Optimizing green sand compaction

Investigations were conducted to observe the compaction process and optimize several green sand moldmaking methods. Two special transducer sensors were developed and integrated into a pattern plate to record the force of moving sand during compaction. First, an airflow/squeeze molding machine was examined. Second, the relationship between squeeze pressure and density for a flaskless, vertically parted system and blow and squeeze vertically parted molding equipment was examined. Third, and impact molding equipment was validated. Results show that all these methods optimize the compaction of green sand molds.