Abstract: A welding method includes overlapping a thin metal plate with a base material, and setting an annular welding schedule line on a welding schedule portion of the thin metal plate; forming a welding line such that a continuous irradiation with a laser light from a fiber laser is performed while moving the laser light along the welding schedule line, and while vibrating the laser light across the welding schedule line; and setting a length of the welding line such that an entire inside of the welding schedule line is welded.

Abstract: An ultrasonic bonding jig includes: a base; and a protrusion portion which has a protrusion portion end surface approximately parallel to the base and which has a pair of first walls, the pair of first walls being disposed upright approximately perpendicular to the base from opposed sides of the protrusion portion end surface. A bonding structure includes a bonding portion of a metal plate and a base material. The bonding portion has a recessed portion with a closed bottom on a surface of the metal plate, and the recessed portion has a pair of walls approximately perpendicular to the surface of the metal plate.

Abstract: In an exemplary welding method for joining at least a first member and a second member made of metals by fiber laser welding, the fiber laser welding forms welding lines 16, 19 by sequentially irradiating a laser light L while moving along annular scheduled welding lines 13, 18 and vibrating across the scheduled welding lines 13, 18, whereby the resultant metal joining structure secures a welding area of the metal members and has high strength and durability.

Abstract: An ultrasonic bonding jig includes: a plurality of protrusions; and a planar portion among protrusions formed among base ends of the protrusions. The protrusions have side surfaces of tapered surfaces, the side surfaces being positioned in a vibration direction. At the tapered surfaces, an inclination of a tangent at distal ends of the protrusions, with respect to the vibration direction, is larger than an inclination of a tangent at the base ends of the protrusions, with respect to the vibration direction.

Abstract: An ultrasonic bonding jig includes: a plurality of protrusions; a planar portion among protrusions formed among base ends of the protrusions; and recessed portions recessed to a side opposite to a projection direction of the protrusions, the recessed portions being formed on both sides in a vibration direction of the protrusions.

Abstract: An ultrasonic bonding jig includes: a plurality of protrusions; a planar portion among protrusions formed among base ends of the protrusions; and recessed portions recessed to a side opposite to a projection direction of the protrusions, the recessed portions being formed on both sides in a vibration direction of the protrusions.

Abstract: An ultrasonic bonding jig includes: a plurality of protrusions; and a planar portion among protrusions formed among base ends of the protrusions. The protrusions have side surfaces of tapered surfaces, the side surfaces being positioned in a vibration direction. At the tapered surfaces, an inclination of a tangent at distal ends of the protrusions, with respect to the vibration direction, is larger than an inclination of a tangent at the base ends of the protrusions, with respect to the vibration direction.

Abstract: An ultrasonic bonding jig includes: a base; and a protrusion portion which has a protrusion portion end surface approximately parallel to the base and which has a pair of first walls, the pair of first walls being disposed upright approximately perpendicular to the base from opposed sides of the protrusion portion end surface. A bonding structure includes a bonding portion of a metal plate and a base material. The bonding portion has a recessed portion with a closed bottom on a surface of the metal plate, and the recessed portion has a pair of walls approximately perpendicular to the surface of the metal plate.

Abstract: An ultrasonic bonding method includes: stacking a metal plate and a base material; pressing the metal plate to the base material by an ultrasonic bonding jig; forming a plurality of recessed portions, a flat portion among recessed portions, and an annular flat portion on the metal plate by the ultrasonic bonding jig, the flat portion among recessed portions being disposed among the plurality of recessed portions, the annular flat portion surrounding the plurality of recessed portions; and vibrating the ultrasonic bonding jig while the ultrasonic bonding jig presses the metal plate.

Abstract: A welding method includes overlapping a thin metal plate with a base material, and setting an annular welding schedule line on a welding schedule portion of the thin metal plate; forming a welding line such that a continuous irradiation with a laser light from a fiber laser is performed while moving the laser light along the welding schedule line, and while vibrating the laser light across the welding schedule line; and setting a length of the welding line such that an entire inside of the welding schedule line is welded.

Abstract: A capsule having a cylindrical shell for containing goods to be transported, and a cover member adaped to be fitted over one end of the shell. The cover member is made from a flexible material and is provided on the leading end of the shell. The provision of the cover member of a flexible material avoids damage to or deformation of the capsule which would otherwise be caused by collision against the preceding or the next following capsule, and reduces the resistance offered to the movement of the capsule by the tubular passageway through which the capsule is moved.