| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of a laser beam welding and a laser beam welding equipment by which a weld defect is decided in a short time and the weld defect is decreased. SOLUTION: A sound intensity during the welding work is measured by a sensor 14 when a laser beam welding is performed. When the sound intensity is smaller than a predetermined level g, a determination part 16 decides that the weld defect occurs and the coordinate points of the weld defect is stored by a storage part 17. The part where the weld defect occurres and stored at the storage part 17 and is welded again after the welding is performed to the end of the welding part.</p> |
