EuroWire November 2018

Corporate News

▲ ▲ With its longer press bed, the Smartline EV 3.8 offers ample space, even for more complex progressive dies. Photograph courtesy of Schuler Keeping pace with a Schuler press

and excellent stiffness characteristics, the press delivers precision within 100 th of a millimetre, even when running at several hundred strokes per minute. In progressive lamination stacking, precision also plays a major role because of its impact on energy efficiency. The Smartline EV 3.8 processes sheet metal with a thickness of just 0.2mm. The overall result is higher levels of efficiency, lower eddy-current losses, and less electricity consumed as fuel. Schuler expects to deliver the system in the first half of 2019, and plans are already in the works for the purchase of another identical machine, leaving Waasner prepared for the future of electromobility. Schuler AG – Germany Website : www.schulergroup.com

thin laminations also require greater die complexity and precision. To make matters even more challenging, there is a growing trend towards stamping laminations in two offset tracks, in order to save material and increase productivity. The result is the same across the board: The presses require a bigger die installation area for the longer progressive dies (which in some cases are also twice as heavy) and must also satisfy extremely strict requirements for precision. The Smartline EV 3.8 features an upright opening measuring 3.8m and a press bed with a length of 3.7m, suitable for clamping exactly these types of dies in place. The machine also offers the low deflection and precision found on systems with shorter press beds.

LOCATED not far from the German city of Nuremberg, Waasner has been manufacturing electric motor laminations for more than 70 years. While the advent of e-mobility has given rise to an important new sales market, the motors made for electric cars are accompanied by stricter production requirements. To keep pace with these requirements, Waasner has placed an order for a Smartline EV 3.8 press from Schuler. Because lamination geometries are becoming increasingly complex in the quest to make motors more energy efficient, the number of stamping steps – and therefore the size of the progressive dies used – is also rising. At the same time, the outer diameter of the laminations is increasing to provide better motor performance. Today’s sophisticated stacking techniques for

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November 2018