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公开(公告)号：US10900291B2
公开(公告)日：2021-01-26
申请号：US16133643
申请日：2018-09-17
IPC分类号： E21B10/46 , E21B10/55 , C04B41/00 , C22C26/00 , C04B35/645 , C04B35/528 , B32B18/00 , E21B10/567 , E21B10/52 , C04B37/00 , E21B10/573 , B24D3/10 , B24D3/34 , B22F7/08 , B22F7/06 , B24D18/00
摘要： Polycrystalline diamond includes a working surface and a peripheral surface extending around an outer periphery of the working surface. The polycrystalline diamond includes a first volume including an interstitial material and a second volume having a leached region that includes boron and titanium. A method of fabricating a polycrystalline diamond element includes positioning a first volume of diamond particles adjacent to a substrate, the first volume of diamond particles including a material that includes a group 13 element, and positioning a second volume of diamond particles adjacent to the first volume of diamond particles such that the first volume of diamond particles is disposed between the second volume of diamond particles and the substrate, the second volume of diamond particles having a lower concentration of material including the group 13 element than the first volume of diamond particles. Various other articles, assemblies, and methods are also disclosed.
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公开(公告)号：US20200331118A1
公开(公告)日：2020-10-22
申请号：US16092415
申请日：2016-12-29
IPC分类号： B24D3/34 , B24D11/00 , C09D125/14
摘要： Abrasive articles, along with related compositions and methods, are provided. The abrasive articles include a backing, abrasive layer, and supersize coat that includes calcium stearate and an ammonium salt of a modified styrene acrylic polymer. The supersize coat can be dried to a translucent film at temperatures well below the melting temperature of the binder without need for a surfactant. Advantageously, these abrasive articles can reduce swarf accumulation during an abrading operation and enhance cut performance while achieving a high degree of optical clarity.
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公开(公告)号：US20200061776A1
公开(公告)日：2020-02-27
申请号：US16669818
申请日：2019-10-31
申请人： FANUC CORPORATION
发明人： Daisuke Uenishi
摘要： A mirror finishing method for forming a mirror surface on a workpiece with a mirror finishing tool including a conically shaped cutting tool made of polycrystalline diamond or cubic boron nitride that is attached to a distal end of a shank, performs mirror polishing by abutting a conical surface of the cutting tool against a machined surface of the workpiece with the shank tilted with respect to the machined surface of the workpiece.
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公开(公告)号：US10537980B2
公开(公告)日：2020-01-21
申请号：US15378469
申请日：2016-12-14
申请人： Robert Bosch GmbH
发明人： Adrian Schoch
摘要： A method for dry production of a sliding layer on a flexible backing, in particular a backing that includes a textile or an abrasive backing, includes at least the following. A binder, or more particularly an adhesive such as a hot-applied adhesive or a hotmelt, is applied to a flexible backing. The binder is applied in dry form, such as via scattering, and is joined to the backing via exposure to heat to form a sliding layer on the backing and to hold the sliding layer at least one of on and in the backing. A lubricant, or more particularly a lubricant that includes graphite or PTFE, is applied to at least one of the backing and the binder.
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公开(公告)号：US20190314954A1
公开(公告)日：2019-10-17
申请号：US16385653
申请日：2019-04-16
申请人： SKC CO., LTD.
发明人： Hye Young HEO , Jang Won SEO , Jong Wook YUN , Sunghoon YUN , Jaein AHN
摘要： Embodiments relate to a porous polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. According to the embodiments, the size and distribution of the plurality of pores contained in the porous polishing pad can be adjusted in light of the volume thereof. Thus, the plurality of pores have an apparent volume-weighted average pore diameter in a specific range, thereby providing a porous polishing pad that is excellent in such physical properties as polishing rate and the like.
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16.发明申请公开(公告)号：US20190248652A1
公开(公告)日：2019-08-15
申请号：US15763320
申请日：2017-08-25
发明人： Yuh Ishida , Hitoshi Sumiya
IPC分类号： C01B21/064 , B24D3/34 , B23B27/14
CPC分类号： C01B21/0648 , B23B27/148 , B23B2226/12 , B24D3/346 , C01P2002/60 , C01P2002/76 , C01P2006/90 , C04B35/5831 , C04B35/62675 , C04B35/6268 , C04B35/645 , C04B2235/386 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/76 , C04B2235/781 , C04B2235/96
摘要： A method of producing a boron nitride polycrystal includes: a first step of obtaining a thermally treated powder by thermally treating a powder of a high pressure phase boron nitride at more than or equal to 1300° C.; and a second step of obtaining a boron nitride polycrystal by sintering the thermally treated powder under a condition of 8 to 20 GPa and 1200 to 2300° C.
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公开(公告)号：US10377017B2
公开(公告)日：2019-08-13
申请号：US15592406
申请日：2017-05-11
摘要： An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is the volume percent of abrasive grains within the total volume of the body and VBM is the volume percent of bond material within the total volume of the body.
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公开(公告)号：US10358874B2
公开(公告)日：2019-07-23
申请号：US15696335
申请日：2017-09-06
发明人： Nedret Can , Thembinkosi Shabalala
IPC分类号： B24D99/00 , B24D3/34 , B24D3/00 , E21B10/55 , E21B10/567 , E21B10/573 , E21C35/183 , E21C35/18
摘要： A PCD structure comprises a first region and a second region adjacent the first region, the second region being bonded to the first region by intergrowth of diamond grains; the first region comprising a plurality of alternating strata or layers, each stratum or layer having a thickness in the range of around 5 to 300 microns. The second region comprises a plurality of strata or layers, one or more strata or layers in the second region having a thickness greater than the thicknesses of the individual strata or layers in the first region. The alternating layers or strata in the first region comprise first layers or strata alternating with second layers or strata, the first layers or strata being in a state of residual compressive stress and the second layers or strata being in a state of residual tensile stress.
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19.发明授权公开(公告)号：US10357869B2
公开(公告)日：2019-07-23
申请号：US15763011
申请日：2016-09-29
摘要： An abrasive sawing or polishing substrate includes a substrate, a binder C1 covering at least a portion of the substrate, and abrasive particles having an at least partial coating, C2. The abrasive sawing or polishing substrate also includes a coating C3 coating binder C1 and the abrasive particles coated with C2 and at least one light-emitting compound. The abrasive particles coated with C2 are in contact with binder C1 and with coating C3.
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公开(公告)号：US10350732B2
公开(公告)日：2019-07-16
申请号：US15525457
申请日：2015-11-13
发明人： Mark A. Lukowski
摘要： Methods for manufacturing bonded abrasive articles, for example vitrified bonded grinding wheels. A bondable abrasive composition is prepared including abrasive particles, a binder medium and a gamma-pyrone pore inducing material, such as ethyl maltol. A precursor abrasive structure is formed from the composition. The gamma-pyrone pore inducing material is removed from the precursor abrasive structure to provide a porous precursor abrasive structure that is further processed to provide a bonded abrasive article. In some embodiments, the binder medium includes a vitreous bonding material, and the bonded abrasive article is a porous vitrified bonded grinding wheel.
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