Experimental Research On Regulation Of Drawbead Installation In The Sheet Metal Drawing

The installation of drawbead is one of the most effective means to balance the material flowing in the sheet metal forming. It is possible to use numerical simulation technology in the designing of drawbead because the equivalent drawbead. However, if we have no experience or much more experimentation, it is still a difficult problem to make sure the type or every parameters of the drawbead exactly. Aiming for this, the drawbead installing regulation of the drawing parts with different die shapes is analyzed in this article.In present study, a series of typical drawing parts are arranged according to their shapes. The forming process of these parts is simulated using the equivalent drawbead technology of DYNAFORM software. Then, the regulation between drawbead type and the shape of the drawing parts is found, and it's reliability has been proved by the using in a drawing part's and an auto-body panel mold designings. Some forthcoming experience and rules in relation to drawbead installation are also re-summarized.In drawing parts, the drawbead's type is difficult to be chosen, especially next to the arc part of the die's contour. For this question, an experiment project is founded by using orthogonal experimental design. Based on a lot of experiment and the analysis of the results, the relationship between the drawbead's type which next to the arc part of the die's contour and the blank thickness, the drawing part's length or other size of the part's is founded, which is supposed to direct the drawbead installation in the real sheet metal forming.