Stamping by elastic medium is a progressive method of sheet metal forming. As a result of such stamping, parts of high precision are obtained.
The main working organ in the presses of elastic medium stamping is a polyurethane pad placed in a container with an open bottom side. The stamping tooling together with the workpiece is "squeezed" into the cushion with a force that causes the elastic cushion to deform and "crimp" the workpiece on the tooling, thus the sheet blank acquires the shape of the surface of the mould on which it is placed. The "crushing" of the tooling with the workpiece into the cushion takes place by means of hydraulic cylinders, which are installed under the working table and when the high-pressure working fluid is fed into the cylinders, the table moves upwards.
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