发明名称 |
Continous Butt Welding Method Using Plasma and Laser, and Method for Fabricating Metal Tube Using the Same |
摘要 |
A continuous butt welding method using plasma and laser, and a method for fabricating a metal tube using the butt welding method are disclosed. The butt welding method conducts a laser welding and a plasma welding together against an object to be welded, which has a very narrow butt space. In particular, the plasma is prior to the laser so that the object is preheated by the plasma, and then a preform is melted by a laser beam in order to accomplish the major welding. In addition, a metal sheet is bent to have a circular section so that its both ends are faced with each other, and then the faced both ends are welded using the aforementioned butt welding method, thereby fabricating a metal tube. The butt welding method and the metal tube fabricating method mentioned above remarkably improve a welding speed and productivity of metal tube.
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申请公布号 |
US2007246446(A1) |
申请公布日期 |
2007.10.25 |
申请号 |
US20040629611 |
申请日期 |
2004.06.18 |
申请人 |
LEE SANG-HOON;WON YONG-HEE;KIM TAE-SEONG;LEE TAE-JUNG;BYUN JUNG-HOON;NA SUCK-JOO;YOON SUK-HWAN;HWANG JAE-RYUN |
发明人 |
LEE SANG-HOON;WON YONG-HEE;KIM TAE-SEONG;LEE TAE-JUNG;BYUN JUNG-HOON;NA SUCK-JOO;YOON SUK-HWAN;HWANG JAE-RYUN |
分类号 |
B23K26/00;B23K31/02;B23K10/02;B23K26/14;B23K26/26;B23K26/32;B23K26/42;B23K33/00 |
主分类号 |
B23K26/00 |
代理机构 |
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地址 |
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