| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of and a device for inspecting the laser welding quality capable of detecting a through-hole in a laser weld part with high accuracy. <P>SOLUTION: After completing the laser welding of a member 10 to be welded, the inspection beam is applied from an inspection beam applying means 110 to a laser beam application surface side at a laser weld part of the member 10. When the inspection beam is detected by a beam sensing means 142 arranged opposite to the inspection beam applying means 110 via the member 10, it is determined by a determining means that a through-hole is present in the laser weld part. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
