Abstract
To decrease the weight of auto panels and reinforce the safety of vehicles, the tailor-welded blank (TWB) has been used widely in the auto panels manufacturing. Basic principles and advantages of TWB are described at first. Then the technologies of numerical simulation modeling for TWB are researched. By means of numerical simulation, the weld-bead movement and formability of TWB with the same mechanical property and multi-gauges are investigated. After analyzing the weld-bead movement in three different drawing depth combinations with same total deformed depth, some conclusions of weld-bead movement are drawn finally. It reveals the relationships between the weld-bead movement and formability of multi-gauge TWB.
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