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Sunken weld is one of the common defects of tailor welded blanks (TWB), which seriously affects the strength of weld. The reasons for sunken weld are discussed based on theoretical analyses and experiments. The results show that sunken weld is affected by gaps and offsets. Positive offset (laser spot shifts to the thicker steel sheet) can reduce the harmful effects of gaps. Also, the limit of offset...
Mismatch is an important quality evaluation standard in Tailor welded blanks. The control of mismatch, especially for thinner blanks, is a difficult technique in tailored blank laser welding process. In this paper, the production and control of mismatch is studied based on a tailored blank laser welding system. The origins of the mismatch are obtained after numbers of experiments: the deformation...
Mismatch is an important quality evaluation standard in Tailor Welded Blanks. The control of mismatch, especially for multi-group blanks, is a difficult technique in Tailored Blank Laser Welding process. In this paper, the production and control of mismatch for multi-group blanks is studied based on a Tailored Blank Laser Welding system. The origins of the mismatch are obtained after numbers of experiments:...
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