Patent application number | Description | Published |
20110274885 | ABRASIVE INSERTS - The invention relates to an abrasive insert comprising a layer of PCD or PCBN; and a cemented carbide substrate to which the layer of PCD or PCBN is bonded through an interlayer; the interlayer comprising a bonded mass of superhard abrasive particles and refractory particles wherein an average size of the superhard abrasive particles is the same as or less than that of the refractory particles and to a method of manufacture of the insert. | 11-10-2011 |
20130047397 | SUPERHARD TOOL TIP, METHOD FOR MAKING SAME AND TOOL COMPRISING SAME | 02-28-2013 |
20130199107 | POLYCRYSTALLINE SUPERHARD MATERIAL - A polycrystalline superhard material comprises a sintered mass of superhard grains having a mean superhard grain contiguity of at least 62 percent and at most 92 percent. There is also disclosed a method of making such a polycrystalline superhard material. The method comprises providing a precursor body comprising superhard grains and interstices between the superhard grains, and introducing additive particles into the interstices to form a pre-sinter body. The pre-sinter body is submitted to a temperature and pressure at which superhard material is thermodynamically stable, sintering it and forming polycrystalline superhard material. | 08-08-2013 |
20130209184 | CUTTER ELEMENTS, ROTARY MACHINE TOOLS COMPRISING SAME AND METHOD FOR MAKING SAME - A cutter element ( | 08-15-2013 |
20130263522 | SUPERHARD CONSTRUCTION - 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. | 10-10-2013 |
20140265530 | TIP FOR A PICK TOOL, METHOD OF MAKING SAME AND PICK TOOL COMPRISING SAME - A tip for a pick tool, comprising a polycrystalline diamond (PCD) structure joined to a substrate body. The PCD structure has a strike surface including an apex opposite a boundary with the substrate body. At least an outer volume of the PCD as structure contains filler material between diamond grains, the content of the filler material being more than 5 weight percent of the PCD material in the outer volume. The outer volume is proximate at least an area of the strike surface including the apex, and the thickness of the PCD structure between the apex and the boundary with the substrate body is at least 2.5 mm. | 09-18-2014 |
20140361601 | SUPER-HARD TIP FOR A PICK TOOL AND PICK TOOL COMPRISING SAME - A strike tip for a pick tool, comprising a strike structure joined to a substrate at an interface boundary, the strike structure comprising super-hard material and the substrate comprising carbide material. The strike structure has a strike end opposite the interface boundary, the strike end including a rounded apex having a radius of curvature in a longitudinal plane of at least 3.2 mm and at most 6 mm. | 12-11-2014 |
20150035342 | PICK TOOL AND ASSEMBLY COMPRISING SAME - A pick tool comprising a super-hard strike tip, a base and a unitary cemented carbide support body comprising a head portion including an overhang portion, and an insertion shaft extending from the head portion, a surface of the overhang portion extending laterally from the insertion shaft; the strike tip is attached to the head portion of the support body and the base is provided with a bore into which the insertion shaft is shrink fitted; the base has an external surface adjacent the bore and overhang portion of the head portion is configured to extend over at least an area of the external surface operative to shield the area from wear when in use. | 02-05-2015 |