Roll bending
The roll bending is a manufacturing process from the group bend forming with a rotating tool movement . Rollers , which can also be profiled, are used as tools . In contrast to rolling, which is part of pressure forming and processes massive raw parts ( massive forming ), bending stresses are introduced into the forming zone in roll bending and mostly sheet metal is used as raw part ( sheet metal forming ), sometimes also massive raw parts such as rods or tubes.
In DIN 8586, roll bending is classified as follows:
- Roll rounding : Rounding off straight blanks that are bent between the rollers. The bending radius is set via the position of the rollers, not their shape.
- Roller leveling : Used to Align , so the straightening, crooked workpieces.
- Roll-drawing bending : Here the rollers are not driven, as is usually the case, but the workpiece is pulled through between two or more rotating rollers. Otherwise it corresponds to roll forming.
- Roll forming : Profiled rollers are used to create a profile from a flat strip.
- Corrugated bending : The "rollers" have several bulges distributed around the circumference, similar to a gear . It is used to manufacture corrugated iron .
literature
- Sami Chatti, Frauke Maevus, Matthias Hermes, A. Ermann Tekkaya, Matthias Kleiner: Bendumoforming in: Hartmut Hoffmann , Reimund Neugebauer , Günter Spur : Handbuch Umformen , Hanser, 2012, pp. 574, 584 f.
- Eckart Doege , Bernd-Arno Behrens : Handbook Umformtechnik , Springer, 2010, 2nd edition, p. 376– f.
- Fritz Klocke , Wilfried König : Manufacturing process 4 - forming , Springer, 5th edition, pp. 401–403.