A hydraulic tube expander includes expanding jaws engageable with an interior surface of a tube to expand the tube; a source of hydraulic fluid, a valve located between the source and the expanding jaws and a single-action release actuator operatively coupled to the valve. The valve is moveable between open and closed positions. In the closed position, hydraulic fluid can pass from the source to the expanding jaws and in the open position the hydraulic fluid can pass from the expanding jaws to the source. The actuator is movable between first and second positions. In the first position the valve is in the closed position. Movement of the actuator in a direction from the first position toward the second position moves the valve into the open position.

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 pipe end processing device includes a female die and a male die. The female die has a through hole with one side thereof being radially increased, the through hole having the molding surface for forming the protrusion formed on an inner circumference on the one side of the through hole. The male die includes a metal core passed through the through hole of the female die and configured to be axially moved, and a tubular elastic body fitted on one end part of the metal core and protruding from the one side of the female die. The tubular elastic body is configured to be axially compressed by a movement of the metal core to radially expand by deformation thereby to press the surface to be processed of the pipe against the molding surface of the female die.

A metal foil flaring apparatus includes a frame, a flaring mechanism mounted on the frame and having a flaring mouth adapted to open and close, and a first driver mounted on the frame and adapted to drive the flaring mouth to open and close. The flaring mouth has a cone shape gradually contracted toward a front end of the flaring mouth. The front end of the flaring mouth is adapted to be forwardly inserted in a first direction between an inner insulation layer of a cable and a metal foil wrapped around the inner insulation layer when the flaring mouth is closed, flaring the metal foil outwardly into the cone shape.

A mechanical spreader along a spreading axis, characterized in that it comprises a support (1) and two spreading plates (2), each spreading plate (2) comprising at least one bevel (3), and in that it also comprises a central rod (4) able to slide in said support (1) between the two spreading plates (2), said central rod (4) comprising a plurality of bevels (5) having a profile complementary to the bevels (3) of said spreading plates (2), the bevels (5) of said central rod (4) being in contact with the bevels (3) of said spreading plates (2), said spreader also comprising return means able to exert a return force on the spreading plates (2), means for pushing the central rod (4) and means for immobilizing the spreading plates (2) in planes perpendicular to said spreading axis.

An apparatus includes a body, an end effector, a trocar, and an anvil. The anvil head includes an annular surface defining a plurality of staple forming pockets. The plurality of staple forming pockets are configured to deform the plurality of staples when the anvil is in the staple forming position. The shank extends proximally from the annular stapling head. The shank and the anvil head cooperatively define a bore dimensioned to receive a portion of the trocar. The shank defines a lateral opening. The latch member is pivotally coupled with the shank via a living hinge. The latch member comprises a latch shelf configured to selectively couple the anvil with trocar when the trocar is inserted into the bore.

An expansion tool includes a working element configured to expand an end of a tube. The working element includes a plurality of jaws movable between a closed position and an expanded position. The expansion tool also includes first mandrel with a first contact surface and a second mandrel coupled to the first mandrel. The second mandrel has a second contact surface. The first mandrel and the second mandrel are movable together relative to the jaws between a retracted position and an extended position. The first contact surface and the second contact surface are engageable with the jaws to move the jaws from the closed position toward the expanded position in response to movement of the first mandrel and the second mandrel from the retracted position toward the extended position.

An expansion tool includes a housing, a motor supported within the housing, a mandrel, and a drive mechanism configured to convert a rotational input from the motor into translational movement of the mandrel. The drive mechanism includes a cam and a drive shaft coupled to the cam. The expansion tool further includes a frame including a hub and a neck extending from the hub and having an opening. A working element is coupled to the neck and has a plurality of jaws movable from a closed position toward an expanded position in response to movement of the mandrel from a retracted position toward an extended position. The mandrel extends through the opening to engage the jaws, and the drive shaft is rotatably supported by the hub.

The joining method for members according to the present invention includes: providing an aluminum component including an insertion hole provided with a rib in at least part of an edge part, and a hollow steel pipe; inserting the steel pipe into the insertion hole of the aluminum component; and expanding and deforming the steel pipe to join the steel pipe to the aluminum component by press-fitting.

Various methods and systems are provided for an exhaust gas recirculation cooler including a plurality of cooling tubes. In one example, an exhaust gas recirculation (EGR) cooler includes a plurality of cooling tubes positioned within a housing of the EGR cooler, each cooling tube of the plurality of cooling tubes extending between and directly coupled to tube sheets of the EGR cooler at ends of each cooling tube, where at least one end of one or more cooling tubes of a first portion of the plurality of cooling tubes, inward of a tube sheet coupled to the at least one end, includes a compliant region, where the first portion is positioned proximate to an exhaust inlet of the EGR cooler.