| 发明名称 |
SPOT WELDING METHOD FOR HIGH STRENGTH STEEL SHEET |
| 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. |
| 申请公布号 |
US2015174688(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201414451759 |
申请日期 |
2014.08.05 |
| 申请人 |
Hyundai Motor Company ;Dong-eui University Industry-Academic Cooperation Foundation |
发明人 |
Yoo Ji Hong;Hong Seung Hyun;Park Yeong Do;Kim Jae Won |
| 分类号 |
B23K11/11;B23K11/16;B23K11/24 |
主分类号 |
B23K11/11 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A spot welding method for a high strength steel sheet comprising:
a first pulse step for applying electric current of about 8 to 9 kA for about 1 to 3 cy; a first cooling step for cooling for about 1 to 3 cy; a second pulse step for applying electric current less than the electric current applied in the first pulse step; a second cooling step for cooling for about 1 to 3 cy; and a third pulse step for applying electric current greater than the electric current applied in the second pulse step. |
| 地址 |
Seoul KR |
