Abstract: The purpose of the present invention is to provide an actuator that has a simple configuration and can stably achieve high output without the occurrence of magnetic saturation. This actuator has: a movable body provided with a cylindrical magnet section having alternately N-pole faces and S-pole faces on the peripheral surface surrounding a rotation shaft; and a fixed body provided with, pole tooth surfaces of the same number as the N-pole faces and the S-pole faces, and a coil that excites the pole tooth sections. The movable body has as a turning reference position a position at which the center of the pole tooth surfaces in the circumferential direction and the switching position of the pole faces of the magnet section face each other, and is held to the fixed body so as to be turnable back and forth around the rotation shaft in the circumferential direction.

Abstract: Provided is a sintered bearing, including Al, Cu, and Ni, the sintered bearing having Al—Cu—Ni alloy structures (3) sintered together. The Al—Cu—Ni alloy structures (3) each have an Al—Cu—Ni matrix phase (?-phase) and an Al—Ni compound phase (?-phase), and are free of an Al—Cu compound phase (?-phase).

Abstract: A method of manufacturing of a component having the steps of manufacturing of a first segment for the component by a powder-bed manufacturing process, and the manufacturing of a second segment for the component originating from the first segment by an additive manufacturing process, such that the second segment projects by a projecting distance over at least one side face of the first segment. Furthermore, a component has the first segment being manufactured by the powder-bed manufacturing process and the second segment being manufactured by the additive manufacturing process, wherein the second segment projects by a projecting distance over at least one side face of the first segment.

Abstract: There is disclosed herein a method of designing a mold, the mold being at least part of a unitary body to be formed from a plurality of layers by 3D printing, the method including defining an inner surface of the mold corresponding to at least part of an outer surface of an object to be molded in the mold; selecting a first material from which at least part of the mold is to be printed; and selecting a second material from which at least another part of the mold is to be printed, the second material having a higher thermal and/or electrical conductivity than the first material, wherein at least one of the layers from which the mold is to be formed by 3D printing includes areas to be printed from each of the first and second materials.

Abstract: An earth-boring drill bit includes a bit body having a powder component and a binder. The powder component includes a plurality of nanotubes disposed on a surface of at least one particle of the powder component.

Abstract: A workpiece manufactured from an additive manufacturing system (AMS) having a particle separator and a method of operating includes modeling the workpiece into layers and modeling the layers into a plurality of regions. The AMS then deposits one of a plurality of particle types into a respective one of the plurality of regions. In this way, the surface finishes of the component may be controlled and material densities from one region to the next and from one layer to the next are also controlled.

Abstract: There is disclosed herein a method of molding an object by infiltrating a matrix material with an infiltration material, the method including providing first and second zones of respective different first and second matrix materials arranged substantially adjacent to each other in a mold, including forming a transition region between the two zones through which the composition of the material in the transition region is gradually varied from the composition of the first matrix material adjacent the first zone to the composition of the second matrix material near the second zone.

Abstract: A method of making a worm gear is provided. The method comprises forming a gear hub from a powdered metal material. Thereafter an outer surface of the gear hub is sealed.

Abstract: A method by which an orthodontic appliance is automatically designed and manufactured from digital lower jaw and tooth shape data of a patient provides for the scanning of the mouth of a patient to produce a three-dimensional digitized model of the shapes of the patient's teeth and their positions in the patient's mouth. The appliance is automatically designed according to the final design, which also can be interactively modified and approved by the orthodontist, with the computer recalculating the effects on the treatment as a result of the doctor's changes. Brackets are fabricated as an integrated set, either by cutting slots therein or by building the brackets in layers. Three-dimensional custom jigs are automatically made to exactly position the brackets on a patient's teeth.

Abstract: A wiring substrate in which a plating layer is sufficiently plated on a surface metal layer and which has an excellent reliability is provided. A wiring substrate includes an insulating base; a heat dissipation member disposed in the insulating base, the heat dissipation member partially exposed from the insulating base, the heat dissipation member containing Cu; a surface metal layer disposed on a surface of the insulating base, the surface metal layer contacting and covering the heat dissipation member, the surface metal layer containing Mo as a main component, the surface metal layer including a surface portion containing Cu; and a plating layer disposed on the surface metal layer, wherein Cu contained in the heat dissipation member and Cu contained in the surface portion are bonded to each other.

Abstract: A stator for a progressive cavity pump or motor comprises a tubular housing having a central axis. In addition, the stator comprises a stator insert coaxially disposed within the housing. The stator insert has a radially outer surface that engages the housing and a radially inner surface defining a helical-shaped through bore extending axially through the stator insert. The stator insert includes an insert body and an insert liner attached to the insert body. The insert body is radially positioned between the housing and the insert liner. The insert body comprises a reinforcement structure and a plurality of voids dispersed within the reinforcement structure.

Abstract: A porous and permeable composite for treatment of contaminated fluids, said composite including a body of iron particles and 0.01-10% by weight of at least one functional ingredient distributed and locked in the pores and cavities of the iron body. Also, methods of making a permeable porous composite for water treatment. Also, use of a permeable porous composite for reducing the content of contaminants in a fluid, wherein said fluid is allowed to pass through the permeable composite.

Abstract: A powder metal component is made of compacted and sintered powder metal particles such as chromium-containing ferrous-based metal and is porous. Following sintering, the pores are impregnated with relatively smaller particles of ceria and/or yttria. The component is then heat treated and the presence of the impregnated ceria and/or yttria serve as nucleation sites for the formation of desirable oxides, such as chromium oxide, on the surface. The impregnated particles that lie below the protective oxide layer remain available throughout the life of the component in the event the original oxide layer becomes worn or damaged, wherein a renewed protective oxide is formed in such regions due to the presence of the impregnated particles.

Abstract: A sintered gear serving as a mechanical structure component is a mechanical structure component made of a metal sintered body, and includes a base region; and a high density region formed so as to include a maximum stress position at which a maximum tensile stress or a maximum shear stress is applied, and to include a surface, in which the high density region is lower in porosity than the base region. A surface hardened layer is formed in a region including the surface by performing a hardening process.

Abstract: The present invention relates to a method for producing diamond-metal composites comprising mixing diamond particles with metal-filler particles forming a diamond/metal-filler mixture, forming a green body of the diamond/metal-filler mixture, optionally green machining the green body to a work piece before or after pre-sintering by heating the green body to a temperature ?500° C., infiltrating the green body or the work piece with one or more wetting elements or infiltrating the green body or the work piece with one or more wetting alloys, which infiltration step being carried out under vacuum or in an inert gas atmosphere at a pressure ?200 Bar. The invention relates further to a green body, a diamond metal composite, and use of the diamond metal composite.

Abstract: A magnetic refrigeration material includes alloy represented by a composition formula of La(Fe, Si)13H, and the alloy includes ?-Fe by a weight ratio lower than 1 wt % and a plurality of pores so that a packing fraction of the alloy is within a range from 85% to 99%.

Abstract: A vacuum heat treatment method for NdFeB rare earth permanent magnetic devices and an equipment thereof are disclosed. A rotary vacuum heat treatment equipment is for processing the NdFeB rare earth permanent magnetic devices with a vacuum heat treatment and obviously improves magnetic performance of the NdFeB rare earth permanent magnetic device, especially coercivity, which facilitates reducing a usage of heavy rare earth elements and protecting rare earth resources. Thus the vacuum heat treatment method and the equipment thereof are able to manufacture high-performance rare earth permanent magnetic devices.

Abstract: A method of treating a porous work piece includes infiltrating a liquid metallic alloy into surface porosity of a work piece and isothermally solidifying the liquid metallic alloy to at least partially fill the surface porosity.

Abstract: A method for manufacturing a high melting point metal based object includes providing pure high melting point metal based powder, fabricating a green object from the powder, by way of a laser sintering technique, providing infiltration treatment to the green object, and providing heating pressure treatment to the green object. The temperature to the green object is controlled to the re-sintering point of the green object.

Abstract: A small diameter, elongated steel article, comprising fully consolidated, prealloyed metal powder is disclosed. The consolidated metal powder has a microstructure that has a substantially uniform distribution of fine grains having a grain size of not larger than about 9 when determined in accordance with ASTM Standard Specification E 112. The microstructure of the consolidated metal powder is further characterized by having a plurality of substantially spheroidal carbides uniformly distributed throughout the consolidated metal powder that are not greater than about 6 microns in major dimension and a plurality of sulfides uniformly distributed throughout the consolidated metal powder wherein the sulfides are not greater than about 2 microns in major dimension. A process for making the elongated steel article is also disclosed.

Abstract: An alloy for R-T-B-based rare earth sintered magnets which contains R which is a rare earth element; T which is a transition metal essentially containing Fe; a metallic element M containing one or more metals selected from Al, Ga and Cu; B and inevitable impurities, in which R accounts for 13 at % to 15 at %, B accounts for 4.5 at % to 6.2 at %, M accounts for 0.1 at % to 2.4 at %, T accounts for balance, a proportion of Dy in all rare earth elements is in a range of 0 at % to 65 at %, and the following Formula 1 is satisfied, 0.0049Dy+0.34?B/TRE?0.0049Dy+0.36??Formula 1 wherein Dy represents a concentration (at %) of a Dy element, B represents a concentration (at %) of a boron element, and TRE represents a concentration (at %) of all the rare earth elements.

Abstract: In a manufacturing method of a magnetic refrigeration material, a powder material made of La (Fe, Si)13 is molded by applying a pressure equal to or higher than 286 MPa and heating at a temperature equal to or lower than 600 degrees Celsius. Thus, a molded product of the magnetic refrigeration material is produced.

Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Abstract: The present invention provides iron-based infiltration methods for manufacturing powder metallurgy components, compositions prepared from those methods, and methods of designing those infiltration methods. Iron-based infiltration methods table include the steps of providing an iron-based infiltrant composed of a near eutectic liquidus composition of a first iron based alloy system and an iron-based base compact composed of a near eutectic solidus powder composition of a second iron based alloy system. The base compact is placed in contact with the infiltrant and heated to a process temperature above the melting point of the infiltrant to form a liquid component of the infiltrant. Lastly, the base compact is infiltrated with the liquid component of the infiltrant. During infiltration, the liquid component of the infiltrant flows into the pores of the base compact.

Abstract: A method for producing a bonded rare-earth magnet according to an embodiment of the present invention includes the steps of: providing a rapidly solidified rare-earth magnet alloy powder; providing a solution in which a resin that is in solid phase at an ordinary temperature is dissolved in an organic solvent; mulling the rapidly solidified rare-earth magnet alloy powder and the solution together and vaporizing the organic solvent, thereby making a bonded rare-earth magnet compound in which magnet powder particles that form the rapidly solidified rare-earth magnet alloy powder are coated with the resin; making a compressed compact by compressing the bonded rare-earth magnet compound under a pressure of 1000 MPa to 2500 MPa; and thermally treating the compressed compact. If the rapidly solidified rare-earth magnet alloy powder to be mulled is 100 mass %, the solution includes 0.4 mass % to 1.0 mass % of the resin and 1.2 mass % to 20 mass % of the organic solvent.

Abstract: An iron-based powder composition for metal injection molding having an average particle size of 20-60 ?m, and having 99% of the particles less than 120 ?m wherein the iron-based powder composition includes, by weight percent of the iron-based powder composition: Mo: 0.3-1.6, P: 0.1-0.6, optionally Cu: up to 3.0, optionally Si: up to 0.6, optionally Cr: up to 5, optionally, unavoidable impurities: up to 1.0, whereof carbon is less than 0.1, the balance being iron, and wherein the sum of Mo and 8*P content is within the range of 2-4.7.

Abstract: The present invention provides a rare earth-iron-nitrogen-based alloy material which can produce a rare earth magnet having excellent magnetic characteristics and a method for producing the same, a rare earth-iron-based alloy material suitable as a raw material of the rare earth magnet and a method for producing the alloy material. A rare earth-iron-based alloy material is heat-treated in a hydrogen-containing atmosphere to produce a multi-phase powder 1 in which a phase 3 of a hydrogen compound of a rare earth element is dispersedly present in a phase 2 of an iron-containing material. A powder compact 4 produced by compression-molding the multi-phase powder 1 is heat-treated in a vacuum with a magnetic field of 3 T or more applied, thereby forming a rare earth-iron-based alloy material 5. The rare earth-iron-based alloy material 5 is heat-treated in a nitrogen atmosphere with a magnetic field of 3.5 T or more applied, thereby forming a rare earth-iron-nitrogen-based alloy material 6.

Abstract: Provided is a manufacturing method of a rare-earth magnet capable of penetrant-diffusing a modifier alloy to increase a coercive force (especially a coercive force under a high-temperature atmosphere) at a temperature lower than the conventional method for manufacturing a rare-earth magnet without using heavy rare-earth metals such as Dy and Tb, and accordingly capable of manufacturing a high coercivity rare-earth magnet at the lowest cost possible.

Abstract: A powder material, a method for manufacturing a communication device, and a communication device are disclosed. The powder material according to an embodiment of the present invention includes quartz glass powder, tungsten powder, and an auxiliary material, where a weight proportion of the quartz glass powder is 5% to 90%, a weight proportion of the tungsten powder is 5% to 90%, and a weight proportion of the auxiliary material is 0 to 20%. The powder material according to another embodiment of the present invention includes titanium powder, tungsten powder, and iron powder, where a weight proportion of the titanium powder is 4% to 80%, a weight proportion of the tungsten powder is 5% to 90%, and a weight proportion of the iron powder is 4% to 80%.

Abstract: A permanent magnet has a grain structure that includes a main phase and a grain boundary phase that is primarily composed of a first metal. A second metal that enhances the coercivity of the permanent magnet and a third metal that has a lower standard free energy of oxide formation than the first metal and the second metal are diffused in the permanent magnet, and the third metal is present in the form of an oxide in the grain boundary phase.

Abstract: A method for manufacturing a resonant tube is provided in the present invention, which comprises: mechanically mixing 88-98 wt. % of iron-nickel alloy powder, 1-8 wt. % of carbonyl iron powder, and 1-8 wt. % of carbonyl nickel powder to form a uniform powder mixture; molding the uniform powder mixture to form a resonant tube blank; and continuously sintering and annealing the resonant tube blank. Also provided in the present invention are a resonant tube and a cavity filter. The method for manufacturing a resonant tube provided in the present invention significantly enhances production efficiency while greatly reducing consumption of raw materials. Moreover, the resonant tube provided in the present invention reduces, to the greatest extent, segregation of alloy components and coarse and uneven microstructures, thereby increasing the performance and stability of the corresponding products.

Abstract: A master alloy used to produce the steel part and a process for producing a sinter hardened steel part from the master alloy are described. The powdered master alloy having a composition of iron, about 1 to less than 5 weight % C, about 3 to less than 15 weight % Mn, and about 3 to less than 15 weight % Cr, wherein the master alloy comprises a microstructure composed of a solid solution of the alloying elements and carbon, the microstructure comprising at least 10 volume % austenite and the remainder as iron compounds. The process comprises: preparing the master alloy, mixing the master alloy with a steel powder to produce a mixture wherein the weight % of the master alloy is from 5 to 35 weight % of the mixture, compacting the mixture into a shape of a part and sintering the mixture to produce the steel part, and controlling the cooling rate after sintering to produce sinter hardening. The master alloy powder can also be used as a sinter hardening enhancer when mixed with low-alloy steel powders.

Abstract: In a method for producing jewelry articles, forming a predetermined shape from a plurality of sinterable materials, heating the plurality of sinterable materials to a first temperature and for a first time period sufficient to produce a substrate that retains the predetermined shape during manipulation, cooling the substrate to a second temperature at which the substrate is manipulable, manipulating the substrate to incorporate at least one design feature in the substrate, heating the substrate to a third temperature and for a second time period sufficient to sinter the substrate, and cooling the substrate to obtain the jewelry article.

Abstract: An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 ?m to 1 ?m. At least a portion of the magnet is porous and has micropores with a major axis of 1 ?m to 20 ?m.

Abstract: A method for producing an anisotropic rare earth magnet according to the present invention comprises a forming step of obtaining a formed body by press-forming a mixed raw material of a magnet raw material capable of generating R2TM14B1-type crystals of a tetragonal compound of a rare earth element (R), boron (B), and a transition element (TM), and a diffusion raw material to serve as a supply source of at least a rare earth element (R?) and Cu; and a diffusing step of diffusing at least R? and Cu onto surfaces or into crystal grain boundaries of the R2TM14B1-type crystals by heating the formed body. In this production method, the diffusion raw material having a low melting point and high wettability envelops the R2TM14B1-type crystals, and therefore an anisotropic rare earth magnet having high coercivity can be obtained without decreasing magnetization which should be inherently exhibited by the magnet raw material.

Abstract: A process for producing a weldable titanium or titanium alloy wire characterised in that full consolidation of the wire is achieved via solid-state processing entailing compaction, extrusion, and rolling, whereby melting of the constituent titanium sponge particles does not occur.

Abstract: An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.

Abstract: A fully dense, powder-metallurgy produced maraging steel alloy article of prealloyed powder for use as a tool for high temperature applications. The article in the as-produced condition having a hardness less than 40 HRC to provide machinability and thereafter the article upon maraging heat treatment having a hardness greater than 45 HRC. A method for producing this article comprises compacting prealloyed powder to produce a fully dense article having a hardness less than 40 HRC and thereafter maraging heat treating to a hardness greater than 45 HRC.

Abstract: A coil component comprising a first split magnetic core and a second split magnetic core, each having an outer core leg, an inner core leg and a back yoke connecting the outer core leg and the inner core leg, and a coil block mounted to the inner core leg, wherein the outer core leg has a sectional area smaller than a sectional area of the inner core leg, a density of magnetic body in the outer core leg is different from a density of the magnetic body in any of the inner core leg and the back yoke, and the first split magnetic core and the second split magnetic core are butted against each other to form a magnetic core of a closed magnetic circuit.

Abstract: A scented article manufactured from a sintered metal powder. The metal powder may be one or more metals, one or more alloys, or any combination or mixture thereof. The scented article is of a weight sufficient to sink to a depth in the water and shaped such that, when urged through the water, the lure moves in a substantially oscillating motion. The scented article is impregnated with a scent, such as a fish attractant, that is slowly diffused in the water as the scented article is urged through the water. A method of manufacturing a scented article is also disclosed.

Abstract: A direct metal laser sintered material including a substrate formed from a laser sintering process, the substrate having at least one surface, and a cladding material brazed onto at least a portion of the surface.

Abstract: A method is provided for manufacturing a turbine component. The method includes forming a first intermediate turbine article with an additive manufacturing process; encapsulating the first intermediate turbine article with an encapsulation layer to form a second intermediate turbine article; and consolidating the second intermediate turbine article to produce the turbine component.

Abstract: Crankshaft bearing cap presenting on one of its faces a semi-cylindrical notch, formed by powder metallurgy with an iron powder blend molded by compaction and sintering, and partially infiltrated with Cu, being the area adjacent to the area around the notch, the one with highest Cu content. A method for manufacturing main bearing caps by infiltration of Cu including the steps of placing the molded cap so that the axis of the semi-cylindrical notch extends in a horizontal direction and the notch cavity is in the upwards position. Placing high Cu content tablets on the upper face of the cap and on the cylindrical arch and sintering of the cap and Cu tablets system.

Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.

Abstract: The present invention features a steel-base sintering alloy having a high wear-resistance for a valve seat of an engine. In preferred embodiments, the steel-base sintering alloy may include a chief element of Ferrum (Fe); and a powder-alloy which are composed of Carbon (C) of 0.6˜1.2 wt %, Nickel (Ni) of 1.0˜3.0 wt %, Cobalt (Co) of 15.0˜25.0 wt %, Chrome (Cr) of 3.0˜9.0 wt %, Molybdenum (Mo) of 8.0˜15.0 wt %, Tungsten (W) of 1.0˜4.0 wt %, Manganese (Mn) of 0.5˜2.0 wt %, and Calcium (Ca) of 0.1˜0.5 wt %.

Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Abstract: A method for manufacturing a rigid internal gear of a wave gear device in which an internally toothed portion formed with internal teeth and a gear main body portion are joined integrally, the method including preforming an internal teeth-forming ring or disc for forming the internally toothed portion by using a first aluminum alloy powder; manufacturing a forging in which the internal teeth-forming ring or disc is placed in a forging die and is integrally formed on its outer side with the gear main body portion using a second aluminum alloy powder, the first aluminum alloy powder being harder and having higher abrasion resistance than the second aluminum alloy powder; and applying post-processing including cutting teeth to the forging.

Abstract: From tungsten or molybdenum powders, a tungsten or molybdenum compact is pressurized and molded into the same dimensions as or slightly larger than the end product and sintered into tungsten or molybdenum skeleton. After copper infiltration, chemical copper etching is applied to remove excess surface copper. A machining allowance with an absolute value >0-?0.1 mm may be applied for the machining of uneven surfaces resulting from the chemical process of copper removal.

Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.

Abstract: Impregnation of a resin into a sintered body (15) enables reduction in an amount of oil to be impregnated into inner pores. Further, by forming pores into which the resin is unimpregnated in a bearing surface (inner peripheral surface (15a)), it is possible to supply oil retained in the pores into bearing gaps and to cause the pores to function as filters for catching contaminants such as abrasion powder in a bearing.