Abstract: A laminated iron core manufacturing apparatus for laminating a plurality of punched members obtained by punching a plate-shaped member, including: a convey unit conveys the plate-shaped member; a lifter supports the plate-shaped member; a liquid material supply unit adheres a liquid material to regions to be the punched members of one main surface of the plate-shaped member; and a punching unit to punches the plate-shaped member after the liquid material is applied to form the punched members. The liquid material supply unit adheres the liquid material to the plate-shaped member while avoiding, in the regions to be the punched members in the plate-shaped member, a contact region where the lifter on a downstream side of an adhesion location of the liquid material in the liquid material supply unit and on an upstream side of the punching unit comes into contact with the plate-shaped member.

Abstract: A downlight fixture housing fabrication method in which upper and lower downlight fixture housing portions are formed in separate steps and joined by press-fitting, a bonding agent, pinning, and/or threaded engagement.

Abstract: There are provided a method for manufacturing a core product, a method for removing a residual resin, and device for removing a residual resin including: supplying a molten resin; placing a conveying jig on a collection unit by conveying the conveying jig from a resin supply device to the collection unit together with a core body; splitting the resin solidified in a resin forming region from the resin solidified inside a resin flow path by removing the core body from the conveying jig; forming the residual resin which is a residue of the solidified resin inside the resin flow path and acquiring the core product including the core body and solidified resin formed in the resin forming region; and dropping the residual resin from the resin flow path into the collection unit by causing an extrusion unit to abut against the residual resin from above.

Abstract: A manufacturing method of a laminated iron core includes: laminating a plurality of punched members to form a temporary laminate; pressing the temporary laminate with a first load to obtain a laminate; and processing the laminate while pressing the laminate with a second load that is equal to or less than the first load. The manufacturing method of the laminated iron core according to the present disclosure provides a manufacturing method in which subsequent processing can be favorably performed after the laminate is obtained.

Abstract: A split-type laminated iron core is composed by laminating a plurality of metal plate materials having an annular shape. The metal plate material includes a first split piece and a second split piece arranged in a circumferential direction and divided by a predetermined cutting line. A shear surface formed on a first end surface of the first split piece and a shear surface formed on a second end surface of the second split piece abut on each other, and the first split piece and the second split piece are temporarily connected via the cutting line defined by a boundary between the first end surface and the second end surface so that the first end surface and the second end surface do not completely overlap.

Abstract: A manufacturing method of a laminated iron core by laminating a plurality of blanked members to form a laminate, the laminate including a pair of first and second end surfaces and the plurality of blanked members being interlocked by a caulk in a lamination direction of the laminate, includes: forming the laminate such that a protrusion of the caulk protrudes downward from the first end surface being in a downward state; placing the laminate on support such that the protrusion is not in contact with a support surface of the support; and processing the laminate in a state where the laminate is placed on the support.

Abstract: There are provided a laminated iron core, a manufacturing method thereof, and a progressive die machine, in which the laminated iron core includes: a plurality of iron core pieces which are laminated; adhesives that bond the iron core pieces adjacent to each other. Each of the iron core pieces includes an annular yoke portion and a plurality of teeth portions projecting radially from the yoke portion. Each of the adhesives is arranged at a different radial distance from a central axis of the iron core pieces and is evenly arranged in a circumferential direction of the iron core pieces on at least one of the entire yoke portion and the entire teeth portions.

Abstract: A laminated iron core includes a plurality of blanked iron core pieces laminated together, a continuity of side parts of the iron core pieces configuring a side surface of the laminated iron core. The side part of each iron core piece includes a specific light reflection area having a prescribed width along a circumferential direction, where the specific light reflection area has different light reflection characteristics from the other area of the side part of the iron core piece, and a striped pattern, configured by the specific light reflection areas, exists on the side surface of the laminated iron core.

Abstract: There are provided a core unit manufacturing apparatus and a core unit manufacturing method including: a molding device that fills a resin into a space portion in a core body; a resin transfer unit that transfers a resin material to the molding device to supply the resin material thereto; and a core transfer unit that carries the core body in and out of a part between a pair of dies of the molding device. The resin transfer unit and the core transfer unit are arranged such that: the resin transfer unit supplies the resin to the molding device from one side position of side surfaces of the molding device; and the core transfer unit carries the core body in and out of the molding device from the other side position of the side surfaces of the molding device, the other side position being different from one side position.

Abstract: An annular core piece in which an annular core piece can be received inside a contour of an outer circumstance of the annular core piece and the number of recesses formed on the outer circumstance is small is provided. In an annular core piece including a plurality of recesses opened in an outer circumferential part, the recess includes a narrowed part and a raised part, and a transverse width of the narrowed part is made narrower than a transverse width of a different region present on a side of a bottom of the recess further beyond the narrowed part, and the raised part is formed such that a part of the bottom of the recess is raised and projected toward an opening end of the recess.

Abstract: A method for manufacturing a laminated iron core includes providing a plurality of annular iron core piece rows, each of which is configured by annularly arranging a plurality of divided iron core pieces including yokes and teeth, and the yokes of the annularly-adjacent divided iron core pieces in the annular iron core piece row are mutually different in shape. In the method, the annular iron core piece rows are laminated by changing a rotational angle of the newly laminated annular iron core piece row relatively to the lastly laminated annular iron core piece row laminated so that the divided iron core piece with a shape different from that of the divided iron core piece is laminated on the lastly laminated divided iron core piece.

Abstract: A device for manufacturing a laminated iron core includes: a punch unit configured to form protrusions, and including N number of punches as a set, the N being a natural number larger than M; and N number of auxiliary punches. The N number of auxiliary punches are configured such that L number of auxiliary punches selected from the N number of auxiliary punches performs a nullification processing on a metal sheet, the nullification processing being configured to nullify a processing with the L number of punches among the N number of punches, the L being the natural number that is obtained by subtracting the M from the N. According to the above configurations, for example, since a processing position with the plurality of punches is limited in one position, a positional accuracy of protrusions formed in punched members with the plurality of punches is improved.

Abstract: There are provided a method and a device for manufacturing an iron core product, including: holding first and second inserts by first and second holding portions provided in a holding unit; and then displacing at least one of the first holding portion and the second holding portion such that a posture of the first insert corresponds to an opening of a first receiving portion provided in a first main surface of a first receiver and a posture of the second insert corresponds to an opening of a second receiving portion provided in the first main surface; thereafter inserting the first insert from the first holding portion into the first receiving portion and inserting the second insert from the second holding portion into the second receiving portion in a state where the holding unit is arranged to face the first main surface.

Abstract: A metal laminate includes a lamination of a first metal plate and a second metal plate. The first metal plate includes a caulking that exhibits a mountain shape protruding from a back surface side and recessed on a front surface side, and the second metal plate includes an accommodating portion configured to accommodate the caulking such that the caulking is fitted to the accommodating portion. The caulking includes a recessed portion provided on an inner concave surface of the caulking and recessed toward the back surface side of the first metal plate, and an abutting portion provided on an outer convex surface of the caulking and abutted against an inner surface of the accommodating portion at a position corresponding to the recessed portion. The abutting portion expands laterally from the outer convex surface toward the inner surface of the accommodating portion.

Abstract: A device and a method for manufacturing a laminated iron core are provided for including: a first supply unit of supplying a first adhesive to a first part of a predetermined region, the predetermined region corresponding to a punched member of a strip-shaped metal sheet intermittently fed in one predetermined direction; a second supply unit arranged at a downstream side in a conveyance direction of the metal sheet with respect to the first supply unit, and of supplying a second adhesive to a second part different from the first part of the predetermined region; and a punching unit of punching the predetermined region of the metal sheet to which the first supply unit and the second supply unit supply the first adhesive and the second adhesive, so as to form the punched member having the first adhesive and the second adhesive applied on the first part and the second part.

Abstract: A method for manufacturing a laminated iron core product includes laminating a plurality of iron core members which are punched from a first metal plate to form a laminate, removing oil adhering to the laminate, removing oil adhering to an end surface plate which is punched from a second metal plate, and disposing the end surface plate on an end surface of the laminate and welding the end surface plate and the laminate.

Abstract: There is provided a metal component used for manufacturing a semiconductor device, including: a base material having an electrical conductivity; a nickel layer formed on a surface of the base material and containing nickel as a main component; and a noble metal layer formed on a surface of the nickel layer. The nickel layer includes a first nickel layer not containing phosphorus, and a second nickel layer containing 0.01 to 1 in percent by weight of phosphorus. According to the metal component of the present disclosure, a thickness of the nickel layer can be reduced while good characteristics can be maintained.

Abstract: There are provided core part manufacturing method and apparatus for manufacturing a core part of a rotary electric machine. The core part manufacturing method includes: injecting a molten resin from a side on one end surface of an iron core body into a plurality of space portions provided in the iron core body in a state where the iron core body is sandwiched and pressed. In injecting of the resin, a contact surface on an opposite side to a side where the resin is injected includes: a relief portion that is recessed without contacting to the one end surface; and a remaining portion that is adjacent to a non-contact region. The remaining portion is disposed in the contact surface on an outer peripheral side from the non-contact region, and the relief portion is disposed further in the contact surface on an outer peripheral side from the remaining portion.

Abstract: According to one embodiment, a method for manufacturing an iron core product includes providing an iron core body which includes a magnet insertion hole in which a permanent magnet is disposed, injecting a molten resin into the magnet insertion hole of the iron core body at a first pressure, and setting a pressure applied to the molten resin to a second pressure lower than the first pressure after the molten resin is injected into the magnet insertion hole and before the molten resin is cured.