Patent application number | Description | Published |
20080226897 | Cubic Boron Nitride Compacts - The cubic boron nitride compact contains a secondary hard phase, which comprises at least one aluminium magnesium boride compound, such as AlMgB | 09-18-2008 |
20080302023 | Cubic Boron Nitride Compact - A polycrystalline cubic boron nitride compact which comprises greater than 75 volume % and not greater than 90 volume % cubic boron nitride particles, the cubic boron nitride particles comprising particles of at least two average particle sizes, and a binder phase constituting the balance of the compact and comprising at least one titanium compound selected from titanium boride, titanium nitride, titanium carbide and titanium carbonitride and at least one aluminium compound selected from aluminium oxide, aluminium boride, aluminium nitride, aluminium carbide and aluminium carbonitride. | 12-11-2008 |
20090056232 | CUBIC BORON NITRIDE COMPACT - A CBN compact comprises CBN and a matrix phase incorporating a secondary hard phase selected from TiCN, TiC, TiN and mixtures and solid solutions thereof and a maximum amount of titanium diboride where the XRD peak height of the ( | 03-05-2009 |
20090080986 | CUBIC BORON NITRIDE COMPACT - A method of manufacturing a powdered composition or starting material used in producing a CBN compact which comprises CBN, a secondary hard phase and a binder phase includes two steps of attrition milling. First, the attrition milling of the secondary hard phase and the binder phase. Second, adding CBN particles to the fine particle mixture of the first attrition milling and then attrition milling this mixture. | 03-26-2009 |
20090181238 | CUBIC BORON NITRIDE COMPACT - A composition for use in producing a CBN compact comprising about 45 to about 75 volume % CBN, where the CBN is comprised of particles of more than one average particle size, preferably bimodal; a secondary hard phase including a compound containing a nitride, carbonitride or carbide of a Group 4, 5 or 6 transition metal or a mixture or solid solution thereof, and a binder phase. | 07-16-2009 |
20090272041 | METHOD OF MAKING A CBN COMPACT - A layer of a refractory material produced and bonded in situ to a surface of a CBN compact during the high temperature/high pressure manufacture of the CBN compact. | 11-05-2009 |
20090293370 | Cubic Boron Nitride Compact - A method of making polycrystalline CBN compacts, high in CBN content, is provided. The method includes making a powdered composition by subjecting a mixture of CBN, present in an amount of at least 80 volume percent of the mixture, and a powdered binder phase to attrition milling. This powdered mixture is subjected to conditions of elevated temperature and pressure suitable to produce CBN compacts. | 12-03-2009 |
20100018127 | cBN COMPOSITE MATERIAL AND TOOL - The invention provides a tool component comprising a first layer of polycrystalline cBN material which has a rake (working) surface and a flank surface and comprises less than 70 vol% cBN; and a secondary layer across the rake surface or at least partially across the rake surface and comprising a refractory material and optionally a binder phase and optionally cBN, wherein the secondary layer has a higher resistance to crater formation than the first layer of cBN material and has a lower affinity towards iron than cBN. | 01-28-2010 |
20100132266 | CUBIC BORON NITRIDE COMPACTS - The invention is for a cubic nitride compact comprising a polycrystalline mass of cubic boron nitride particles, present in an amount of at least 70 percent by volume and a binder phase, which is metallic in character. The invention extends to a compact in which the binder phase is preferably superalloy in character. | 06-03-2010 |
20120042576 | CUBIC BORON NITRIDE COMPACT - A CBN compact which contains CBN and a matrix phase, wherein the CBN grain size volume frequency distribution has a distribution spread expressed as d90-d10 of 1 micron or greater, and the d90 maximum value is 5 micron or less. | 02-23-2012 |
20130174494 | CUBIC BORON NITRIDE COMPACTS - The invention is for a cubic nitride compact comprising a polycrystalline mass of cubic boron nitride particles, present in an amount of at least 70 percent by volume and a binder phase, which is metallic in character. The invention extends to a compact in which the binder phase is preferably superalloy in character. | 07-11-2013 |