Large-scale. Asymmetrical. Extreme.
Rieber has also specialised in deep-drawing special sheets, minimum sheet thicknesses or sandwich materials.
01 Deep-drawing with tools
Deep drawing – mould and counter-mould
State-of-the-art, CNC-controlled, hydraulic presses with a pressing force ranging from 30 t up to 2000 t. Our sophisticated technology even enables the production of large-surface, asymmetrical end extremely deformed components. The deep-drawn part is the result of an exactly calculated and simulatable production process, where deep-drawing and annealing work steps may alternate repeatedly.
02 Hydromechanical deep-drawing
Hydromechanical deep-drawing is a variation of the classic drawing method. In this process, the female mould is replaced by a pressure-controlled water cushion. The lowering die of the upper tool part presses the sheet on a water cushion, pulls it along while immersing, thus producing the required part geometry exactly.
Due to the distributed pressing of the sheet on the die by the medium, the location of the critical drawing range is shifted from the bottom of the workpiece toward the drawing radius. In this way, higher drawing ratios can be realised compared to the classic drawing method. As an additional advantage, manufacturing costs are reduced due to the relatively low space requirements.