Abstract: A method and apparatus are provided for joining tubes. The tubes have ends which are deformed within sleeves each sleeve having an interior channel formed by applying pressure to one end of the tube, a mandrel being temporarily positioned within the tube. Sockets are fitted on the exterior of the tube; pressure is applied to the end portions of the tubes to force the wall of the tube to deform in the area of the interior channels in the sleeve to thereby anchor the tubes within the sleeve. Once the mandrel and the sockets are removed from the interior and exterior of the tube and sleeve, respectively, the sleeve will be clamped within a joint member via a nut which is screwed onto the exterior surface of the sleeve.

Abstract: A method and apparatus are provided for joining tubes. The tubes have ends which are deformed within sleeves having an interior channel by applying pressure to the tube end portion, a mandrel being temporarily placed within the tube and sockets being fitted on the exterior of the tube, pressure being applied to the end portion of the tube to cause the wall of said tube to deform in the area of the sleeve channels to anchor the tube in the sleeve. After the mandrel and the sockets are removed, the sleeve is clamped in the joint member with a nut which is screwed onto it.