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Micro-Hydroforming-Hydroforming of Microcomponents

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07.04.2008

The hydroforming method generates precise structural shapes by expanding a metallic, usually tubular, moulding blank within a forming tool. This is realised by the pressure of a fluid acting on the inside of the workpiece until the workpiece wall is bearing on the surrounding impression of the forming tool. This invention concerns a device for hydroforming of microcomponents from tubular moulding blanks. In this novel design, a carriage is sliding along guides, moved by a drive mounted separately from the guides. Hereby, the drive is coupled to the carriage free of any transverse forces. This minimises elastic deformations. Bending stresses in the plungers are avoided. The relative position between guide and forming tool is maintained.

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