Method of stamping metal sheets to connect them involves applying ultrasound to joint during pressing to increase joint interpenetration

摘要

The method of stamping metal sheets to connect them involves using a punch and die to press part of the metal sheets out of the plane of the sheets. The deformation energy is supplied by an ultrasound oscillator actuating the punch, which is applied to the sheets during their deformation. A torsional oscillation is applied to the plane of the sheets as cooling occurs. Claims include a machine for carrying out the method.