公开(公告)号：US20060266559A1

公开(公告)日：2006-11-30

申请号：US11140615

申请日：2005-05-26

申请人： Madapusi Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Anthony Griffo ,  Michael Janssen

发明人： Madapusi Keshavan ,  Youhe Zhang ,  Yuelin Shen ,  Anthony Griffo ,  Michael Janssen

IPC分类号： E21B10/46

CPC分类号： E21B10/55 ,  B01J3/06 ,  B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B24D3/10 ,  B24D18/0009 ,  C01B32/25 ,  E21B10/567 ,  E21B2010/563 ,  Y10T428/30

摘要： PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm.

公开(公告)号：US20060201712A1

公开(公告)日：2006-09-14

申请号：US11365298

申请日：2006-03-01

申请人： Youhe Zhang ,  Yuelin Shen

发明人： Youhe Zhang ,  Yuelin Shen

IPC分类号： E21B10/36

CPC分类号： E21B10/567

摘要： A cutter comprising a base portion, an ultrahard layer disposed on said base portion, and at least one recessed region on an outer surface of the cutter. A start of the recessed region disposed a selected distance behind a cutting face.

摘要翻译： 一种切割器，包括基部，设置在所述基部上的超硬层以及所述切割器的外表面上的至少一个凹陷区域。 在切割面后面设置选定距离的凹陷区域的开始。

公开(公告)号：US20060219439A1

公开(公告)日：2006-10-05

申请号：US11372614

申请日：2006-03-10

申请人： Yuelin Shen ,  John Zhang

发明人： Yuelin Shen ,  John Zhang

IPC分类号： E21B10/36

CPC分类号： E21B10/573

摘要： A cutter having a base portion, an ultrahard layer disposed on the base portion, and at least one relief groove formed on an outer surface of the cutter. The at least one relief groove is configured to form a relief gap between the ultrahard layer and an inside surface of a cutter pocket.

摘要翻译： 具有基部的切割器，设置在基部上的超硬层以及形成在切割器的外表面上的至少一个释放槽。 所述至少一个释放槽构造成在所述超硬层与所述刀具槽的内表面之间形成释放间隙。

公开(公告)号：US08499860B2

公开(公告)日：2013-08-06

申请号：US11638934

申请日：2006-12-13

申请人： Yuelin Shen ,  Youhe (John) Zhang ,  Michael Janssen

发明人： Yuelin Shen ,  Youhe (John) Zhang ,  Michael Janssen

IPC分类号： E21B10/36

CPC分类号： E21B10/5673 ,  E21B10/567 ,  E21B10/5676 ,  E21B10/573

摘要： A cutting element is provided having a substrate and an ultra hard material cutting layer over the substrate. The cutting layer includes a surface portion for making contact with a material to be cut by the cutting element. The surface portion in cross-section has a curvature that has a varying radius of curvature. A bit incorporating such a cutting element is also provided.