Vision-based measurement of weld pool geometry in constant-current gas tungsten arc welding

被引：21
|
作者：
Wu, CS [1 ]
Gao, JQ [1 ]
Liu, XF [1 ]
Zhao, YH [1 ]
机构：
[1] Shandong Univ, Inst Mat Joining, MOE Key Lab LSMH, Jinan 250061, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2003年 / 217卷 / 06期
关键词：
constant-current GTAW; weld pool geometry; vision-based measurement;
D O I：
10.1243/09544050360673279
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The common commercial charge coupled. device (CCD) camera is combined with a composite light filter to form a vision sensing system of low cost. It can capture the whole image of a weld pool clearly during constant-current gas tungsten arc welding (GTAW). Based on the image-processing algorithm, the edges of the weld pool under different welding conditions can be extracted. Calibration is made to obtain the weld pool geometry in real size. The measured results are useful for developing a welding process control system-and verifying the mathematical models of weld pool behaviours.
引用
收藏
页码：879 / 882
页数：4
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