Centrifugal casting method for producing lightweight construction gear wheel, comprises introducing a mold body into a rotational mold and closing the rotational mold, steadily increasing the speed of the rotational mold, and cooling

The centrifugal casting method for producing lightweight construction gear wheel (50), comprises introducing a mold body (60, 62) into a rotational mold and closing the rotational mold, steadily increasing the speed of the rotational mold with simultaneous introduction of a melt alloy through an inlet of the rotational mold, region-wise cooling the rotational mold, and opening the rotational mold and/or removing the lightweight construction gear wheel after the region-wise solidification of the melt alloy. The centrifugal casting method for producing lightweight construction gear wheel (50), comprises introducing a mold body (60, 62) into a rotational mold and closing the rotational mold, steadily increasing the speed of the rotational mold with simultaneous introduction of a melt alloy through an inlet of the rotational mold, region-wise cooling the rotational mold, and opening the rotational mold and/or removing the lightweight construction gear wheel after the region-wise solidification of the melt alloy. The speed of the rotational mold increases until its gear geometry formed in an area is adjusted to an acceleration value of 5-120 g, to solidify the melt alloy to a very pure, highly compressed and mechanically highly resistant structure. The method comprises initially supplying mechanically highly resistant melt alloy and then a mechanically low resistant melt alloy to the rotational mold. The lightweight construction gear wheel having high dimensional stability, is subjected to a mechanical and/or thermal post treatment such as a hardening process and/or a fine hardening treatment, after removing from the rotational mold. An independent claim is included for a device for producing lightweight construction gear wheel. Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Leichtbauzahnrädern (50) mit den folgenden Schritten: a) Einbringen mindestens eines Formkörpers (32, 60, 62) in eine Schleuderform (18) und Schließen der Schleuderform (18), b) stetiges Erhöhen der Drehzahl der Schleuderform (18) bei gleichzeitigem Einbringen einer Schmelzlegierung (36) in mindestens eine Eingießöffnung (28) der Schleuderform (18), c) vorzugsweise zumindest bereichsweises Abkühlen der Schleuderform (18) und d) Öffnen der Schleuderform (18) sowie Entnehmen des Leichtbauzahnrades (50) nach dem zumindest bereichsweisen Erstarren der Schmelzlegierung (36). Infolge der hohen Rotationsgeschwindigkeit der Schleuderform (18) ergeben sich im Bereich der Verzahnung