Abstract: Provided is a hard coating film having excellent sand abrasion resistance. The present invention relates to a hard coating film (20) including a nitride containing Al and Cr as main components, the hard coating film (20) having a thickness of 6 ?m or more.

Abstract: A welding system configured to weld a workpiece by using a welding device and a positioner includes a control device configured to control the welding device and the positioner. The positioner includes a workpiece position setting mechanism having reference position information, and at least one holding mechanism configured to hold the workpiece. The control device includes a positioner position calculation means for calculating a position of the holding mechanism when holding the workpiece based on the reference position information provided from the workpiece position setting mechanism and workpiece information inputted into the control device in advance.

Abstract: A collision prediction method for predicting a collision between a multi-joint robot and a nearby object includes a first acquisition step of acquiring configuration information of the robot and posture information of the robot; a second acquisition step of acquiring point cloud data including the robot and the nearby object; a classification step of classifying the point cloud data acquired in the second acquisition step into point cloud data corresponding to the robot and point cloud data corresponding to the nearby object, based on the configuration information of the robot and the posture information of the robot; and a prediction step of predicting a collision between the robot and the nearby object, based on a classification result obtained in the classification step.

Abstract: This spot welding method for an aluminum material comprises: a processing step in which, in a plan view, a circular emboss expanded in a direction of superposition on a second aluminum plate side is formed at a position-to-be-welded of a first aluminum plate; an arrangement step in which positions-to-be-welded are superimposed while the expansion side of the emboss faces the second aluminum plate, and the positions-to-be-welded are arranged between a pair of electrodes; a pressing step in which the superimposed aluminum plates are pinched between the electrodes, and a central side excluding a peripheral edge of the emboss is pressed; and an electrification step of performing pressing and electrification. An electrode having a tip diameter larger than the diameter of a root part of the expansion part of the emboss is used.

Abstract: A bearing abnormality detection device and a bearing abnormality detection method in the present invention include: obtaining a frequency spectrum of vibration data of a vibration in a rolling bearing; detecting, from the obtained frequency spectrum, a peak frequency within a predetermined frequency range including a theoretical frequency showing a peak on the frequency spectrum in an occurrence of an abnormality; and determining whether an abnormality is present on the basis of a chronological frequency change amount that is a difference between a preset reference frequency being a reference of the peak frequency and the detected peak frequency.

Abstract: Reduced workload on a user can be achieved when a sensing-related teaching program is to be generated. A method for generating a teaching program that defines sensing operation includes a setting step for setting a sensing position at a surface of a workpiece, and a generating step for generating a teaching program of the sensing operation based on the sensing position set in the setting step. The sensing position is set within a range in which a maximum permissible amount for an error of the workpiece and a permissible range preliminarily defined with respect to a direction of the error are included in the surface.

Abstract: A learning device includes: a data acquisition unit configured to acquire information on a welding condition when beads are deposited, a dimension related to a narrow portion forming a valley portion in a surface shape of an additively manufactured object before the beads are deposited, a positional relation between the narrow portion and a target position of the bead, and a defect size of an unwelded defect; and a learning unit configured to generate the estimation model by learning a relation between the welding condition, the dimension related to the narrow portion and the positional relation, and the defect size. The dimension related to the narrow portion includes at least one of a bottom width, an opening width representing an interval between top portions on both sides, both sides, and a valley depth from the top portion to a bottom of the valley portion.

Abstract: A first member provided with a hole, a second member having a tubular shape, and a composite elastic body obtained by combining at least two types of elastic bodies having different hardness are prepared, the second member is inserted into the hole of the first member, the composite elastic body is inserted into the second member, and the composite elastic body is pressed to cause the second member to bulge out, thereby joining the first member and the second member by press-fitting.

Abstract: A method for producing a frame structure contains a hollow member having a curved and long shape, and a plurality of connecting members welded to the hollow member along a longitudinal direction of the hollow member. Each of the connecting members is welded to the hollow member, and a cooling medium is introduced into the inside of the hollow member through an end of the hollow member after the welding. The welding and the introducing are conducted repeatedly in the number of the connecting members.

Abstract: A welding torch includes a torch barrel to which a tip body is attached, and an external cylinder. The torch barrel has outer and inner barrel cylinders. An outer peripheral surface of the inner barrel cylinder is provided with coolant supply and recovery channels. The inner barrel cylinder has an inner-cylinder exposure section. A base end of an outer peripheral surface of the inner-cylinder exposure section is provided with supply and recovery openings. An axial distal end of the inner-cylinder exposure section is provided with a connection section that is connected to the tip body such that the tip body covers an outer periphery of the inner-cylinder exposure section. At least the connection section and the supply and recovery openings are disposed within the external cylinder. A seal section hermetically seals between the external cylinder and the tip body and between the external cylinder and the outer barrel cylinder.

Abstract: A work measuring method for measuring a work including a columnar member and a diaphragm and held by a positioner includes an acquiring step of acquiring point cloud data on a surface of the work held by the positioner and photographed in a predetermined direction, a detecting step of identifying a portion where distribution of the point cloud data changes in a three-dimensional coordinate system of the positioner and detecting the portion as a boundary position between the columnar member and the diaphragm, and a deriving step of deriving the number of columnar members and diaphragms included in the work on the basis of the boundary position detected in the detecting step.

Abstract: A reward for a decision result of an isostatic pressurization processing condition is calculated based on a state variable including at least one physical quantity related to a workpiece and at least one isostatic pressurization processing condition, a function for deciding at least one isostatic pressurization processing condition from the state variable is updated based on the reward, and updating of the function is repeated to decide an isostatic pressurization processing condition that maximizes the reward. The isostatic pressurization processing condition is at least one of a first parameter related to the workpiece, a second parameter related to a pre-process of the isostatic pressurization processing, and a third parameter related to an operating condition of an isostatic pressurization device, and the at least one physical quantity is at least one of physical quantities related to densification and green compaction of the workpiece.

Abstract: Provided are a method and a device for producing a frame structure, in which influences of both a thermal distortion due to welding and a decrease in the accuracy of the frame member itself are eliminated and high geometrical accuracy is obtained. The method for producing a frame structure includes supporting both ends of a long frame member, temporarily fixing a connecting member to somewhere along a longitudinal direction of the frame member, and final-welding the connecting member to the frame member while keeping the frame member in an elastically deformed state by imposing a bending load on an intermediate portion along the longitudinal direction of the frame member.

Abstract: Provided is a concrete reinforcing composite material that is impregnated with a thermoplastic resin having excellent alkali resistance and handleability. In a concrete reinforcing composite material 10, a core material 12 is formed from a fiber bundle of reinforcing fibers. The core material 12 is covered with a coating layer 14 made of a thermoplastic resin. The core material 12 is impregnated with the thermoplastic resin. The thickness of the coating layer 14 is 84 ?m or more. The fiber volume content Vf of the core material 12 is 60% or more.

Abstract: A semi-hard magnetic steel component including C: 0.60% by mass or more and 1.50% by mass or less, Si: more than 0% by mass and 0.75% by mass or less, Mn: more than 0% by mass and 1.00% by mass or less, P: more than 0% by mass and 0.050% by mass or less, S: more than 0% by mass and 0.050% by mass or less, Cu: more than 0% by mass and 0.30% by mass or less, Ni: more than 0% by mass and 0.30% by mass or less, Mo: more than 0% by mass and less than 0.30% by mass, Cr: 0.85% by mass or more and 2.00% by mass or less, Al: more than 0% by mass and 0.100% by mass or less, and N: more than 0% by mass and 0.0100% by mass or less, the balance being iron and inevitable impurities, wherein 80% by area or more of a tempered martensite phase is included, a half width of an X-ray diffraction peak from a (211) plane is 3.1° or less, an area ratio of carbides is 4.00% or more, and a Vickers hardness is 470 or less.

Abstract: A relationship between an average current (IP-AVE) of a current non-suppression period (TIP) and an average current (IB-AVE) of a current suppression period (TIB) is set as 0.65?IP-AVE/(IP-AVE+IB-AVE)?0.90, a relationship between any current non-suppression period (TIP) and the current suppression period (TIB) immediately after is set as 0.30?TIB/(TIP+TIB)?0.60, a relationship between a forward feeding period (TP) and a reverse feeding period (TN) is set as 0.40?TN/(TP+TN)?0.70, a relationship between the current non-suppression period (TIP), the current suppression period (TIB), the forward feeding period (TP), and the reverse feeding period (TN) is set as {TN/(TP+TN)}>{TIB/(TIP+TIB)}, and the current non-suppression period (TIP) is controlled to account for ? or more of the forward feeding period (TP).

Abstract: An optical system for a shape measuring device of the present invention includes a parallel light irradiation system and an imaging optical system, in which the parallel light irradiation system includes a point light source, a collimator lens, and a telecentric lens having a both side or object side telecentric structure to be irradiated with light from the collimator lens through an object to be measured, the imaging optical system includes an image sensor onto which an image of a portion of the object to be measured, the image by light passing through the telecentric lens is projected, and the point light source includes an LED, a diffusion member that diffuses and emits light from the LED; and a pinhole member having a pinhole into which light from the diffusion member is incident.

Abstract: An additive manufacturing method is provided for producing a manufactured object by depositing weld beads formed by melting and solidifying a filler metal, the method including repeating the following three steps in the following order: forming a bead layer in which the weld beads are arranged, identifying a region where an impurity is generated on a surface of the formed bead layer, and estimating a thickness of the impurity in the identified region. The method further includes selectively removing the impurity from the surface after the estimating based on the estimated thickness of the impurity.

Abstract: A building includes at least one structural member. The structural member includes a light-receiving surface that is formed by extrusion or casting of a metal and is irradiated with sunlight, a structural member main body in which a hollow portion extending from a first end portion toward a second end portion is formed, a pair of lid portions that are respectively disposed at the first end portion and the second end portion, and close the hollow portion, an inlet that is provided in any one of the pair of lid portions and through which a heating medium flows into the hollow portion, and an outlet that is provided in any one of the pair of lid portions and through which the heating medium flows out from the hollow portion.

Abstract: A welding control method for welding to form a molten pool, the method including: an acquisition step for acquiring image data including the molten pool; an identifying step for identifying, on the basis of the acquired image data, a plurality of feature points near a boundary between the molten pool and an unmolten portion at least on the side in the direction of welding progress; a calculating step for calculating geometric quantity data on the basis of information about the plurality of feature points; a determining step for determining whether a weld is appropriate or inappropriate on the basis of the geometric quantity data and a predetermined threshold value; and a correcting step for correcting the welding conditions on the basis of a result of the determination in the determining step.