
Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Cross wedge rolling to preform light metal forgings
Querkeilwalzen, um Schmiedeteile aus Leichtmetallen vorzuformen
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Fulltext urn:nbn:de:0011-n-922994 (293 KByte PDF) MD5 Fingerprint: c695a1018ffbdbeb9637293611b05643 Created on: 6.4.2011 |
Abstract
The forging of a component with oblong shape and complex geometry can not be realized in a single forming operation. Preforming operations are applied to ensure complete cavity filling with smallest amount of material loss, to avoid forging defects and to keep loads and wear of the dies low. In preforming the distribution of the material along the main axis can be realized either by displacement or by accumulation. In accumulation processes the cross section of a forging is increased while the length is reduced. The process limit is characterized by the failure mechanisms of outward bending and buckling.