• 专利标题: Rotary tool for precision machining of a drilled hole in a workpiece, and method for precision machining of a drilled hole
  • 申请号: US14440397
    申请日: 2013-09-27
  • 公开(公告)号: US09884382B2
    公开(公告)日: 2018-02-06
  • 发明人: Michael Hacker
  • 申请人: Kennametal Inc.
  • 申请人地址: US PA Latrobe
  • 专利权人: KENNAMETAL INC.
  • 当前专利权人: KENNAMETAL INC.
  • 当前专利权人地址: US PA Latrobe
  • 代理商 Ian K. Samways
  • 优先权: DE102012220125 20121105
  • 国际申请: PCT/US2013/062225 WO 20130927
  • 国际公布: WO2014/197000 WO 20141211
  • 主分类号: B23D77/00
  • IPC分类号: B23D77/00 B23D77/06 B23D75/00
Rotary tool for precision machining of a drilled hole in a workpiece, and method for precision machining of a drilled hole
摘要:
In order to achieve as highly accurate an alignment of the frictional tool as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole, the cutting edges of the frictional tool are divided into two cutting groups, the cutting edges of which are spaced apart with respect to one another in each case by an axial spacing from one another. Here, the axial spacing is selected in such a way that, at a predefined first, slower feed speed, merely the cutting edges of the first cutting edge group are in engagement with the workpiece and, at a higher, predefined second feed speed, all cutting edges are in engagement with the workpiece.
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