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    • 9. 发明申请
    • COMBINED DRILL AND REAMER TOOL
    • 组合式钻机和复合工具
    • US20130058734A1
    • 2013-03-07
    • US13404726
    • 2012-02-24
    • Vladimir D. Volokh
    • VLADIMIR D. VOLOKH
    • B23B51/08
    • B23B51/08B23B2251/043B23D77/00Y10T408/905
    • A drill-reamer tool comprises a shank portion and a cutting portion coaxial with the shank portion, the cutting portion having an operational portion comprising at least one twist drill spiral roughing cutting edge associated with a land margin, a land clearance and a flute. The cutting portion further comprises at least one spiral finishing edge interlaced with the spiral roughing cutting edge and having associated therewith only a land margin and a flute. The land margin of said finishing edge being provided with a plurality of reamer cutting edges spiraling in an opposite direction to that of the roughing cutting edge. The reamer cutting edges being configured to cut a larger hole than said roughing edge. The operational portion being dimensioned such that during operation, both the roughing cutting edge and the reamer cutting edge are simultaneously operative.
    • 钻孔铰刀工具包括柄部分和与柄部分同轴的切割部分,切割部分具有操作部分,该操作部分包括与陆部边缘,陆地间隙和长笛相关联的至少一个麻花钻螺旋粗切削刃。 所述切割部分还包括至少一个与所述螺旋粗加工切割刃交织的螺旋加工边缘,并且仅具有焊盘边缘和凹槽。 所述精加工边缘的边缘边缘设置有与粗加工刃的方向相反的螺旋状的多个铰刀切割刃。 铰刀切割刃被配置为切割比所述粗加工边缘更大的孔。 该操作部分的尺寸使得在操作期间,粗切削刃和扩孔刀切割刃同时工作。