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1.发明公开
公开(公告)号：EP2533922A1
公开(公告)日：2012-12-19
申请号：EP11705488.2
申请日：2011-02-11
摘要： A tip (20) for a rotary machine tool comprising a superhard structure (12) joined to a cemented carbide substrate 14 by means of at least one intermediate layer (161, 62, 163) disposed between the superhard structure (12) and the cemented carbide substrate (14), the intermediate layer or layers (161, 162, 163) comprising grains of superhard material and grains of a metal carbide material dispersed in a metal binder material.
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公开(公告)号：EP2094418A1
公开(公告)日：2009-09-02
申请号：EP07826923.0
申请日：2007-10-31
CPC分类号： B22F7/06 , B22F2005/001 , B22F2998/00 , C22C26/00 , C22C2026/006 , B22F7/008
摘要： This invention is for a polycrystalline diamond composite material comprising diamond particles and a binder phase, the polycrystalline diamond composite material defining a plurality of interstices and the binder phase being distributed in the interstices to form binder pools. The invention is characterised in that there is present in the binder phase a separate tungsten carbide particulate phase in excess of 0.05 total volume %, but not greater than 2 volume %, expressed as a % of the total composite material and that the tungsten carbide particulate phase is homogenously distributed in the composite material in such a manner that the relative standard deviation of the tungsten carbide grain size is less than 1. The invention extends to a method of manufacturing the composite material and to a polycrystalline diamond abrasive compact comprising the diamond composite material for use in cutting or abrading of a substrate or in drilling applications.
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公开(公告)号：EP2864070A1
公开(公告)日：2015-04-29
申请号：EP13731095.9
申请日：2013-06-18
发明人： OLOFSSON, Bo Christer , JONKER, Cornelis Roelof , NILEN, Roger William Nigel , ANDERSIN, Stig Åke , BARRY, John James
IPC分类号： B22F3/14 , B22F7/06 , C22C26/00 , E21B10/567
摘要： A method of making a cutter structure (1) comprises placing a pre-formed body (4) of hard material having a surface topography in a canister, placing an aggregated mass of grains of superhard material (2) over said surface topography, placing a punch (10) in contact with the superhard material (2), the punch (10) having a surface with a surface topography inverse to that of the hard material body to imprint a pattern in the superhard material (2) complementary to the surface topography of the punch (10). The surface of the punch (10) contacting the superhard material (2) being formed of a ceramic material that does not react chemically with the superhard material (12) and/or a sinter catalyst for the superhard material (2). A pressure of greater than 3 GPa is then together with a temperature sufficiently high for the catalyst to melt to form the cutter structure (1) with a layer of polycrystalline superhard material bonded to the hard material and having a surface topography corresponding to the surface topography of the hard material.
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公开(公告)号：EP2852731B1
公开(公告)日：2018-08-01
申请号：EP13794471.6
申请日：2013-05-22
发明人： DIGIOVANNI, Anthony A. , KADIOGLU, Yavuz , SCOTT, Danny E. , MEINERS, Matthew J. , PESSIER, Rudolf Carl , LYONS, Nicholas J. , VAN DER RIET, Clement D. , HERSCHELL, Donald Royceton , JONKER, Cornelis Roelof , NILEN, Roger William Nigel , DOLAN, Gerard Peter
IPC分类号： B24D18/00 , E21B10/567 , E21B10/573 , B22F5/00 , B23P15/28
CPC分类号： E21B10/5673 , B22F2005/001 , B23P15/28 , B24D18/00 , E21B7/00 , E21B10/573 , E21B10/60
摘要： Cutting elements for earth-boring tools include one or more recesses and/or one or more protrusions in a cutting face of a volume of superabrasive material. The superabrasive material may be disposed on a substrate. The cutting face may be non-planar. The recesses and/or protrusions may include one or more linear segments. The recesses and/or protrusions may comprise discrete features that are laterally isolated from one another. The recesses and/or protrusions may have a helical configuration. The volume of superabrasive material may comprise a plurality of thin layers, at least two of which may differ in at least one characteristic. Methods of forming cutting elements include the formation of such recesses and/or protrusions in and/or on a cutting face of a volume of superabrasive material. Earth-boring tools include such cutting elements, and methods of forming earth-boring tools include attaching such a cutting element to a tool body.
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5.发明公开TWIST DRILL TIPS, PRECURSOR CONSTRUCTIONS FOR USE IN MAKING SAME, AND METHODS FOR MAKING AND USING SAME 有权TIP钻头，PRE建设用于制造相同的，其制造方法SAME
公开(公告)号：EP2718050A1
公开(公告)日：2014-04-16
申请号：EP12726814.2
申请日：2012-06-12
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B22F2005/001 , B23B2226/125 , B23B2226/315 , B23B2251/02 , B23B2251/04 , B23B2251/18 , B23P15/32 , C22C26/00 , Y10T408/81 , Y10T428/24802
摘要： A tip for twist drill, comprising a super-hard structure joined to a substrate at an interface boundary coterminous with an end of the substrate, the super-hard structure comprising sintered polycrystalline material comprising super-hard grains, the super-hard structure defining a super-hard end surface opposite the interface boundary and a plurality of cutting edges configured for boring into a body in use; the super-hard end surface including a centre point or chisel edge, and comprising a plurality of surface regions configured such that respective planes tangential to each of the surface regions are disposed at substantially different angles from the axis of rotation of the tip in use. Precursor constructions for use in manufacturing the tips as well as methods for making the precursor constructions and the tips are disclosed.
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6.发明授权TWIST DRILL TIP, PRECURSOR CONSTRUCTION FOR USE IN MAKING SAME, AND METHOD FOR MAKING SAME 有权TIP钻头，PRE建设用于制造相同的，其制造方法SAME
公开(公告)号：EP2718050B1
公开(公告)日：2016-08-10
申请号：EP12726814.2
申请日：2012-06-12
CPC分类号： B23B51/02 , B22F2005/001 , B23B2226/125 , B23B2226/315 , B23B2251/02 , B23B2251/04 , B23B2251/18 , B23P15/32 , C22C26/00 , Y10T408/81 , Y10T428/24802
摘要： A tip for twist drill, comprising a super-hard structure joined to a substrate at an interface boundary coterminous with an end of the substrate, the super-hard structure comprising sintered polycrystalline material comprising super-hard grains, the super-hard structure defining a super-hard end surface opposite the interface boundary and a plurality of cutting edges configured for boring into a body in use; the super-hard end surface including a centre point or chisel edge, and comprising a plurality of surface regions configured such that respective planes tangential to each of the surface regions are disposed at substantially different angles from the axis of rotation of the tip in use. Precursor constructions for use in manufacturing the tips as well as methods for making the precursor constructions and the tips are disclosed.
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公开(公告)号：EP2533922B1
公开(公告)日：2020-06-03
申请号：EP11705488.2
申请日：2011-02-11
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公开(公告)号：EP2864070B1
公开(公告)日：2020-05-27
申请号：EP13731095.9
申请日：2013-06-18
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