发明申请
US20160010396A1 DRILLING OR ABRADING TOOL HAVING A WORKING SURFACE WITH AN ARRAY OF BLIND APERTURES PLUGGED WITH SUPER-ABRASIVE MATERIAL
审中-公开
钻孔或钻孔工具，具有带有超磨料材料的盲孔阵列的工作表面
- 专利标题： DRILLING OR ABRADING TOOL HAVING A WORKING SURFACE WITH AN ARRAY OF BLIND APERTURES PLUGGED WITH SUPER-ABRASIVE MATERIAL
- 专利标题（中）： 钻孔或钻孔工具，具有带有超磨料材料的盲孔阵列的工作表面
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申请号： US14862565申请日： 2015-09-23
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公开(公告)号： US20160010396A1公开(公告)日： 2016-01-14
- 发明人: Michel De Reynal
- 申请人： Varel Europe S.A.S.
- 申请人地址： FR Pau
- 专利权人： Varel Europe S.A.S.
- 当前专利权人： Varel Europe S.A.S.
- 当前专利权人地址： FR Pau
- 主分类号： E21B10/54
- IPC分类号： E21B10/54 ; E21B10/42
摘要：
A drill bit includes a crown portion that has a plurality of blades that are separated from each other by a junk slot. Each blade includes a plurality of blind micro-holes formed in a working surface of the blade where each blind micro-hole in the plurality of blind micro-holes has a depth of 2 mm to 10 mm and a circular cross-section with a diameter of 1 mm to 3.5 mm. A super-abrasive material fills each blind micro-hole of the plurality of blind micro-holes. The super-abrasive material filling each of the plurality of blind apertures may be a polycrystalline diamond compact or an impregnated diamond material (such as formed by fused tungsten carbide impregnating randomly distributed diamond particles). The blind apertures may be formed in the working surface using electrical discharge machining
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