Einrichtung und Verfarhen zum Bruchtrennen von Werkstücken

摘要

The invention relates to a device (2) for fracture-separating workpieces, comprising an expanding mandrel (16), which can be inserted into a bearing bore (6) to fracture-separate the latter and can be expanded in a radial direction in order to apply a fracture-separation force. The device also comprises an oscillation device (26), by means of which the expanding mandrel (16) can be subjected to an alternating dynamic force that is superimposed on or added to the fracture-separation force, to create oscillations in the bearing bore (6).