Installation for electromagnetically forming tubular parts by expansion

摘要

According to the invention, the field coil is formed from a solid metal part in which there has been formed a circular groove 12 and a slot 13 extending (for example in an axial plane) so as to define, along the working surface, a closed path 14 for the discharge current, the latter being supplied from the generator by axial extensions of the two central regions 15 of the solid part, these regions being located on either side of the slot. <IMAGE>