Fully linked inorganic core production at Volkswagen's cylinder head foundry

摘要

Inorganic core production is now used in many foundries in Germany, particularly for the automotive sector. Exploiting the knowledge and experience gained from over ten years of serial production of intake manifolds and cylinder heads with inorganic cores a fully linked inorganic core shooting unit was put into operation at Volkswagen foundry in Hanover in 2012. The plant design is presented here. It reflects the results of a previous planning workshop with all those involved, including plant operators, the Planning Department and Quality Assurance. The process consists of core material preparation, core shooting, automatic deburring and transport by robot, deposition on trays before placement of each two core packages in the double mold on the casting turned table. The technical and scientific interrelationship of inorganic core technology is presented. The core properties are illustrated by way of hot and cold bending strengths in the production process. Finally, the advantages of inorganic core technology are summarized.