Analysis of Filling Capacity during Rubber Pad Sheet Metal Forming Process

Karem M. Younis, Adnan I. Aljarjary, Jalil J. Shukur


    Rubber-pad  forming  process  of  round sheet  blanks  into  axisymmetric cups  is  studied  by  numerical and experimental approaches. In the experiments, round metal sheets are formed into the axisymmetric cups by  pressing  them  between  a  rubber pad  and  a  former block  with  desirable  shape. To  investigate  influences  of  different parameters  on  the  filling capacity, former block with complex shape has design and manufacture, blank  material of  low carbon steel (ST12)  with thickness 0.5 mm ,three polyurethane rubber with different hardness (50,60 and 70) shore A  and rubber pad having three different thickness (40,60 and 80) mm . ANSYS Workbench utilized to perform the numerical part of this research. The results showed that the produced filling capacity is significantly affected by rubber pad hardness, rubber pad thickness as well as rubber pad layer order.

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