Tube flaring tool comprising a tube receiving region comprising first and second gripping dies retractable with respect to each other and positionable to cooperatively define an opening for receiving a tube; a first clutch shaft; a support housing having a bore for receiving a second clutch shaft; a clutch plate; a flare forming head operable to flare the free end of the tube; and a biasing member urging the flare forming head axially. The first clutch shaft may have an outer configuration adapted to be engaged by a 12 point or ⅜″ square drive SAE ratchet wrench for creating mechanical advantage to actuate the flare forming head. When the force that the biasing member urges the flare forming head axially is overcome, the clutch plate disengages from the second clutch shaft such that further actuation of the first clutch shaft does not rotate the flare forming head shaft, preventing over-flaring.

A pipe coupling for connecting a pipe and including a pipe, a pipe union, and a clamping element. The pipe exhibits at least one connecting section and a terminal abutting face. The connecting section is formed in an end region of the pipe, wherein the connecting section exhibits at least one sealing surface inclined relative to a longitudinal axis of the pipe. The pipe union including a receiving section for insertion of at least a part of the connecting section, wherein a sealing connection between the pipe and the pipe union is created, in that the connecting section is clamped between the pipe union and the clamping element. The abutting face has a sealing protrusion and the sealing protrusion is formed as a prominence in the abutting face. Furthermore, a pipe, a swaging tool and a process are also provided.

A pipe coupling for connecting a pipe and including a pipe, a pipe union, and a clamping element. The pipe exhibits at least one connecting section and a terminal abutting face. The connecting section is formed in an end region of the pipe, wherein the connecting section exhibits at least one sealing surface inclined relative to a longitudinal axis of the pipe. The pipe union including a receiving section for insertion of at least a part of the connecting section, wherein a sealing connection between the pipe and the pipe union is created, in that the connecting section is clamped between the pipe union and the clamping element. The abutting face has a sealing protrusion and the sealing protrusion is formed as a prominence in the abutting face. Furthermore, a pipe, a swaging tool and a process are also provided.

An electric pipe expander and intelligent control circuit for the electric pipe expander are provided. The electric pipe expander includes a pipe expander body and a mandrel sliding cavity disposed on the pipe expander body. A chuck body capable of clamping a pipe to be processed is disposed at an opening end of the mandrel sliding cavity. A mandrel is slidingly connected in the mandrel sliding cavity, an outer side end of the mandrel is provided with an obliquely disposed pipe expanding cone, an inner side end of the mandrel is provided with an elastic body accommodating cavity. Flat keys are disposed on the mandrel, and an elastic body is clamped and disposed between the flat keys and a bottom surface of the elastic body accommodating cavity.

A multi-axis roll-forming system for forming a stepped diameter in a cylinder includes a support that spins about a rotation axis while supporting a workpiece that includes the cylinder. A first actuator translates a first roller perpendicularly to the rotation axis. A second actuator moves a multi-axis roller radially outward, relative to the rotation axis, and upward along the rotation axis. The system may also include a first roller arm to which the multi-axis roller is coupled. The first roller arm is connected to a pivot joint having a pivot axis that is perpendicular to the rotation axis. The second actuator may include a linear-drive actuator that is coupled to the first roller arm and extends along the rotation axis to force the multi-axis roller to pivot about the pivot axis.

Machine for working tubes, in particular a hairpin bender machine for simultaneously working a plurality of tubes intended, in particular, to make heat exchangers, said machine comprising a device (14) for feeding and moving tubes to be worked, a unit (16) for bending said tubes, a cutting member (18) configured to cut said plurality of tubes.

An expansion tool includes a housing, a collar rotatably coupled to the housing, a plurality of jaws coupled for co-rotation with the collar, a mandrel movable relative to the housing between a retracted position and an extended position to expand the jaws, and a drive mechanism including a rotatable cam. Rotation of the cam moves the mandrel between the retracted position and the extended position. The expansion tool further includes an indexing gear configured to incrementally receive torque from the drive mechanism such that continuous rotation of the drive mechanism incrementally rotates the indexing gear, and a clutch assembly including a clutch gear meshed with the indexing gear, a clutch cover surrounding the clutch gear, and a plurality of rolling elements disposed between the clutch gear and the clutch cover. The clutch cover is drivably coupled to the collar such that rotation of the clutch cover rotates the collar.

This disclosure enables various bits to widen (e.g., flare, swage) various open end portions (e.g., with a circular cross-section) of various tubes (e.g., a metal tube, an alloy tube, a copper tube, an aluminum tube) by engaging thereagainst.

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 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.