A metal bend pipe having a bend portion bent in a semi-circular arc shape is provided, in which an identification part that enables one of the two end portions of the bend portion to be identified as the bending-start side or the bending-end side is provided, and the identification part is integrally formed as a protruding and/or recessed three-dimensional region. Thus, it is possible to easily and reliably identify which of the two end portions of the bend portion is the bending-start side or the bending-end side.

A telescopic suspension fork leg (1, 43) is provided, with an inner tube (2) and an outer tube (3) and a damping device (7) and a spring device (5), which is arranged inside a first chamber (5) formed in the inner tube (2) or outer tube (3) and is supported with respect to a second chamber (6) formed by the damping device (7), and the telescopic suspension fork leg (1, 43) is designed to receive a damping fluid, the damping device (7) comprising a piston (9) supported on a piston rod (8) and having an upper and a lower piston surface (10); 11) and the piston (9) is displaceable within a damping tube (13) arranged substantially concentrically to the inner tube (2) and the damping tube (13) is surrounded by an annular chamber (14) arranged substantially concentrically to the damping tube (13) and a gap space (15) is formed between the inner tube (2) and the outer tube (3) and a sliding bush (28) radially surrounding the inner tube (2) is provided and the telescopic suspension fork leg (1, 43) has a sealing device (24) radially surrounding the inner tube (2), which sealing device (24) has at least one sealing means (25) supported on an outer circumferential surface (27) of the inner tube (2), and a receiving chamber (37) for receiving damping fluid is provided between the sealing device (24) and the slide bush (28), wherein the telescopic suspension fork leg (1, 43) has at least one fluid passage (38) between the receiving chamber (37) and a receiving space (39) provided on the telescopic suspension fork leg.

A swage mechanism operable to expand an inner diameter of tubing. The swage mechanism includes a housing defining a longitudinal axis, a plurality of jaws coupled to the housing and movable relative to the longitudinal axis for selectively gripping the tubing, and a ram including a cylindrical portion and a frusto-conical head portion. The frusto-conical head portion of the ram is insertable into the tubing to expand the inner diameter of the tubing.

A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.

A device for expanding and shaping the end 1A of pipes 1, comprising: a head 10C comprising means 11 for connecting the head 10c itself to an expanding element 2 expanding said end 1A of the pipe 1, said expanding element being made of an elastically deformable material, wherein said expanding element 2 comprises a first elongated portion 2D having an outer surface 2A with a maximum diameter D1 which is less than or equal to the internal diameter D2 of the end 1A of the pipe to be expanded and shaped, so that at least said first elongated portion 2D of the expanding element can be introduced into said end 1A of the pipe 1, wherein said expanding element 2 comprises a central through hole 2B arranged coaxially to a longitudinal axis LI of said expanding element 2 delimited by an inner surface 2C, an extracting member 3 comprising an expansion head 3A suitable to move, coaxially to the longitudinal axis L1 of said expanding element 2, from the outside to the inside of said central through hole 2B of the expanding element 2 or the other way round, so as to cause a deformation of said expanding element, or the other way round to allow said expanding element to elastically return to an undeformed state, means (4, 24 25 26) for moving said extracting member 3, wherein: the means 11 for connecting the expanding element 2 to the head 10B of the device are suitable for steadily constraining said expanding element to said head for a plurality of succeeding deformation and shaping operations on the end 1A of a plurality of different pipes 1 and to allow said expanding element 2 to be replaced when said expanding element 2 is worn out, at least said elongated portion 2D of the expanding element 2 is made of an elastically deformable polyurethane plastic material, having: a hardness between 45D and 60D, and an elongation at break between 400% and 600%, and/or a modulus of elasticity, at 300% of deformation, between 30 and 60 MPa.

A joining method for members includes: providing a steel component 10 including insertion holes 14a and 15a, an aluminum pipe 20 having a hollow shape, and a support component 30; inserting the aluminum pipe 20 into the insertion holes 14a and 15a of the steel component 10; and enlarging the aluminum pipe 20 through deformation and joining the aluminum pipe 20 to the steel component 10 by press-fitting. The press-fit joining is performed while at least part of the support component 30 is disposed in a press-fitting region.

A hand held flaring tool for flaring an end of a tube includes a body portion and a handle portion. The body portion receives the tube therein and includes a locking actuator operable to actuate a locking mechanism to secure the tube in the body portion. The body portion includes a flaring actuator operable to actuate a flaring mechanism to flare the end of the tube when the tube is secured in the body portion. The handle portion includes a grip portion that is grasped by a user's hand for supporting the body portion of the flaring tool during a flaring process of the tube. While the user is holding the handle portion to support the hand held flaring tool, the user is able to access and actuate first and second user inputs disposed at and accessible at the handle portion to actuate the locking actuator and flaring actuator.

A pipe enlarging device includes a base, an operation unit and a clamping unit. The clamping unit is received in the base and includes movable front, rear, left and right clamps, multiple resilient members and a front threaded rod. The front, rear, left and right clamps are resiliently movable when the front threaded rod is rotated so as to form an adjustable clamping area between the front, rear, left and right clamps. The clamping area is used to clamp pipes of different sizes. The operation unit includes a top threaded rod with a cone-shaped member which is used to enlarge the inner diameter of the pipes.

A pipe enlarging device includes a base, an operation unit and a clamping unit. The clamping unit is received in the base, and includes movable front and rear clamps and a front threaded rod. The front and rear clamps are resiliently movable when the front threaded rod is rotated so as to form an adjustable clamping area between the front and rear clamps. The clamping area is used to clamp pipes of different sizes. The operation unit includes a top threaded rod with a cone-shaped member which is used to enlarge the inner diameter of the pipes.

Processes and systems for preparing sections of pipeline pipe for machine processing to form pin and box ends for assembly into pipelines using mechanical press-fit pipe joints. The prepared pipe sections are prepared to be fully measured and documented during both manufacturing and assembly. Installed pipelines include pipeline data monitoring systems coupled to a pipeline data management center for receiving, archiving, and analysis of the data records to aid in administration, operation and management, and troubleshooting of pipelines.