Patent classifications
C22C33/0228
METHODS OF MAKING METAL BOND ABRASIVE ARTICLES AND METAL BOND ABRASIVE ARTICLES
Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.
SILICON OXIDE-COATED SOFT MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
A silicon oxide-coated soft magnetic powder has excellent insulating property and provides a high powder compact density. In making the powder, silicon alkoxide is added to a slurry containing soft magnetic powder containing iron in an amount of 20% by mass or more dispersed in a mixed solvent of water and an organic solvent containing water in an amount of 1% by mass or more and 40% by mass or less. A hydrolysis catalyst for the silicon alkoxide is then added to perform silicon oxide coating. The coated magnetic powder has a coverage factor R of 70% or more defined by R=Si100/(Si+M) (wherein Si and M represent molar fractions of Si and elements constituting the soft magnetic powder obtained by an XPS measurement), a powder compact density of 4.0 g/cm.sup.3 or more, and high at high frequency and high insulating property.
ADDITIVE MANUFACTURED FERROUS COMPONENTS
A method of forming a ferrous metal case-hardened layer using additive manufacturing. The method includes delivering, by a material delivery device, a filler material to a surface of a substrate. The substrate includes a first ferrous metal. The filler material includes a second ferrous metal and a carbon-based material. The method also includes directing, by an energy delivery device, an energy toward a volume of the filler material to join at least some of the filler material to the substrate to form a component.
INDIRECT ADDITIVE MANUFACTURING PROCESS FOR FABRICATING BONDED SOFT MAGNETS
A bonded soft magnet object comprising bonded soft magnetic particles of an iron-containing alloy having a soft magnet characteristic, wherein the bonded soft magnetic particles have a particle size of at least 200 nm and up to 100 microns. Also described herein is a method for producing the bonded soft magnet by indirect additive manufacturing (IAM), such as by: (i) producing a soft magnet preform by bonding soft magnetic particles with an organic binder, wherein the magnetic particles have an iron-containing alloy composition with a soft magnet characteristic, and wherein the particles of the soft magnet material have a particle size of at least 200 nm and up to 100 microns; (ii) subjecting the preform to an elevated temperature sufficient to remove the organic binder to produce a binder-free preform; and (iii) sintering the binder-free preform at a further elevated temperature to produce the bonded soft magnet.
INDIRECT ADDITIVE MANUFACTURING PROCESS FOR FABRICATING BONDED SOFT MAGNETS
A bonded soft magnet object comprising bonded soft magnetic particles of an iron-containing alloy having a soft magnet characteristic, wherein the bonded soft magnetic particles have a particle size of at least 200 nm and up to 100 microns. Also described herein is a method for producing the bonded soft magnet by indirect additive manufacturing (IAM), such as by: (i) producing a soft magnet preform by bonding soft magnetic particles with an organic binder, wherein the magnetic particles have an iron-containing alloy composition with a soft magnet characteristic, and wherein the particles of the soft magnet material have a particle size of at least 200 nm and up to 100 microns; (ii) subjecting the preform to an elevated temperature sufficient to remove the organic binder to produce a binder-free preform; and (iii) sintering the binder-free preform at a further elevated temperature to produce the bonded soft magnet.
METHODS OF INCREASING DENSITY OF 3D-PRINTED AND SINTERED PARTS
A material for producing a three-dimensionally printed part including a metal material and at least one sintering aid in an amount effective to give the three-dimensionally printed part a density of between about 90% and about 100% after sintering is disclosed. A method of printing a three-dimensional part including selecting a metal material, incorporating at least one sintering aid into the metal material to form a print material, and printing the three-dimensional part is also disclosed. A method of producing a sintered metal part including providing a metal material for the sintered metal part incorporating boron as a first sintering aid, incorporating phosphorus as a second sintering aid, forming the metal part in a predetermined form the metal material, and heating the formed metal part to a sintering temperature is also disclosed. Three-dimensionally printed parts are also disclosed.
Fe-Pt-OXIDE-BN-BASED SINTERED COMPACT FOR SPUTTERING TARGET
Provided is an FePt-oxide-BN-based sintered compact for a high-density sputtering target that can suppress generation of particles during sputtering.
The FePt-oxide-BN-based sintered compact for a sputtering target has a mass ratio of N to B (N/B) in a range of 1.300.1.
Iron-based sintered alloy and method for producing same
Produced is an iron-based sintered alloy in which hard particles derived from a titanium carbide powder are dispersed in the form of islands in a matrix comprising a two phase structure of austenite+martensite. The iron-based sintered alloy is obtained by mixing the titanium carbide powder, a Cr powder, a Mo powder, a Co powder, a Fe powder and a powder of Al, Ti or Nb so as to obtain a mixed powder that contains, in terms of mass %, 20-35% of titanium carbide, 3.0-12.0% of Cr, 3.0-8.0% of Mo, 8.0-23% of Ni, 0.6-4.5% of Co and 0.6-1.0% of Al, Ti or Nb, with the balance Fe, and then subjecting the mixed powder to cold isostatic compression molding, vacuum sintering and solution treatment.
Ferromagnetic material sputtering target
There is provided a BN-containing ferromagnetic material sputtering target which is capable of suppressing generation of particles during sputtering. A sputtering target containing from 1 to 40 at. % of B and from 1 to 30 at. % of N and comprising a structure including at least one ferromagnetic metal-containing metal phase and at least one nonmagnetic material phase, wherein an X-ray diffraction profile obtained by analyzing the structure with an X-ray diffraction method exhibits a diffraction peak derived from cubic boron nitride.
Methods of making metal bond abrasive articles and metal bond abrasive articles
Methods of making metal bond abrasive articles via powder bed jetting are disclosed. Metal bond abrasive articles prepared by the method include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.