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Published in:
2019 | OriginalPaper | Chapter
Sprue reduction in hot chamber die casting of magnesium alloys
Authors : Mario Schmidt, Hannes Spieth, Christian Haubach, Christian Kühne
Published in: 100 Pioneers in Efficient Resource Management
Publisher: Springer Berlin Heidelberg
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C&C Bark GmbH has been manufacturing high-precision magnesium die-cast parts including machining and surface finishing for a wide variety of industries for five decades now. In magnesium die casting using the hot chamber process, the casting is cast with a sprue slug as an inherent part of the process. This slug is connected to the casting by the sprue. This sprue is cut off together with the slug during trimming and deburring and must be recycled. Depending on the size and geometry of the parts, the number of cavities and the design of the casting run, this may result in several times the final part weight of recirculating material, which must be energetically melted in the production process and later recycled as residual material.