The pressure die (slide piece) serves the purpose of receiving the radial stress, which is generated during the forming process, and supports the straight tube end from outside. The rotation of both tools around the bending axis bends the tube to the radius of the bend die. When rotary draw bending is applied, the tube is fastened between the bend die and the clamp die. The more common procedures are rotary draw bending, 3-roll bending, compression bending and ram bending (press bending) (Figure 1).

Various methods are used for bending tubes depending on the material in use and the required precision. This process works on metal, alloy, aluminum, titanium, and steel. Tube bending is a process used to reshape tubing or piping into a certain shape or design.