| 摘要 |
1,115,323. Electromagnetic forming. SIEMENS-SCHUCKERTWERKE A.G. 6 Sept., 1965 [19 Sept., 1964], No. 38050/65. Heading B3Q. Electromagnetic forming apparatus comprises a forming coil 11 and a two-part field concentrator 12, an electrical insulator 14 and a flat workpiece 13 being disposed between opposed faces of the parts of the concentrator, and the concentrator-part adjacent the workpiece being formed as a die or recessed, Fig. 2 (not shown), to receive a die (26) against which the workpiece is formed. Annular insulation (24) is provided between the coil and the concentrator, which may have end recesses, Fig. 3 (not shown). |
