This paper describes the process of Active Hydromechanical Deep Drawing and its advantages. Large extensive deep drawn parts (e.g. roof or door panels in the automotive industry) often show minor denting resistance in their central part. This results from the lower stretching of these regions in the conventional deep drawing process. Active Hydromechanical Deep Drawing using a fluid medium, offers the possibility to compensate this disadvantage by pre-stressing the sheet. The process also includes a simplification of the tool and thereby a reduction of investment and manufacturing costs. Another advantage is the flexibility of the system. With only one tool system, various sheet materials (steel, aluminum alloys, high-strength steel) and different sheet thicknesses can be processed. Numerical investigations provide the opportunity to optimize the tool design. The actual deep drawn part shows good accordance with the simulation results as well as optimized workpiece properties using Active Hydromechanical Deep Drawing.
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