发明名称 |
FABRICATION OF PIPE STRINGS USING FRICTION STIR WELDING |
摘要 |
A method of fabricating a metal pipeline by friction stir welding (FSW) along a circumferential interface includes spinning first and second FSW tools about respective axes of rotation in contact with a pipe wall to heat, plasticize, and stir respective zones of plasticized metal at the interface. The zone of plasticized metal produced by the second FSW tool extends deeper into the pipe wall than the zone of plasticized metal produced by the first FSW tool. Relative circumferential movement of the FSW tools along the interface is controlled such that the second FSW tool following the first FSW tool enters the zone of plasticized metal produced by the first FSW tool while the metal in that zone remains plastic. |
申请公布号 |
EP3142826(A2) |
申请公布日期 |
2017.03.22 |
申请号 |
EP20150744650 |
申请日期 |
2015.05.13 |
申请人 |
Acergy France SAS |
发明人 |
ATIN, Cesar;LACOME, Jaques;TOGUYENI, Grégory Alexandre |
分类号 |
B23K37/02;B23K20/12;B23K37/053;B23K101/10 |
主分类号 |
B23K37/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|