Roll forming process design — pass schedule (number of passes, bend angle per pass), flower pattern, springback compensation (overbend), roll tooling (material, hardness, surface finish), material selection (HSLA, stainless, coated steel), speed and lubrication, strip width calculation (developed length), side edge conditions, bow and camber, forming limits (r/t ratio, crack avoidance), tolerance capabilities, and applications (structural sections, gutters, automotive door frames).