Method and apparatus for forming multiple panel shapes

摘要: A method and apparatus for forming more than one shape in a material wherein first group of pairs opposed rollers are arranged to impart the second following first-shaped material. One roller or each pair being readily releasable conjointly movable away from other associated non-shaping position alternately form only shapes bending arrangement at inlet end bends with coil set against substantially flattened condition prior contact groups reduce tendency thereof buckle ripple during shaping thereof.