发明授权
US6019553A Metal cutting drill with insert having radially overlapping cutting edges
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金属切削钻头,刀片具有径向重叠的切削刃
- 专利标题: Metal cutting drill with insert having radially overlapping cutting edges
- 专利标题(中): 金属切削钻头,刀片具有径向重叠的切削刃
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申请号: US115636申请日: 1998-07-15
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公开(公告)号: US6019553A公开(公告)日: 2000-02-01
- 发明人: Anthony Yakamavich, Jr.
- 申请人: Anthony Yakamavich, Jr.
- 申请人地址: NJ Fair Lawn
- 专利权人: Sandvik, Inc.
- 当前专利权人: Sandvik, Inc.
- 当前专利权人地址: NJ Fair Lawn
- 主分类号: B23B51/00
- IPC分类号: B23B51/00 ; B23B51/02 ; B23B51/04
摘要:
A metal cutting drill includes a steel drill body, and a carbide insert brazed therein. The drill body includes a front face having a recess formed therein, the recess radially overlapping a longitudinal axis of the drill body. The insert is brazed in the recess and includes a plurality of spaced-apart cutting edges disposed on opposite sides of the axis. The cutting edges radially overlap during a drilling operation. One of the cutting edges projects radially outwardly beyond a side face of the head, and another of the cutting edges terminates radially inwardly of the side face.
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