公开(公告)号：EP2851154A4

公开(公告)日：2015-12-23

申请号：EP12876780

申请日：2012-05-15

申请人： TOYOTA MOTOR CO LTD

发明人： NAKAMURA HIDEO ,  SUGIYAMA TOORU ,  MATSUMOTO SEIICHI ,  YAMAMOTO NORIAKI ,  SHIBATA YOSHINORI

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/20 ,  H01M2/00

CPC分类号： B23K26/034 ,  B23K26/032 ,  B23K26/0622 ,  B23K26/21 ,  B23K26/32 ,  B23K31/125 ,  B23K2201/36 ,  B23K2203/08 ,  B23K2203/10 ,  H01M2/02 ,  H01M2/0439

摘要： A welding process (S1), which uses a welding device (1) that welds a welding object using a pulse laser, wherein a first light-receiving unit (20) receives only infrared rays having a wavelength that allows detection of the keyhole formed in the molten pool from among the infrared rays emitted from the welded portion of the welding object during welding and an analysis unit (40) assesses the quality of the welded portion on the basis of the intensity of the infrared rays received by the first light-receiving unit (20).