September 30, 2008
Roll forming is a matter of two processes: shaping material using localized deformation with a large amount of material movement (in other words, bending and moving the material). Localized deformation (bending) is a permanent bend with a slight thickness reduction at the bending line. Material movement is a matter of relocating or rotating a section, either formed or unformed, without changing its shape. Although roll forming engineers often address these processes at the same time, it can be helpful to consider forming and movement separately.
May 13, 2008
According to OSHA and BLS data, safety in metal manufacturing has been improving. Workplace injuries and injury severity fell from 2000 to 2006. The biggest improvements have been in severe injuries, so minor injuries have gotten more attention lately. One such minor injury is cutting. Roll formers can do their part to prevent workplace cuts by focusing on deburring.
December 13, 2005
Roll-formed parts are subject to end distortion when the parts are cut at the end of the roll-forming line. Understanding the forces that contribute to end distortion is the first step to balancing the forces and eliminating end distortion.