Tube with compression fitting and flared fitting used with connection body and method of making same

A process for making a tube fitting for use in combination with a tube, the tube including a passageway therethrough defined by a cylindrically shaped interior surface, the tube including a cylindrically shaped exterior surface, the tube including a wall portion, and, the tube including an end portion, the process comprising the steps of:

• placing an end portion of the tube into engagement with a die, the end portion of the tube engages a surface of a tapered, generally cylindrical, wall of a guide rod of the die such that the interior surface of the tube engages the tube engaging surface of the tapered, generally cylindrical wall of the guide rod of the die, the tube further engages a transitioning surface from the guide rod to the bottom of the die;
• the die supported by a driving piston;
• sliding a sleeve over the tube, the sleeve including a first end portion, an intermediate portion and a second end portion;
• an inner bore through the first end portion, the intermediate portion and the second end portion of the sleeve;
• the inner bore of the sleeve including an interior surface;
• the sleeve including an exterior surface;
• the first end portion of the sleeve including a first varying wall thickness between the interior surface and the exterior surface of the sleeve proximate the first end portion;
• the second end portion of the sleeve including a second varying wall thickness between the interior surface and the exterior surface of the sleeve proximate the second end portion;
• the intermediate portion of the sleeve including a varying wall thickness between the interior surface and the exterior surface of the sleeve proximate the intermediate portion;
• the inner bore of the sleeve through the first end portion including a first shoulder terminating in a first sharp inner circumferential biting edge;
• the inner bore of the sleeve through the first end portion including a second shoulder terminating in a second sharp inner circumferential biting edge;
• and, the first sharp inner circumferential biting edge having a first diameter and the second sharp inner circumferential biting edge having a second diameter;
• restraining, using a gland, the sleeve in position with respect to the sleeve and the die;
• driving the die into the tube and the sleeve with the driving piston flaring the end portion of the tube and securing the sleeve into forceful engagement with the tube, the die forcing the first sharp inner circumferential biting edge into and through the exterior of the end portion of the tube and into the wall portion of the end portion of the tube without narrowing the passageway of the tube, and, the die forcing the second sharp inner circumferential biting edge into and through the exterior of the end portion of the tube and into the wall portion of the end portion of the tube without narrowing the passageway of the tube;
• and
• wherein the end portion of the tube is flared to the leading end of the tube wall.