Experimental study on principle of vibratin moulding for the expendable pattern casting process (EPC)

摘要

Sand fill and compaction are essential factors of successsful EPC.The relationship between excitation parameters of compaction table and sand fluidity,filling and ocmpaction for EPC was researched in this paper.It was showed that some optimization of the excitation parameters of compaction table could result in snad effective void filling and higher compaction densities.And three-dimension vibration of sand could be obtained on the single vertical ompactin table if flask wall vibrates effectively in expect vibration mode at the horizontal directions.The objective of the study is to develop laboratory information need to the design of compaction table for EPC process.