Abstract: A method and apparatus for deep drawing a product from a blank (5), in which, during deep drawing, the blank (5) is held near its edge by a downholder (8) against a die ring cooperating with the downholder (8), thereby preventing, at least reducing wrinkle formation in the blank, by adjusting, at the beginning of deep drawing, the downholder (8) such that a downholder (8) force exerted by the downholder (8) on the edge of the blank is relatively small, and by controlling, during the further course of the process, the downholder (8) on the basis of a predetermined thickness trend of the mentioned edge during deep drawing and/or a trend or critical value derived from this thickness trend.

Abstract: The invention relates to a method for manufacturing an electrode for a plasma reactor, comprising the step of interconnecting a support ring and an electrode plate provided with through holes mechanically and electrically by means of a shrink connection, wherein the connecting step furthermore comprises the application of an electrically conductive layer to the joining interface between the electrode plate and the support ring. Furthermore an electrode is provided, wherein said support ring and said electrode include interlocking parts, to the joining surface at which the electrically conductive layer is applied.