发明申请
- 专利标题： PDC Cutter with Stress Diffusing Structures
- 专利标题（中）： 具有应力扩散结构的PDC切割机
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申请号： US12672927申请日： 2008-08-14
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公开(公告)号： US20110212303A1公开(公告)日： 2011-09-01
- 发明人: John Michael Fuller , Douglas Caraway , Graham Richard Watson
- 申请人： John Michael Fuller , Douglas Caraway , Graham Richard Watson
- 专利权人： Reedhycalog UK Limited
- 当前专利权人： Reedhycalog UK Limited
- 优先权： GB0716268.8 20070821
- 国际申请： PCT/GB08/02739 WO 20080814
- 主分类号： B24D3/00
- IPC分类号： B24D3/00 ; B32B3/02
摘要：
A PCD cutting element for use in earth boring drill bits where the interstices remote from the working surface are filled with a catalyzing material and the interstices adjacent to the working surface are substantially free of the catalyzing material is described. An intermediate region between the substantially free portion and filled portion has a plurality of generally conically sectioned catalyst-free projections which taper down, extending to a second depth from the planar working surface, preferably about 0.5 times or more of the first depth.
公开/授权文献
- US08721752B2 PDC cutter with stress diffusing structures 公开/授权日：2014-05-13
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