公开(公告)号：US20180169786A1

公开(公告)日：2018-06-21

申请号：US15379671

申请日：2016-12-15

申请人： METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE

发明人： Kuan-Yu Chen ,  Lung-Tien Wu ,  Chun-Chieh Wang ,  Chia-Min Wei ,  Chun-Lin Yeh

IPC分类号： B23K26/06 ,  G01N21/956 ,  B23K26/03 ,  B23K26/26 ,  B23K26/70

CPC分类号： B23K26/26 ,  B23K26/032 ,  B23K26/0846 ,  G01N21/8422 ,  G01N21/86 ,  G01N21/8901

摘要： A method for manufacturing metal strip comprises abutting at least two metal strips to form a abutment interface between each other, then welding the metal strips along the abutment interface by a laser light to form a weld pass with a welding penetration depth between the metal strips, and a reflected light is reflected from the weld pass, and finally receiving the reflected light by a spectrometer which can determine the welding penetration depth according to the reflected light spectrum. A welding parameter can be selectively adjusted according to the welding penetration depth to correct the welding penetration depth in real time, and the follow-up weld pass can conform to the specification for decreasing weld defective ratio.