Drilling tool
    2.
    发明授权
    Drilling tool 失效
    钻孔工具

    公开(公告)号:US5354156A

    公开(公告)日:1994-10-11

    申请号:US955860

    申请日:1992-12-04

    IPC分类号: B23B51/00 B23B51/04

    摘要: A drilling tool for drilling bores in solid metal, with a shank having at its front end several geometrically similar indexable inserts arranged at various radial distances and staggered with respect to each other by the same peripheral angle, whose working areas overlap, each of them having two equally long cutting edges, two of the respectively contiguous cutting edges inclined with respect to each other at an obtuse angle being simultaneously engaged, whereby the radial inner indexable insert extends slightly with one of its engaged cutting edges beyond the drill axis, at least one of the bisectors of the two pair set cutting edges of indexable inserts being inclined with respect to the longitudinal shank axis by an angle up to 25.degree. m and at least one of the bisectors running at an angle differing from zero with respect to another bisector, so that the sum total differing from zero of the radial force component (F.sub.R) resulting from all engaged effective cutting edges and the corresponding sum of the horizontal force components (F.sub.H) form a general resultant (F.sub.RES) acting upon the cutting edges and which is oriented in the direction of the radially utmost indexable insert at an angle (.beta.) differing therefrom by maximum 45.degree..

    摘要翻译: PCT No.PCT / DE91 / 00425 Sec。 371日期1992年12月4日第 102(e)日期1992年12月4日PCT提交1991年5月22日PCT公布。 WO91 / 18700 PCT出版物 日期1991年12月12日。一种用于以实心金属钻孔的钻孔工具,其柄部在其前端具有几个几何类似的可转位刀片,其以各种径向距离布置,并且相对于彼此以相同的圆周角交错,其工作 区域重叠,它们中的每一个具有两个相同长的切割边缘,两个相邻的切割边缘彼此相对于彼此以钝角同时接合,从而径向内部可转位刀片稍微延伸,其中一个接合的切割边缘超过 钻头轴线,可转位刀片的两对成对切削刃中的至少一个平分线相对于纵向柄轴线倾斜高达25°的角度,并且至少一个平分线以不同于 相对于另一个二等分线为零,使得与所有接合的有效切割e产生的径向力分量(FR)的总和不同 水平力分量(FH)的相应总和形成作用在切削刃上的一般结果(FRES),并且在径向最大可转位刀片的方向上以与其不同的角度(β)定向最大45° 。

    Cutting insert
    3.
    发明授权
    Cutting insert 失效
    切削刀片

    公开(公告)号:US5709509A

    公开(公告)日:1998-01-20

    申请号:US436329

    申请日:1995-05-11

    IPC分类号: B23C5/22 B23B27/22

    摘要: A cutting insert for material-removing machining is formed with at least one transversely extending cutting edge, a transversely extending inner groove extending along and generally the full length of the cutting edge and having an outer edge and an inner edge spaced longitudinally from the outer edge and lying between the outer edge and the cutting edge, and an outer transversely extending groove extending along and generally the full length of the cutting edge and having an outer edge and an inner edge spaced longitudinally from the respective outer edge. The inner groove lies between the outer groove and the land. A transversely extending land surface extends immediately adjacent the cutting edge along the cutting edge between the inner groove and the cutting edge. A row of transversely spaced outer chip-forming elements lie wholly between the outer-groove outer edge and the inner-groove inner edge.

    摘要翻译: PCT No.PCT / DE93 / 01109 Sec。 371日期1995年5月11日 102(e)日期1995年5月11日PCT提交1993年11月18日PCT公布。 公开号WO94 / 12303 PCT 日期1994年6月9日用于材料去除加工的切削刀片形成有至少一个横向延伸的切削刃,横向延伸的内槽,沿着切削刃的大致整个长度延伸并且具有外边缘和内边缘间隔开 并且位于外边缘和切割边缘之间的纵向延伸的外横向延伸的凹槽,并且大体上沿切割边缘的整个长度延伸,并且具有从相应的外边缘纵向间隔开的外边缘和内边缘。 内槽位于外槽和槽脊之间。 横向延伸的平台表面沿着内凹槽和切割边缘之间的切割边缘紧邻切割边缘延伸。 一排横向间隔开的外部芯片形成元件完全位于外槽外边缘和内槽内边缘之间。