Invention Grant
US09592544B2 Draw forming method 有权
成型法

Draw forming method
Abstract:
A draw bead is formed in a plate-shaped material in which a drawn portion is formed, outside the drawn portion, the draw bead being used to adjust an inflow of the plate-shaped material into a drawing die. The drawn portion is drawn in the plate-shaped material by using the draw bead as formed. The draw bead is crushed and flattened after the drawn portion is drawn.
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