PROCEDIMENTO ED APPARATO PER FORMARE ELEMENTI PROFILATI DA ESTRUSI DI METALLI O ALTRI MATERIALI TERMICAMENTE CONDUTTORI

摘要

A process for forming a profiled element from a generally longitudinally extending extruded sheet-form member having a plurality of transversely spaced longitudinally extended ribs upstanding therefrom is provided. The process includes the step of removing longitudinally spaced apart portions from some of said ribs by means of a transversely acting punching means.