Abstract: A structure includes: a first member made of metal having a tubular shape, and having a through-insertion hole; a second member made of resin and joined to the first member; and a third member made of metal having a tubular shape, and inserted through inside the first member. The third member is tube-expanded toward the first member and joined to the first member by press-fitting.

Abstract: The kneading rotor according to one aspect of the present disclosure is a kneading rotor for a kneading machine, comprising a base made of carbon steel or alloy steel for machine structure, a padded layer made of austenitic stainless steel on at least part of a surface of the base and has a hard chromium plated layer on at least part of a surface of the padded layer.

Abstract: An electric vehicle battery case 100 includes: a tray including a placement portion on which a battery is placed and having a groove formed in a bottom portion of the placement portion; a closing plate joined to the tray to close the groove and define a coolant flow path; and a top cover configured to seal the placement portion of the tray.

Abstract: A method for manufacturing an electric vehicle battery case includes: preparing a frame configured to define a through space inside and a flat plate made of resin; superposing and disposing the flat plate on the frame; and applying pressure to the flat plate from an opposite side from the frame to press the flat plate against the frame to cause the flat plate to swell in the through space, thereby deforming the flat plate into a tray having a bathtub shape including a bottom wall and a peripheral wall provided at a peripheral edge of the bottom wall and configured to define an opening portion, and joining by press-fitting the tray to the frame.

Abstract: A method joins members for joining a first member being cylindrical and a second member being plate-shaped and having an opening. This method includes: inserting a first member into an opening of the second member; inserting an elastic body into the first member; guiding an outer diameter side of the first member with a pair of outer dies on both sides of the second member; and compressing an elastic body in the first member with a pair of inner dies. The inner dies compress the elastic body within a range in which the outer dies are positioned.

Abstract: A multi-joint-robot linear-member-shape simulator receives a position of at least one via point via which the linear member extends between a start-point position and an end-point position of the linear member, an initial position of an adjustment via point that adjusts a length of the linear member, and an adjustment parameter of the adjustment via point, and repeatedly executes shape control for determining the shape of the linear member and a length adjustment for determining the length of the linear member when the linear member has the determined shape by using the input position of the via point and the input initial position of the adjustment via point as an initial value until a difference between an actual length of the linear member and the determined length thereof becomes smaller than or equal to a permissible value. When the shape control is to be executed, the adjustment parameter is changed.

Abstract: A wire for gas-shielded arc welding includes, based on a total mass of the wire C: 0.01 mass % or more and 0.10 mass % or less, Si: 0.05 mass % or more and 0.55 mass % or less, Mn: 1.60 mass % or more and 2.40 mass % or less, Ti: 0.05 mass % or more and 0.25 mass % or less, Cu: 0.30 mass % or less, Al: 0.10 mass % or less, P: 0.025 mass % or less, and S: 0.010 mass % or less with the remainder being Fe and inevitable impurities. In addition, the following relationship is satisfied: 0.1?[Ti]/[Si]?3.0, where [Si] is the content of Si (mass %) based on the total mass of the wire and [Ti] is the content of Ti (mass %) based on the total mass of the wire.

Abstract: The interaction system that causes an interaction between a first fluid and a second fluid includes a plurality of processing units configured so as to cause the second fluid separated in the separation container of each of the plurality of processing units to flow into the processing channel of the interaction unit of a processing unit that is next in flow order to the each of the plurality of processing units, the separation container of the each of the plurality of processing units is connected to the processing channel of the interaction unit of the processing unit that is next in the flow order, a first fluid feeding path that leads the first fluid separated in the separation container of a succeeding stage processing unit among the plurality of processing units from the separation container to the processing channel of the interaction unit of a preceding stage processing unit, a storage container that stores the first fluid led out from the separation container of the succeeding stage processing unit to

Abstract: An automatic welding system, an automatic welding method, a welding assistance device, and a program wherein the amount of correction of the welding speed is determined on the basis of the distance between an arc and the tip of a molten pool when the distance between the arc and the tip of the molten pool is within a predetermined range in arc welding performed while alternately weaving a welding torch in the front downward direction and the rear upward direction when the welding progress direction is the frontward direction with respect to a horizontally extending groove formed between two members to be welded aligned in the vertical direction.

Abstract: A compressor unit includes: a reciprocating compressor main body having a drive portion and a compression portion driven by the drive portion to compress a hydrogen gas; an electric motor that is a power source of the drive portion; a hydrogen supply flow path which is connected to a suction side flow path and to the compressor main body and through which a hydrogen gas flows; a fuel cell module that is disposed in the hydrogen station, generates electric power using a hydrogen gas guided through the hydrogen supply flow path, and supplies the generated electric power to the electric motor; and an inverter that adjusts a rotation speed of the electric motor.

Abstract: In this welding control method for a portable welding robot that moves along a guide rail, for using the portable welding robot to weld a workpiece including a groove: a groove shape detection position is established in at least one location in a welding sector extending from a welding starting point to a welding end point; the groove shape at a groove shape detection position Pn is sensed by means of a detecting means of the portable welding robot, which is moving along the guide rail; groove shape information is calculated from detection data obtained by the sensing; and a welding condition is acquired on the basis of the groove shape information.

Abstract: A joining method for overlapping and joining a plate-shaped portion of a first metal member and a plate-shaped portion of a second metal member, where the first metal member and the second metal member are made of dissimilar materials, includes a first step of forming an insertion hole in each of the plate-shaped portion of the first metal member and the plate-shaped portion of the second metal member, where the insertion holes communicate with each other when the plate-shaped portions of the first metal member and the second metal member are overlapped with each other, a second step of disposing a first joining member made of a metal material on a side of the plate-shaped portion of the first metal member opposite to the second metal member, a third step of inserting a second joining member made of the same metal material as that of the first joining member into the first metal member from a side of the second metal member through the insertion holes while the plate-shaped portions of the first metal member

Abstract: A low-strength steel sheet for hot stamping according to an aspect of the present invention satisfies a predetermined chemical composition, the Ac3 point (° C.) represented by Equation (1) is 890° C. or more, and an area ratio of ferrite at a depth to be ¼ of a steel sheet thickness is 80% or more. Ac3 point (° C.)=910?203×[C]1/2+44.7×[Si]?30×[Mn]+700×[P]+400×[Al]+400×[Ti] . . . (1) In Equation (1), [C], [Si], [Mn], [P], [Al], and [Ti] are values denoting the percentage contents of C, Si, Mn, P, Al, and Ti in terms of % by mass, respectively.

Abstract: A structural member is elongated in a longitudinal direction, and includes a first member made of a steel plate and a second member made of a steel plate, the first member and the second member being joined. In the structural member, a closed cross-sectional shape is formed by the first member and the second member in a cross section perpendicular to the longitudinal direction. The first member has a tensile strength of equal to or greater than 980 MPa, and includes a first hemming process part subjected to hemming bending at both end parts in a width direction orthogonal to the longitudinal direction. The second member has a tensile strength of equal to or greater than 980 MPa, and includes a second bonded part held in the first hemming process part at both end parts in the width direction and bonded to the first hemming process part by an adhesive.

Abstract: A method for manufacturing a battery case for electric vehicle includes: preparing a frame, and a blank material formed in a flat plate shape; disposing the frame and the blank material to stack the blank material on the frame; and pressurizing the blank material to press the blank material against the frame, so as to mold the blank material into a bathtub shape and joining the blank material to the frame by press-fitting.

Abstract: A recoater of an additive manufacturing apparatus includes a powder retention section that defines a retention space in which a powder material is retained, and a slit part that has a slit inlet that receives the powder material retained and a slit outlet through which the powder material is discharged. The slit part includes a plate member fixed to the powder retention section by surface contact. A pair of slit inner wall surfaces that is connected to the slit outlet and faces each other is formed within a plate thickness of the plate member.

Abstract: A joined body includes a tubular first member, and a second member including a plate-shaped wall portion in which a through-hole is formed, the first member being inserted into the through-hole. The collar member is interposed between the first member and the second member in at least a part of the hole peripheral wall of the through-hole. The first member and the second member are joined by expanding the first member at a portion corresponding to the through-hole.

Abstract: A method for manufacturing a dissimilar metal joint product including joining a first member made of non-ferrous metal and having an end surface and a first surface adjacent to the end surface and a second member made of steel, the method includes: spraying a metal powder capable of being joined to the second member to the end surface and the first surface of the first member at a low temperature and at a high speed to form a coating to extend over the end surface and the first surface; disposing the first member and the second member such that the coating and the second member are close to or contact with each other; and performing fillet welding between the coating and the second member.

Abstract: A building time for building an additively-manufactured object is calculated on the basis of the inter-pass time and the welding pass time and is compared with a preset upper limit value, and welding conditions in a depositing plan are repeatedly modified until the building time is equal to or less than the upper limit value. Alternatively, corrections are repeatedly performed until the shape difference between a building shape of built-up object shape data relating to the additively-manufactured object created on the basis of the inter-pass time and the inter-pass temperature, and a building shape of three-dimensional shape data, is smaller than a near net value.

Abstract: A vehicle body structure includes: a battery disposed at a vehicle body central lower portion, i.e., at a central lower portion of the vehicle body; a side sill of a hollow shape, the side sill disposed at an outer side of the battery in a vehicle width direction and extending in a vehicle longitudinal direction; a reinforcement member disposed inside the side sill, having a closed cross section of a polygonal shape, and having a continuous cylindrical structure where a plurality of the closed cross sections are continuous when viewed in the vehicle width direction; and a deformation control member attached to the reinforcement member and configured to control a deformation of the continuous cylindrical structure of the reinforcement member in the vehicle longitudinal direction.