laminage en "free size"

CONT: La nouvelle géométrie donnée aux cannelures permet d'élargir le domaine de laminage en «free size» (sans contrainte dimensionnelle).

CONT: Free-size rolling is specified as follows: rolling of many finished bar diameters with fine increments; from the same starting section (entry into RSB); by roll gap adjustment only; over a certain diameter range; keeping constantly the required tight tolerances.