Patent ID: 7752729

Claim:
A continuous method for shaping a metallic flat material to give a metallic wave profile, comprising: passing through said flat material between two meshing tooth systems of two rotating, toothed rolls, said rolls being provided with a continuously adjustable center distance between each other, and with a continuously adjustable mutual rotation position, adjusting said center distance before or during said passing through of said flat material for setting a desired profile height of said wave profile, and adjusting a flank clearance between said meshing tooth systems before or during said passing through of said flat material by relative rotation with respect to one another of said rolls for presetting a profile cross-section of said wave profile, wherein said flank clearance between said meshing tooth systems is adjusted in such a way, that a clearance between leading tooth flanks of a first tooth system of said two tooth systems and following tooth flanks of a second tooth system of said two tooth systems at least approximately corresponds to a thickness of said flat material.