公开(公告)号：EP3183076A1

公开(公告)日：2017-06-28

申请号：EP14899931.1

申请日：2014-08-18

申请人： Valmet Aktiebolag

发明人： APEL, Martin ,  PETTERSSON, Krister

IPC分类号： B21D26/14 ,  B23K20/06 ,  H05B6/14

CPC分类号： B23K20/06 ,  B23K2201/14 ,  H05B6/14 ,  H05B6/36

摘要： The invention relates to a welding head for magnetic pulse welding of hollow thin-walled profile to an inner member having a complementary outer form to said hollow thin-walled profile. The weld head comprises two movable weld head halves (10a,10b) forming said weld head wherein each half has at least one individual induction coil (12a,12b) connected to a power source independently from the other weld head half, with coils wound in a kidney-shape. The work piece is clamped between shapers (15a,15b) integrated with each half. With this weld head could for example work pieces such as tubular thin-walled profiles be welded, even if they are integrated in a closed tubular design, as the weld head could be closed quickly over the welding position and opened for release of the work piece without experiencing arching in clamping area.

摘要翻译： 本发明涉及一种用于将中空薄壁型材磁脉冲焊接到具有与所述中空薄壁型材互补的外部形状的内部构件的焊接头。 焊接头包括形成所述焊接头的两个可动焊接头半部（10a，10b），其中每个半部具有至少一个单独的感应线圈（12a，12b），所述单独感应线圈独立于另一个焊接头半部而连接到电源， 肾形。 工件被夹持在与每个半体成一体的整形器（15a，15b）之间。 使用这种焊接头例如可以焊接管状薄壁型材等工件，即使它们集成在封闭的管状设计中，因为焊接头可以在焊接位置上快速关闭并打开以释放工件 而不会在夹紧区域产生拱起现象。