公开(公告)号：WO2017015311A1

公开(公告)日：2017-01-26

申请号：PCT/US2016/043026

申请日：2016-07-20

Applicant: SMITH INTERNATIONAL, INC.

Inventor： BELNAP, John Daniel ,  FANG, Yi ,  FRANCE, Michael David ,  DENBOER, David P. ,  ZHANG, Haibo

IPC: E21B10/46 ,  E21B10/50 ,  E21B10/54

CPC classification number: E21B10/573 ,  B22F7/062 ,  B22F2005/001 ,  C04B35/528 ,  C04B35/6303 ,  C04B35/645 ,  C04B37/025 ,  C04B37/026 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/442 ,  C04B2235/96 ,  C04B2237/086 ,  C04B2237/12 ,  C04B2237/363 ,  C04B2237/401 ,  C04B2237/704 ,  C04B2237/72 ,  C22C26/00 ,  C22C29/08 ,  E21B10/5673

Abstract: Cutting elements include a diamond-bonded body attached with a substrate. The substrate has a coercivity of greater than about 200 Oe, and has a magnetic saturation of from about 73 to 90. The diamond-bonded body has a compressive stress at the surface of greater than about 0.9 GPa after heat treatment, and greater than about 1.2 GPa prior to heat treatment.

Abstract translation: 切割元件包括附着有基底的金刚石结合体。 基体具有大于约200Oe的矫顽力，并且具有约73-90的磁饱和度。金刚石键合体在热处理后表面的压缩应力大于约0.9GPa，并且大于约 1.2 GPa之前的热处理。

公开(公告)号：WO2017106373A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/066701

申请日：2016-12-14

Applicant: SMITH INTERNATIONAL, INC.

Inventor： BAO, Yahua ,  BELNAP, John Daniel ,  CARON, Gregory ,  YU, Feng ,  PENG, Cheng ,  FRANCE, Michael David ,  GARAN, Anatoliy

IPC: E21B10/46 ,  B23P15/28

CPC classification number: E21B10/54

Abstract: A cutting device for use in a drill bit has a body including an ultrahard material. The body has a top surface, a front surface, and at least one lateral surface adjacent the top surface. The lateral surface is oriented at a surface angle relative to the top surface between 30 and 150 degrees. One or more locking features are located on the lateral surface.

Abstract translation: 用于钻头中的切割装置具有包括超硬材料的主体。 本体具有顶面，前面以及与顶面相邻的至少一个侧面。 侧表面相对于顶表面以30至150度之间的表面角定向。 一个或多个锁定功能位于侧面。

公开(公告)号：WO2017106388A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/066730

申请日：2016-12-14

Applicant: SMITH INTERNATIONAL, INC.

Inventor： BAO, Yahua ,  BELNAP, John Daniel

IPC: E21B10/42 ,  E21B10/54

CPC classification number: E21B10/54

Abstract: A cutting bit includes a body, a plurality of blades, and at least one ultrahard insert cast directly into at least one of the plurality of blades. The ultrahard insert is positioned with a rear face directly contacting the blade.

Abstract translation: 切削刀头包括主体，多个刀片以及直接铸入多个刀片中的至少一个中的至少一个超硬刀片。 超硬刀片的背面与刀片直接接触。

公开(公告)号：WO2020041432A1

公开(公告)日：2020-02-27

申请号：PCT/US2019/047447

申请日：2019-08-21

Applicant: SMITH INTERNATIONAL INC.

Inventor： BELNAP, John Daniel ,  BAO, Yahua

IPC: E21B10/567

Abstract: Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions including the carbonate material, where the diamond-bonded body is sintered without a substrate. A matrix casting is formed and mechanically coupled to the body after the body is sintered, and a portion of the body surface is exposed along a surface of the matrix casting. The exposed body surface is thereafter intentionally treated to induce a compressive residual surface stress that is greater than a remaining portion of the body. The compressive residual surface stress is less than about 500 MPa, and from about 100 to 500 MPa, and a remaining region the body may have a residual stress of less than about 300 MPa, and less than about 100 MPa.

公开(公告)号：WO2017105804A1

公开(公告)日：2017-06-22

申请号：PCT/US2016/063709

申请日：2016-11-24

Applicant: SMITH INTERNATIONAL, INC.

Inventor： BAO, Yahua ,  FANG, Yi ,  ZHANG, Haibo ,  BELNAP, John Daniel ,  ZHANG, Youhe

IPC: E21B10/42 ,  E21B10/54

CPC classification number: E21B10/55

Abstract: A cutting element may include: a substrate; and an ultrahard layer on the substrate, the ultrahard layer having a non-planar working surface, the non-planar working surface being formed from a first region and a second region, the first region, encompassing at least a cutting edge or tip of the cutting element and having a differing composition than the second region.

Abstract translation: 切割元件可以包括：衬底; 以及在所述基底上的超硬层，所述超硬层具有非平面工作表面，所述非平面工作表面由第一区域和第二区域形成，所述第一区域至少包围所述第一区域和所述第二区域的切割边缘或尖端 切割元素，并具有与第二区域不同的成分。

公开(公告)号：WO2015157746A1

公开(公告)日：2015-10-15

申请号：PCT/US2015/025491

申请日：2015-04-11

Applicant: SMITH INTERNATIONAL, INC.

Inventor： YAO, Xian ,  BELNAP, John Daniel

IPC: C04B35/583 ,  C04B35/5831 ,  C04B35/5833

CPC classification number: C04B35/5831 ,  C04B35/645 ,  C04B2235/401 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/5481 ,  C04B2235/6567 ,  C04B2235/80 ,  C04B2235/94 ,  C04B2235/96

Abstract: Polycrystalline cubic boron nitride includes cubic boron nitride grains and AlB12 between the cubic boron nitride grains. A method of manufacturing heat-treated polycrystalline cubic boron nitride includes sintering a mixture including cubic boron nitride and aluminum metal powder to form polycrystalline cubic boron nitride, and heat-treating the polycrystalline cubic boron nitride to form the heat-treated polycrystalline cubic boron nitride. A method of manufacturing polycrystalline cubic boron nitride includes sintering a mixture including cubic boron nitride and aluminum metal powder, the mixture including the cubic boron nitride in an amount of 85 vol% to 95 vol% and the aluminum metal powder in an amount of 5 vol% to 15 vol%, based on the total volume of the mixture.

Abstract translation: 多晶立方氮化硼包括立方氮化硼颗粒和立方氮化硼颗粒之间的AlB 12。 制造热处理多晶立方氮化硼的方法包括烧结包括立方氮化硼和铝金属粉末的混合物以形成多晶立方氮化硼，以及热处理多晶立方氮化硼以形成经热处理的多晶立方氮化硼。 制造多晶立方氮化硼的方法包括烧结包括立方氮化硼和铝金属粉末的混合物，所述混合物包括85体积％至95体积％的立方氮化硼和5体积％的铝金属粉末 基于混合物的总体积％至15体积％。