公开(公告)号：US20150174688A1

公开(公告)日：2015-06-25

申请号：US14451759

申请日：2014-08-05

申请人： Hyundai Motor Company ,  Dong-eui University Industry-Academic Cooperation Foundation

发明人： Ji Hong Yoo ,  Seung Hyun Hong ,  Yeong Do Park ,  Jae Won Kim

IPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/24

CPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/166 ,  B23K11/241 ,  B23K2103/04

摘要： A spot welding method for a high strength steel sheet is provided. The method includes a first pulse step for applying electric current of about 8 to 9 kA about 1 to 3 cy and a first cooling step for cooling for about 1 to 3 cy. In addition, the method includes a second pulse step for applying electric current less than the electric current applied in the first pulse step and a second cooling step for cooling for about 1 to 3 cy. A third pulse step includes applying electric current greater than the electric current applied in the second pulse step.

摘要翻译： 提供了一种高强度钢板的点焊方法。 该方法包括第一脉冲步骤，用于施加大约1至3个cy的约8至9kA的电流和用于冷却约1至3个cy的第一冷却步骤。 此外，该方法包括：第二脉冲步骤，用于施加小于在第一脉冲步骤中施加的电流的电流;以及第二冷却步骤，用于冷却约1至3个cy。 第三脉冲步骤包括施加大于在第二脉冲步骤中施加的电流的电流。