Element Six Gmbh

Element Six Abrasives S.a.

Baker Hughes Corporation

Element Six (uk) Limited

Element Six Abrasives Holdings Limited

Roger William Nigel Nilen

Anthony Albert DiGiovanni

Cornelis Roelof Jonker

Danny Eugene Scott

Nicholas J Lyons

John James Barry

Maweja Kasonde

Clement David Van Der Riet

Habib Saridikmen

Rudolf Carl Pessier

Michael L Doster

Matthew Ray Isbell

Timothy Peter Mollart

Nedret Can

Matthew J Meiners

Derek L Nelms

Antionette Can

Robert Fries

Yavuz Kadioglu

Stig Ake Andersin

Bo Christer Olofsson

Stig Åke Andersin

Gerard Peter Dolan

Donald Royceton Herschell

Richard Stuart Balmer

Stig ÅKe Andersin

A cutting element () includes a substrate (); and a body of superhard polycrystalline material () bonded to the substrate () along an interface, the body of superhard polycrystalline material having a peripheral side edge (). The body of superhard polycrystalline material has a cutting surface (); a plurality of spaced apart cutting edges () extending to the cutting surface () through respective chamfer portions (), the cutting edges being spaced around the peripheral side edge; a plurality of recesses/regions () extending from the cutting surface () towards the substrate, adjacent cutting edges () being spaced apart by a respective one of said recesses/regions (); and a protrusion or recessed region extending from the cutting surface about a central longitudinal axis of the cutting element. A method of making such a cutting element is also disclosed.

Cutting element and methods of making the same

A polycrystalline compact includes a plurality of diamond grains of micron size, submicron size, or both, and a plurality of diamond nanoparticles disposed in interstitial spaces between the plurality of diamond grains. A method of forming a polycrystalline compact includes combining a plurality of micron and/or submicron-sized diamond grains and a plurality of diamond nanoparticles to form a mixture and sintering the mixture in a presence of a carburized binder to form a polycrystalline hard material having a plurality of inter-bonded diamond grains and diamond nanoparticles. Cutting elements including a polycrystalline compact and earth-boring tools bearing such compacts are also disclosed.

Polycrystalline compacts including diamond nanoparticles, cutting elements and earth- boring tools including such compacts, and methods of forming same

A polycrystalline super hard construction has a body of PCD material and a plurality of interstitial regions between inter-bonded diamond grains forming the PCD material. The body also has a first region substantially free of a solvent/catalyzing material which extends a depth from a working surface into the body of PCD material. A second region remote from the working surface includes solvent/catalyzing material in a plurality of the interstitial regions. A chamfer extends between the working surface and a peripheral side surface of the body of PCD material. The chamfer has a height which is the length along a plane perpendicular to the plane along which the working surface extends between the point of intersection of the chamfer with the working surface and the point of intersection of the chamfer and the peripheral side surface of the body of PCD material. The depth of the first region is greater than the height of the chamfer. A first length along a plane extending from the point of intersection of the chamfer and the peripheral side edge of the PCD body at an angle of between around 65 to 75 degrees to the interface between the first and second regions is between around 60% to around 300% of the depth of the first region.

Polycrystalline super hard construction and a method for making same

A method of making a cutter structure () comprises placing a pre-formed body () of hard material having a surface topography in a canister, placing an aggregated mass of grains of superhard material () over said surface topography, placing a punch () in contact with the superhard material (), the punch () having a surface with a surface topography inverse to that of the hard material body to imprint a pattern in the superhard material () complementary to the surface topography of the punch (). The surface of the punch () contacting the superhard material () being formed of a ceramic material that does not react chemically with the superhard material () and/or a sinter catalyst for the superhard material (). 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 () 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.

Cutting inserts and method for making same

A method of making a body of polycrystalline superhard material comprising placing an aggregated mass of grains of superhard material into a canister, placing a ceramic layer either in direct contact with the aggregated mass of grains of superhard material or in indirect contact therewith, the ceramic layer being spaced from the grains by an interlayer of material when present, the ceramic layer having a surface with surface topology, the surface topology imprinting a pattern in the aggregated mass of grains of superhard material complementary to the surface topology, the ceramic material and the material of the interlayer being such that they do not react chemically with the superhard material and/or a sinter catalyst material for the grains of superhard material. The aggregated mass of grains of superhard material and ceramic layer are subjected to a pressure of greater than 5.5 GPa and sintered to form a body of polycrystalline superhard material having a surface topology complementary to the surface topology of the ceramic layer. The ceramic layer and interlayer if present are then removed from the body of polycrystalline material. There is also disclosed a body of polycrystalline superhard material having a surface topology on a first surface, the first surface being substantially free of material from a canister used in formation of the body of polycrystalline superhard material.

Polycrystalline superhard material and method for making same

The invention relates to an insert for an attack tool, the insert comprising a super-hard cap having a volume and bonded to a substrate at an interface, the super-hard cap having an average Young's modulus of greater than 900 GPa and the substrate characterized in that it comprises a reinforcing bolster portion as a means for stiffening a region of the substrate proximate the interface, the reinforcing bolster portion having an aggregate volume that is greater than that of the super-hard cap and an average Young's modulus at least 60% that of the super-hard cap. The invention further relates to a method for manufacturing such an insert and a method for using such an insert.

Insert for an attack tool, method for making same and tools incorporating same

A method of making a superhard construction includes providing a polycrystalline superhard (PCS) structure comprising bonded grains of a superhard material, providing an aggregated mass comprising grains of the superhard material, and providing a substrate having a recess configured for accommodating the PCS structure. The PCS structure is placed into the recess with the aggregated mass of superhard grains positioned adjacent the PCS structure to form an unjoined assembly. Pressure and heat are then applied to the unjoined assembly to join the aggregated mass to the PCS structure and form the superhard construction.

Superhard construction

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.

Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods

A method of making a cutter structure comprising super-hard material defining a rake face topology is provided. The method includes providing a pre-sinter assembly comprising a substrate body having a formation surface defining a topology complementary to the rake face topology, and an aggregation comprising a plurality of super-hard grains, the aggregation disposed adjacent the formation surface of the substrate body, the substrate body comprising a source of catalyst or binder material capable of promoting the sintering of the super-hard grains at a pressure and temperature at which the super-hard material is thermodynamically stable; subjecting the pre-sinter assembly to the pressure and temperature to provide a sintered polycrystalline super-hard structure joined to the formation surface of the substrate body at a first major boundary of the super-hard structure and having a second major boundary surface opposite the formation surface; removing the substrate body to expose the first major boundary of the super-hard structure defining the rake face topology. Cutter inserts and machine tools are also provided.

Cutter structures, inserts comprising same and method for making same

A method for making a polycrystalline diamond (PCD) construction comprises providing a cemented carbide substrate comprising carbide grains cemented together by a cement material, subjecting the substrate to a first pressure treatment, treating the substrate to remove at least some of the cement material from at least a region of the substrate adjacent a boundary defined by the substrate, and subjecting the substrate to a second pressure treatment, in contact with or bonded at the boundary to a diamondiferous structure.

Polycrystalline diamond

Growing community of inventors

Oxfordshire, United Kingdom

Roger William Nigel Nilen