| 摘要 |
PURPOSE:To provide a method attaining a sound weld zone by using a filler wire in laser welding. CONSTITUTION:In laser welding using a filler wire, when supposing that the diameter of a filler wire is W and the diameter of a laser beam is L, welding is performed under the condition that the value of W/L is 0.5 to 1.4. Consequently, a tolerance to the dislocation or the gap of a base material is enlarged, and a sound welded metal with less weld defects such as a blowhole can be attained. |
