Unique among all metal forming methods, the roll forming procedure allows a flat strip of metal to be progressively formed into a complex one-piece shape in a single operation. The animation shown here is an example of a “flower diagram” which is used to visualize the roll forming process before the tooling is built. This process assures a smooth flow of material from the first to the last Phase and allows maximum dimensional control to the finished part. Roll forming presents engineers with the utmost in design flexibility, freeing them from conventional shapes. The process also frequently eliminates costly secondary sub assembly and fabrication operations.