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1. 发明申请

WO1998030354A1 ELECTROMAGNETICALLY FORMING A TUBULAR WORKPIECE 审中-公开
标题翻译：电磁形成管状工件
公开(公告)号：WO1998030354A1
公开(公告)日：1998-07-16
申请号：PCT/US1997024254
申请日：1997-12-18
申请人： NORTHROP GRUMMAN CORPORATION
发明人： NORTHROP GRUMMAN CORPORATION , RATHKE, John , BURGER, Elvin, Charles , PETERSON, Edward, M. , HORAN, Christopher
IPC分类号： B23P17/00
CPC分类号： B21D26/14 , Y10T29/49803
摘要： A process for electromagnetically forming an elongated tubular workpiece (22) by applying an electromagnetic force provided by an energized workcoil (24) to the workpiece radially of its longitudinal axis, and by simultaneously applying an axial compressive force to the workpiece. The radial electromagnetic force forces a section of the workpiece against a forming surface (34) of a die (28). The axial compressive force is provided at one or both ends of the workpiece by positioning one surface of an electrically conductive plate (40, 42) in engagement with an end (44, 46) of the workpiece such that the plate extends transversely to the longitudinal axis of the workpiece, and positioning a flat electrically conductive coil (50, 52) adjacent to but electrically isolated from a second surface of the plate. By energizing the flat coil, a force is created against the plate to thereby compress the workpiece between its ends.
摘要翻译：一种用于通过将通电功卷（24）提供的电磁力在其纵向轴线径向地施加到工件上并通过同时向工件施加轴向压力来电磁地形成细长管状工件（22）的方法。径向电磁力迫使工件的一部分抵靠模具（28）的成形表面（34）。轴向压缩力通过将导电板（40,42）的一个表面定位成与工件的端部（44,46）接合而设置在工件的一端或两端，使得板横向延伸到纵向并且将平坦的导电线圈（50,52）定位成与板的第二表面相邻但电隔离。通过对扁平线圈通电，产生抵抗板的力，从而在其端部之间压缩工件。

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