New junction of sheet metal parts by cold deformation and machine tools for the realization of such a junction.

摘要

NEW POINT MOUNTING PLATES FOR FLOW IN COLD TYPE IN WHICH PRACTICE SIMULTANEOUSLY IN TWO PLATES (7 and 8) by a punch and a die, A CIRCULAR (7A, 8A) CAVITY, said cavities (7A, 8A) ASI HOUSED one inside the other and having, near the bottom, a widening (7C, 8C), characterized in that the bottom of said cavities has at least one projection (7B, 8B) extending into the interior of the cavities (7A, 8A).