Element Six (uk) Limited

Element Six Gmbh

Santonu Ghosh

Christopher John Howard Wort

Vijay Nadasen Vythilingum

Branislav Dzepina

Stig Åke Andersin

Teresa Rodriguez Suarez

Antionette Can

Valentine Kanyanta

Martin Ryan Gardener

Anne Myriam Megne Motchelaho

Stig Ake Andersin

Stig ÅKe Andersin

A cutting element () for a cutting tool has a sensor element, a body of super hard material () having a working surface, the sensor element being attached to a portion of the super hard material (), and one or more conducting wires extending from the sensor element through one or more channels extending through the body of super hard material. The sensor element is bonded to the body of superhard material through a layer of ceramic adhesive.

Cutting elements for a cutting tool and methods of making and using same

This disclosure relates to a friction stir welding (FSW) tool holder comprising a nickel-chromium based alloy.

Friction stir welding tool holder

A cutter assembly for a cutting tool has a super-hard volume of super-hard material having a proximal end and a distal end and including a cavity; and a cover member. The super-hard volume has a super-hard surface at the distal end including a cutting edge. The cavity has a cavity open end at the distal end. The super-hard surface includes a cavity peripheral area coterminous with the cavity open end and the cover member has a cover peripheral area configured to mate with the cavity peripheral area to allow the cover member to cover the cavity at the cavity open end, the covered cavity providing a housing chamber within the super-hard volume. A method of making a cutter assembly is also disclosed.

Cutter assembly and methods for making same

This disclosure relates to a two-piece friction stir welding (FSW) tool insert. The tool insert has a longitudinal axis of rotation and comprises a stirring pin and an annular shoulder coaxially mounted about the stirring pin. The stirring pin and annular shoulder each comprise polycrystalline cubic boron nitride. The annular shoulder is a thin disc with a thickness of 1 to 12 mm and the shoulder comprises a tapered, central aperture, through which the stirring pin protrudes.

Friction stir welding tool insert

A sensor element for a cutting tool () has a hard portion () having a sensing surface (), first and second electrodes (), first and second sets of thermocouple wires () and an electrically insulating portion. The first and second electrodes () are arranged to allow electric current to flow when the sensing surface () contacts external material in response to the cutting tool engaging the external material. A first thermocouple junction () is operable to indicate a temperature of the first electrode and a second thermocouple junction () is operable to measure temperature of the second electrode.

Sensor elements and assemblies, cutting tools comprising same and methods of using same

A sensor element for a cutting tool has a hard portion having a first sensing surface, first and second electrodes, and first and second sets of thermocouple wires, and an electrically insulating portion. The second electrode has a second sensing surface, The hard portion comprises hard and/or super-hard material and the first and second electrodes comprise electrically conductive hard and/or super-hard material, the hard portion isolating the first sensing surface from the second sensing surface. The second electrode is attached to or forms part of an electrically conductive region of the hard portion or a region attached thereto. Electric current flows between the first and second electrodes through external material when the sensing surfaces contact the material in response to the cutting tool engaging the material. The first and second electrodes are operable to indicate any one or more of a temperature of the first and second electrodes, and conductivity between the electrodes.

A sensor system has a cutter element for a cutting tool, an interrogation transceiver operable to transmit a radio-frequency (RF) interrogation signal; and a sensor transceiver system operable to receive the RF interrogation signal and to transmit an RF response signal. The sensor transceiver system includes a signal guide medium configured to transduce between the RF interrogation signal, a guided signal in the signal guide medium, and the RF response signal. A characteristic of the RF response signal is dependent upon a condition of the signal guide medium. The cutter element includes the signal guide medium to allow the condition of the signal guide medium to depend upon a condition of the cutter element proximate the signal guide medium. A method of using the sensor system is also disclosed.

Sensor system, cutter element, cutting tool and method of using same

A composite product has a body of polycrystalline diamond (PCD) material having a PCD proximal end and a PCD distal end, an electronic device including an electronic component, and a connection portion joining the electronic device to the body at the PCD distal end, and comprising metallic join material having a liquidus temperature of 600° C. to 950° C. at atmospheric pressure. At least one of the electronic device and the body includes an electrically insulating portion between the electronic component and the PCD proximal boundary establishing an electrical open circuit condition between the electronic component and the PCD proximal boundary. A method of making the composite product is also disclosed.

Composite polycrystalline diamond (PCD) product and methods of making same

Friction stir welding tool assembly

This disclosure relates a polycrystalline cubic boron nitride, PCBN, composite material for use in friction stir welding. The PCBN composite material comprises tungsten (W), rhenium (Re) and aluminium (Al) in the binder matrix material.

Polycrystalline cubic boron nitride composite material

Polycrystalline cubic boron nitride, PCBN, material and methods of making PCBN. A method includes providing a matrix precursor powder comprising particles having an average particle size no greater than 250 nm, providing a cubic boron nitride, cBN, powder comprising particles of cBN having an average particle size of at least 0.2 intimately mixing the matrix precursor powder and the cBN powder, and sintering the intimately mixed powders at a temperature of at least 1100&#xb0; C. and a pressure of at least 3.5 GPa to form the PCBN material comprising particles of cubic boron nitride, cBN dispersed in a matrix material.

Sintered polycrystalline cubic boron nitride material

This application describes a method of making a super-hard article that includes a super-hard structure bonded to a substrate. The super-hard structure generally includes a sintered plurality of super-hard grains made from cubic boron nitride. The method generally includes providing raw material powder suitable for sintering the super-hard structure; combining the raw material powder with an organic binder material in a liquid medium to form a paste; providing a substrate assembly having a formation surface area configured for forming a boundary of the super-hard structure, the substrate having a recess coterminous with the formation surface area; extruding the paste into contact with the formation surface area to provide a paste assembly; and heat treating and/or sintering the paste assembly to remove the binder material and provide a pre-sinter assembly.

Method of making super-hard articles

A sintered polycrystalline body and a method of forming the sintered polycrystalline body are disclosed. The sintered polycrystalline body comprises a plurality of particles cubic boron nitride dispersed in a matrix. The matrix includes materials selected from compounds of any of titanium and aluminium. The polycrystalline body further comprises 0.1 to 5.0 volume % of lubricating chalcogenide particles dispersed in the matrix. The chalcogenide particles have a coefficient of friction of less than 0.1 with respect to a workpiece material. Preferably sulfide particles are used as lubricant. Preferably 30-70 vol.-% cBN is contained. Sintering takes place at 1100-1600&#xb0; C. and 4-8 GPa.

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Oxfordshire, United Kingdom

Santonu Ghosh