Analysis of Filling Capacity during Rubber Pad Sheet Metal Forming Process
Abstract
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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