DETECTION AND ANALYSIS OF WELD POOL SHAPE FOR CO2 SHORT CIRCUITING ARC WELDING |
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| Authors: | Sun Zhenguo Wang Junbo Chen Qiang Kong Wende |
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| Affiliation: | Department of Mechanical Engineering, Qinghua University Department of Mechanical Engineering, Qinghua University Department of Mechanical Engineering, Qinghua University Department of Mechanical Engineering, Qinghua University |
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| Abstract: | A general industrial CCD( ICCD) camera is redesigned to detect the weld pool without arc at the period of short circuiting, so that the interference of arc and spatter during CO2 short circuiting arc welding is eliminated. Through the analysis of weld pool image, both size parameters (such as weld pool area A, weld pool length L1, L2 and weld pool breadth b) and contour parameters (b, which describe the curves of weld pool boundany) ,which could indicate the shape features of weld pool, had been defined to express weld pool information quantitatively. The investigation of the relationships between weld pool shape parameters and welding process parameters may be beneficial to the quality control of CO2 welding. |
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| Keywords: | ICCD camera Pool image CO2 short circuiting arc welding |
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