Concentrateur de champ servant à obtenir une répartition uniforme de la pression lors de la mise en forme de pièces métalliques par l'action de champs magnétiques pulsatoires

摘要

1,061,112. Electromagnetic forming. SIEMENS SCHUCKERTWERKE A.G. Jan. 6, 1966 [Jan. 13, 1965], No. 726/66. Heading B3Q. A field concentrator for electromagnetic forming apparatus comprises at least two apertured electrically conductive members (21, 22, Figs. 1 and 2) separated by electrical insulation (25), each member having ends formed by an axial gap (13 or 14), and the members being orientated so that the gaps are staggered. Three or more members may be provided with the gaps equally spaced. The copper-beryllium concentrator may be shaped for internal or external forming, and the insulation 25 may be silicone lacquer or synthetic resin.