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Pillow hydroforming

Forming process where plates that are welded together is placed in a die and filled with water at high pressure. Thus molding it into the shape of the die.

Beskrivning
Illustration of Pillow hydroforming

The process

The workpiece comprises two edge welded plates, placed in a mold. Hydraulic pressure is then applied by water between the plates to thus press out against the walls of the molding tool.