Abstract: The invention provides: a metallic coating composition and a method for forming the coating film. The metallic coating composition includes: a binder component containing a phosphate group-containing acrylic resin (A), a polyisocyanate compound (B), and a cellulose resin (C); and a vapor-deposition aluminum pigment (D), wherein the vapor-deposition aluminum pigment (D) is present in an amount of 10 to 95 parts by mass per 100 parts by mass of the total solids content of the binder component, and wherein the phosphate group-containing acrylic resin (A) is a copolymer resin of a monomer mixture consisting of 3 to 48 mass % of a phosphate group-containing polymerizable unsaturated monomer (a1), 6 to 45 mass % of a hydroxy-containing polymerizable unsaturated monomer (a2), and 10 to 91 mass % of other polymerizable unsaturated monomer (a3), based on the total amount of all of the monomers.

Abstract: A laser medium unit 10 in a laser beam amplification device includes a plurality of laser media 14. A cooling medium flow path F1 is provided around the laser medium unit 10 to cool the laser medium unit 10 from outside. A sealed space between the laser media 14 is filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.

Abstract: A matte clear coating composition for an aluminum member, comprising acrylic resin (A) having a hydroxy value of 100 to 200 mgKOH/g; melamine resin (B); silica particles (C) having an average particle size of 1.0 to 15 ?m; and polyolefin wax (D) having an average particle size of 10 to 40 ?m and a melting point of 145° C. to 180° C., the matte clear coating composition comprising 5 to 20 mass % of silica particles (C) and 3 to 15 mass % of polyolefin wax (D) based on the total solids content of acrylic resin (A) and melamine resin (B). The matte clear coating composition for an aluminum member satisfies both corrosion resistance and abrasion resistance (scratch resistance).

Abstract: When a processor of a print device determines that an elapsed time since a circulation operation of a liquid is not less than a fixed time and does not determine that the elapsed time is not less than a first time, the processor performs a first circulation operation that circulates the liquid in a state in which a supply flow path and a circulation flow path are not open to the atmosphere. When the processor determines that the elapsed time is not less than the fixed time, is not less than the first time, and is less than a second time, the processor performs a second circulation operation that agitates the liquid more than the first circulation operation does. Therefore, the print device is able to agitate the liquid in accordance with the time that has elapsed since the circulation operation was last performed.

Abstract: A laser medium unit 10 in a laser beam amplification device includes a plurality of laser media 14. A cooling medium flow path F1 is provided around the laser medium unit 10 to cool the laser medium unit 10 from outside. A sealed space between the laser media 14 is filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.

Abstract: The laser amplification apparatus is provided with a plurality of plate-shaped laser medium components (M1 to M4) which are disposed to be aligned along a thickness direction, and prisms (P1 to P3) which optically couples the laser medium components. Each of the laser medium components is provided with a main surface to which a seed light is incident, and a side surface which surrounds the main surface. An excitation light is incident from at least one side surface of a specific laser medium component among the plurality of laser medium components. The excitation light is incident through the prism to a side surface of the laser medium component adjacent to the prism.

Abstract: In a bobbin tool including a first shoulder surface which comes into contact with a front surface of a subject work piece, a second shoulder surface which is disposed so as to face the first shoulder surface and comes into contact with a rear surface of the work piece, and a shaft portion which connects the first shoulder surface and the second shoulder surface to each other with a gap therebetween fixed, the first shoulder surface and the second shoulder surface are provided with a first vortex groove and a second vortex groove which extend toward the front side of a tool rotation direction so as to be opened to the outer peripheral edge as it moves to the outer peripheral side.

Abstract: A friction stir welding device (1) includes a workpiece disposition unit (2) at which workpieces (W) is disposed, a main body section (3) disposed at a surface (W4) of the workpieces (W) disposed at the workpiece disposition unit (2), a tool holding unit (4) formed in the main body section (3) to enable advance and retreat in a direction facing the workpieces (Z), which is a direction approaching and separating from the workpieces (W) disposed at the workpiece disposition unit (2), and configured to hold a tool (100), and a support medium (5) formed to satisfy a predetermined relative positional relationship in the direction facing the workpieces (Z) with respect to a first shoulder surface of the tool (100) attached to the tool holding unit (4) and configured to support the tool holding unit (4) on the surface (W4) of the workpieces (W) disposed at the workpieces disposition unit (2).

Abstract: A method includes the following: an incidence step in which ultrasonic waves from an insertion side and the side opposite thereto of a tool are caused to be incident on a joint part when a workpiece is joined by the tool that has a probe and a shoulder which supports the probe and that is for friction stir welding; an image acquisition step for obtaining an ultrasonic wave transmission image of the joint part using the ultrasonic waves; and a determination step for determining that the joint part has been joined if width-dimensions of the joint part obtained from the ultrasonic wave transmission image are equivalent to at least the outer diameter d of the probe and if no defect of a prescribed size or greater is found in a range equivalent to the outer diameter D of the shoulder or less in the ultrasonic wave transmission image.

Abstract: A plastic working method for a magnesium alloy, wherein the magnesium alloy is subjected to a friction stir process whereby a probe at the tip portion of a tool rotating around an axial line is press-fitted to the surface of the magnesium alloy, the magnesium alloy is heated and softened by friction between the magnesium alloy and the rotating tool, and the tool is moved parallel to the surface of the magnesium alloy while the tool is rotated with the probe in the press-fitted state. When the length in a first direction of the region of the magnesium alloy being plastically worked is A, and the amount of shrinkage of the magnesium alloy in the first direction due to the friction stir process is ?, A+? is set as the length in the first direction of the region subjected to the friction stir process.

Abstract: A friction stir welding tool includes: a first face which is rotated about an axis relative to a joined portion in a state in which the first face comes into contact with the joined portion of a workpiece and in which an arithmetic mean roughness Ra value is greater than or equal to 0.8 ?m and less than or equal to 25 ?m; and a second face which is formed to continue to the first face, which is rotated about the axis relative to the joined portion in a state in which the second face comes into contact with the joined portion, and in which an arithmetic mean roughness Ra value is smaller than that of the first face.

Abstract: An end tab is arranged to abut against an end surface of a workpiece joined by friction stir welding and is formed with a cutout portion of which a distal end side is positioned on an extension line of a joining line in the workpiece. Also, a production method includes joining the workpiece using the end tab to produce a joint material.

Abstract: A first storage unit stores a main component table holding design information of products. A second storage unit stores a sub-component table holding the design information of the products and an update deadline of the design information for each predetermined unit constituted by products manufactured on the basis of the same design information. A first determination unit determines whether or not the main component table has been changed. A second determination unit determines whether or not a present date is before the update deadline. The second determination unit reflects contents of the change performed on the main component table on the sub-component table in a case where the main component table has been changed and the present date is before the update deadline.

Abstract: When a processor of a print device determines that an elapsed time since a circulation operation of a liquid is not less than a fixed time and does not determine that the elapsed time is not less than a first time, the processor performs a first circulation operation that circulates the liquid in a state in which a supply flow path and a circulation flow path are not open to the atmosphere. When the processor determines that the elapsed time is not less than the fixed time, is not less than the first time, and is less than a second time, the processor performs a second circulation operation that agitates the liquid more than the first circulation operation does. Therefore, the print device is able to agitate the liquid in accordance with the time that has elapsed since the circulation operation was last performed.

Abstract: The invention provides: a metallic coating composition and a method for forming the coating film. The metallic coating composition includes: a binder component containing a phosphate group-containing acrylic resin (A), a polyisocyanate compound (B), and a cellulose resin (C); and a vapor-deposition aluminum pigment (D), wherein the vapor-deposition aluminum pigment (D) is present in an amount of 10 to 95 parts by mass per 100 parts by mass of the total solids content of the binder component, and wherein the phosphate group-containing acrylic resin (A) is a copolymer resin of a monomer mixture consisting of 3 to 48 mass % of a phosphate group-containing polymerizable unsaturated monomer (a1), 6 to 45 mass % of a hydroxy-containing polymerizable unsaturated monomer (a2), and 10 to 91 mass % of other polymerizable unsaturated monomer (a3), based on the total amount of all of the monomers.

Abstract: A friction-stir welding tool includes a front shoulder; a rear shoulder in contact with plate materials; and a probe penetrating the plate materials between the front and rear shoulders, the probe connecting the front shoulder and the rear shoulder to each other. The probe has a first screw part provided on at least one axial end section, and at least one of the front shoulder and the rear shoulder has a second screw part in threaded engagement with the first screw part, the threaded engagement changing so that the rear shoulder and the front shoulder approach each other along the axial direction as the front shoulder and the rear shoulder rotate relative to each other, and the threaded engagement with the first screw part linking at least one of the rear shoulder and the front shoulder with the probe.

Abstract: A print device includes a mount portion, a lead-out needle, a head, liquid passages, a branch portion, and first resistance portions. The lead-out needle is provided on the mount portion and connected to a storage portion such that the liquid can be led out from the storage portion when the storage portion is mounted on the mount portion. The head has ejection areas capable of ejecting the liquid. Each of the liquid passages is connected to a corresponding one of the ejection areas and feeds the liquid from the storage portion. The branch portion causes the liquid led out from the lead-out needle to branch into each of the liquid passages. Each of the first resistance portions located between the branch portion and the head is provided corresponding to one of the liquid passages and generates a larger flow resistance than the lead-out needle.

Abstract: A print device includes a mount portion, a lead-out needle, a head, liquid passages, a branch portion, and first resistance portions. The lead-out needle is provided on the mount portion and connected to a storage portion such that the liquid can be led out from the storage portion when the storage portion is mounted on the mount portion. The head has ejection areas capable of ejecting the liquid. Each of the liquid passages is connected to a corresponding one of the ejection areas and feeds the liquid from the storage portion. The branch portion causes the liquid led out from the lead-out needle to branch into each of the liquid passages. Each of the first resistance portions located between the branch portion and the head is provided corresponding to one of the liquid passages and generates a larger flow resistance than the lead-out needle.

Abstract: Provided is an anesthetic solution-filled cartridge-type electric dental syringe, wherein the plunger has been shortened but the plunger can nevertheless be extended to the distance necessary to evacuate the anesthetic solution from the cartridge. The syringe comprises: an extension tube into which a plunger is movably inserted, the extension tube being movably disposed in the through hole of a support block and having racks formed in the side surface thereof that are coordinated with the racks of the plunger; and a means for the plunger to draw the extension tube to engage the racks of the extension tube with a pinion when the plunger reaches the middle of the distance corresponding to the anesthetic solution accommodation length of the cartridge. By the engagement of the racks of the extension tube with the pinion, the plunger moves together with the extension tube for the remainder of the distance corresponding to the anesthetic solution accommodation length of the cartridge.

Abstract: In a friction stir welding method, a pair of plate materials is arranged opposing one another such that the ends thereof are butted together, after which friction stir welding is performed. A first shoulder is arranged at one surface of the pair of plate materials and a second shoulder is arranged at the other surface of the plate materials to sandwich therebetween a joint to be formed by friction stirring of the end parts of the plate materials, and the first shoulder and the second shoulder are rotated, thereby friction stirring the joint of the pair of plate materials. As the joint is friction stirred, the first shoulder and the second shoulder are moved from the other surface toward the one surface of the plate materials, thereby forming at the joint a protruding part protruding from the one surface of the plate materials as the friction stir welding is performed.