| 摘要 |
Provided are a method for assembling a fuel supply pipe having high joint strength in a connection portion of a supply pipe body and a short tubular member and capable of obtaining excellent rust-proofness, and a supply pipe assembling device. Specifically, while an end (3a) of a supply pipe body (3) overlapping a short tubular member (2) is being irradiated with laser light (12a) in a defocused state, the supply pipe body (3) and the short tubular member (2) are relatively rotated once with respect to the laser light (12a) to thereby melt the entire periphery of the end (3a). While the melted end (3a1) is being irradiated with the laser light (12a) in a defocused state, the supply pipe body (3) and the short tubular member (2) are further rotated once or more to thereby connect the end (3a1) and the outer periphery of the short tubular member (2) by welding. |
