Seiko Epson Corporation

Hidefumi Nakamura

Yasutoshi Hideshima

Yukihiko Shiohara

Hideki Ishigami

Nobuyuki Hamakura

Taku Kawasaki

Tetsuya Otsuki

Tetsuro Miyao

Takayuki Tamura

Junichi Hayashi

Fumiaki Akahane

Atsushi Nakamura

Makoto Kato

Toshiki Sano

Isamu Otsuka

Koichi Ozaki

Tadao Fukuta

Naoko Shima

Teruo Anraku

Hiroyoshi Otaka

Ryo Numasawa

A device for manufacturing a three-dimensional shaped object includes a table on which a layer of granulated powder is stacked, a layer formation portion that forms the granulated powder on the table into a layer having a predetermined thickness, a compression unit configured to compress a first region in the layer, a processing unit that processes the formation region of the three-dimensional shaped object in the layer, and a control unit that controls the compression unit to form the first region in which the granulated powder are crushed, and the second region in which the granulated powder are not crushed.

Device for manufacturing three-dimensional shaped object and method for manufacturing three-dimensional shaped object

A method for manufacturing a thixomolding material for thixomolding includes a drying step of heating a mixture containing a first powder that contains Mg as a main component, a second powder, a binder, and an organic solvent to dry the organic solvent contained in the mixture, and a stirring step of stirring the mixture heated in the drying step.

Method for manufacturing thixomolding material

An injection molding material for magnesium thixomolding includes: a powder containing Mg as a main component; and a chip containing Mg as a main component, in which a proportion of the powder in the injection molding material for magnesium thixomolding is 5 mass % or more and 45 mass % or less, and a tap density of the powder is 0.15 g/cmor more.

Injection molding material for magnesium thixomolding

A powder for additive manufacturing, which is a powder to be used in a three-dimensional additive manufacturing method, including a plurality of coated particles containing metal particles, and resin coating films that cover the metal particles and contain a caking additive, wherein 0.0001&#x2264;t/D50&#x2264;0.0010 in which t is an average thickness of the resin coating films and D50 is an average particle diameter of the metal particles.

Powder for additive manufacturing, additively manufactured body, method for producing additively manufactured body, and method for producing metal sintered body

A metal powder for powder metallurgy contains Co as a principal component, Cr at 16 mass % or more and 35 mass % or less, and Si at 0.3 mass % or more and 2.0 mass % or less, wherein when one element selected from Ti, V, Y, Zr, Nb, Hf, and Ta is a first element, and one element selected from the group and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number than that of the first element is a second element, the first element is at 0.01 mass % or more and 0.5 mass % or less, and the second element is at 0.01 mass % or more and 0.5 mass % or less.

Metal powder for powder metallurgy, compound, granulated powder, sintered body, and ornament

A metal powder for powder metallurgy contains Fe as a principal component, Cr in a proportion of 11.0 mass % or more and 25.0 mass % or less, Ni in a proportion of 8.0 mass % or more and 30.0 mass % or less, Si in a proportion of 0.20 mass % or more and 1.2 mass % or less, C in a proportion of 0.070 mass % or more and 0.40 mass % or less, Mn in a proportion of 0.10 mass % or more and 2.0 mass % or less, P in a proportion of 0.10 mass % or more and 0.50 mass % or less, and at least one of W and Nb in a proportion of 0.20 mass % or more and 3.0 mass % or less in total.

Metal powder for powder metallurgy, compound, granulated powder, and sintered body

A raw material for thixomolding includes a magnesium-based alloy powder which contains calcium in an amount of 0.2 mass % or more and 5 mass % or less and aluminum in an amount of 2.5 mass % or more and 12 mass % or less, wherein the magnesium-based alloy powder includes an oxide layer which has an average thickness of 30 nm or more and 100 nm or less and contains at least one of calcium and aluminum as an outermost layer. The average dendrite secondary arm spacing of crystal structures of the magnesium-based alloy powder is preferably 5 &#x3bc;m or less.

Raw material for thixomolding, method for producing raw material for thixomolding, and molded body

A gear includes a sintered body, in which Fe is contained as a principal component, Ni is contained in a proportion of 2 mass % or more and 20 mass % or less, Si is contained in a proportion of 0.3 mass % or more and 5.0 mass % or less, C is contained in a proportion of 0.005 mass % or more and 0.3 mass % or less, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, that is contained in a proportion of 0.01 mass % or more and 0.7 mass % or less.

Gear, deceleration device, robot, and moving object

A titanium sintered body is composed of a material containing titanium, and has an oxygen content of 2500 ppm by mass or more and 5500 ppm by mass or less and a surface Vickers hardness of 250 or more and 500 or less. It is preferred that an &#x3b1;-phase and a &#x3b2;-phase are contained as crystal structures, and an area ratio occupied by the &#x3b1;-phase in a cross section is 70% or more and 99.8% or less. It is also preferred that in an X-ray diffraction spectrum obtained by X-ray diffractometry, the value of a peak reflection intensity by the plane orientation (110) of the &#x3b2;-phase is 5% or more and 60% or less of the value of a peak reflection intensity by the plane orientation (100) of the &#x3b1;-phase. It is also preferred that particles composed mainly of titanium oxide are included.

Titanium sintered body, ornament, and heat resistant component

A direct-current electric motor (an electrically powered machine) is a 3-pole brush-equipped direct-current electric motor which is provided with an armature (a rotor), a field element (a stator), a shaft, a commutator, a brush, a bracket, and an end plate. Of these, the armature (an armature) is provided with a dust core configured with a compressed powder compact formed of magnetic powder, and a coil buried in the dust core. On the other hand, the field element is provided with a field magnet which generates a magnetic flux, and a yoke housing which supports the field magnet and also functions as a housing.

Magnetic powder dust core with entirely buried coil or magnet

A metal powder for powder metallurgy contains Fe as a principal component, Ni in a proportion of 5 mass % or more and 20 mass % or less, Si in a proportion of 0.3 mass % or more and 5 mass % or less, and C in a proportion of 0.005 mass % or more and 0.3 mass % or less, and when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number in the periodic table than that of the first element is defined as a second element.

A compound for metal powder injection molding includes secondary particles in which first metal particles are bound to one another, and a matrix region including a binder and second metal particles whose constituent material is different from that of the first metal particles. It is preferred that in the secondary particles, the first metal particles are bound to one another through the binder. It is also preferred that the average particle diameter of the second metal particles is smaller than that of the first metal particles.

Compound for metal powder injection molding, metal powder molded body, method for producing sintered body, and sintered body

A compound for metal powder injection molding includes secondary particles in which first metal particles are bound to one another, and a matrix region including a binder and second metal particles composed of the same constituent material as the first metal particles and having a smaller average particle diameter than the first metal particles. The constituent material of the first metal particles is any of an Fe-based alloy, an Ni-based alloy, and a Co-based alloy.

A method for producing an electrical wiring member includes press-molding a composition containing a resin material and metal particles with an insulating layer, each of which is constituted by a metal particle and a surface insulating layer covering the metal particle and containing a glass material as a main material, thereby obtaining a powder-compacted layer and irradiating the powder-compacted layer with an energy beam, thereby causing the irradiated regions to exhibit electrical conductivity.

Electrical wiring member production method, electrical wiring member forming material, electrical wiring member, electrical wiring board production method, electrical wiring board forming material, electrical wiring board, vibrator, electronic apparatus, and moving object

A dental casting billet material includes: Co as a main component; Cr in a proportion of 26% by mass or more and 35% by mass or less; Mo in a proportion of 5% by mass or more and 12% by mass or less; and Si in a proportion of 0.3% by mass or more and 2.0% by mass or less, wherein the billet material is formed from a sintered body of a metal powder, and the billet material has a relative density of 92% or more and 99.5% or less.

Growing community of inventors

Hachinohe, Japan

Hidefumi Nakamura