| 摘要 |
The fabrication is by forming process, mainly by linear movement and with active medium support, with low complexity and short out times. The active medium is pref. high pressure-resistant lubricant. The linear movement of a stamp die is regulated so that the pressure of the medium is at a previously defined min. value. Series production takes places without any filling stages. At the end of the process, the pressure chamber is removed generating metallic contact faces, for calibration of the formed part by application of a defined force. The forming tool has a mandrel (1) and cup-shaped dies (5,a) in a cylindrical chamber with pressure chambers (9,10,a), which are varied during the forming process. The chambers are not completely sealed, so that leakage flows are possible into a container (6), which contains the tool and which is filled to a set level (4) by the active medium.
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