切削刃的角度。 结果,与形成第一台阶切削刃的情况相比,可以减少穿孔期间的抗推力,使得刀片的数量,切削刃的点角度和切削刃的间隙角度为 与第二和随后的步骤相同。

    Drill
    4.
    发明授权
    Drill 有权
    钻头

    公开(公告)号:US08734067B2

    公开(公告)日:2014-05-27

    申请号:US12720314

    申请日:2010-03-09

    IPC分类号: B23B51/02

    摘要: A drill includes a pair of main cutting edges extending from a distal portion of the drill to a position close to a proximal end of the drill to entirely define a two-edge configuration, and a pair of auxiliary cutting edges extending between positions at the distal and proximal sides of a maximum diameter position to partly define a four-edge configuration. A ridgeline of each auxiliary cutting edge is located within an angle smaller than 90° from a ridgeline of the corresponding main cutting edge toward the rear in a rotation direction of the drill. The point angle of the auxiliary cutting edges increases at a higher rate than the point angle of the main cutting edges in a predetermined range from the maximum diameter position toward a distal end of the drill.

    摘要翻译: 钻头包括从钻头的远端部分延伸到靠近钻头的近端的位置的一对主切削刃,以完全限定两边缘构型,以及一对在远端的位置之间延伸的辅助切削刃 和最大直径位置的近侧部分地限定四边缘构造。 每个辅助切削刃的棱线位于与钻头的旋转方向相对应的主切削刃的脊线向后方小于90°的角度。 在从钻头的最大直径位置向远端的预定范围内,辅助切削刃的点角以比主切削刃的点角高的速度增加。

    Drill
    5.
    发明申请
    Drill 有权
    钻头

    公开(公告)号:US20100232899A1

    公开(公告)日:2010-09-16

    申请号:US12720314

    申请日:2010-03-09

    IPC分类号: B23B51/02

    摘要: A drill includes a pair of main cutting edges extending from a distal portion of the drill to a position close to a proximal end of the drill to entirely define a two-edge configuration, and a pair of auxiliary cutting edges extending between positions at the distal and proximal sides of a maximum diameter position to partly define a four-edge configuration. A ridgeline of each auxiliary cutting edge is located within an angle smaller than 90° from a ridgeline of the corresponding main cutting edge toward the rear in a rotation direction of the drill. The point angle of the auxiliary cutting edges increases at a higher rate than the point angle of the main cutting edges in a predetermined range from the maximum diameter position toward a distal end of the drill.

    摘要翻译: 钻头包括从钻头的远端部分延伸到靠近钻头的近端的位置的一对主切削刃,以完全限定两边缘构型,以及一对在远端的位置之间延伸的辅助切削刃 和最大直径位置的近侧部分地限定四边缘构造。 每个辅助切削刃的棱线位于与钻头的旋转方向相对应的主切削刃的脊线向后方小于90°的角度。 在从钻头的最大直径位置向远端的预定范围内,辅助切削刃的点角以比主切削刃的点角高的速度增加。