Profile formation in tubing

摘要

A method of forming a profile 10 in a section of tubing 12 comprises: providing an expander device 14 having at least one radially extendable expander member 22 (eg. a roller), positioning the device 14 at a predetermined location in the tubing 12 and extending the member 22 to deform the tubing 12 to create a profile 10. A further embodiment comprises the placement of a deformable ring within a section of tubing and deforming it with said device to provide a profile within a tube. A still further embodiment comprises expanding the device to deform the tube to a degree that the tube is cut.