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What is PIPE and TUBE bending?


Pipe bending is the umbrella term for metal forming processes used to permanently form pipes or tubes. One has to differentiate between form-bound and free form-bending procedures, as well as between heat supported and cold forming procedures.

Form bound bending procedures like “press bending” or “rotary draw bending” are used to form the work piece into the shape of a die. Straight tube stock can be formed using a bending machine to create a variety of single or multiple bends and to shape the piece into the desired form. These processes can be used to form complex shapes out of different types of ductile metal tubing. 

Free form-bending processes, like roll-push bending, shape the work piece kinematically, thus the bending contour is not dependent on the tool geometry.

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